Heatiator CD4842IR-C, CD4842ILR-C, CD4236IR-C, CD4236ILR-C User Manual

Models:
CD4236IR-C
CD4842IR-C
CD4236ILR-C
CD4842ILR-C

Owner’ s Manual

Installation and Operation

NOTICE

DO NOT DISCARD THIS MANUAL

• Important operating
and maintenance
instructions included.

WARNING: If the information in these
instructions is not followed exactly, a fi re
or explosion may result causing property
damage, personal injury, or death.

• DO NOT store or use gasoline or other fl am-
mable vapors and liquids in the vicinity of this
or any other appliance.

• What to do if you smell gas

- DO NOT try to light any appliance.

- DO NOT touch any electrical switch. DO

NOT use any phone in your building.

- Immediately call your gas supplier from a

neighbor’s phone. Follow the gas suppli­er’s instructions.

- If you cannot reach your gas supplier, call

the fi re department.

• Installation and service must be performed
by a qualifi ed installer, service agency , or the
gas supplier.

This appliance may be installed as an OEM installation in
manufactured home (USA only) or mobile home and must be
installed in accordance with the manufacturer’s instructions
and the manufactured home construction and safety standard,

Title 24 CFR, Part 3280 or Standard for Installation in Mobile
Homes, CAN/CSA Z240MH, in Canada.

This appliance is only for use with the type(s) of gas indicated
on the rating plate.

• Read, understand and follow
these instructions for safe
installation and operation.

DO NOT

DISCARD

• Leave this manual with
party responsible for use
and operation.

WARNING

HOT SURFACES!

Glass and other surfaces are hot during
operation AND cool down.

Hot glass will cause burns.

• DO NOT touch glass until it is cooled

• NEVER allow children to touch glass

• Keep children away

• CAREFULLY SUPERVISE children in same room as
fi replace.

• Alert children and adults to hazards of high temperatures.

High temperatures may ignite clothing or other fl ammable
materials.

• Keep clothing, furniture, draperies and other fl ammable
materials away.

This appliance has been supplied with an integral barrier
to prevent direct contact with the fi xed glass panel. DO
NOT operate the appliance with the barrier removed.

Contact your dealer or Hearth & Home Technologies if the
barrier is not present or help is needed to properly install one.

In the Commonwealth of Massachusetts installation must be
performed by a licensed plumber or gas fi tter.

See Table of Contents for location of additional Commonwealth
of Massachusetts requirements.

Installation and service of this appliance should be
performed by qualifi ed personnel. Hearth & Home
Technologies suggests NFI certifi ed or factory trained
professionals, or technicians supervised by an NFI
certifi ed professional.

1Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

Read this manual before installing or operating this appliance.

Please retain this owner’s manual for future reference.

A. Congratulations

Congratulations on selecting a Heatilator gas fi replace, an
elegant and clean alternative to wood burning fi replaces.
The Heatilator gas fi replace you have selected is designed
to provide the utmost in safety, reliability, and effi ciency.

As the owner of a new fi replace, you’ll want to read and
carefully follow all of the instructions contained in this
owner’s manual. Pay special attention to all cautions and
warnings.

Homeowner Reference Information

This owner’s manual should be retained for future
reference. We suggest that you keep it with your other
important documents and product manuals.

The information contained in this owner’s manual, unless
noted otherwise, applies to all models and gas control
systems.

Your new Heatilator gas fi replace will give you years of
durable use and trouble-free enjoyment. Welcome to the
Heatilator family of fi replace products!

We recommend that you record the following pertinent
information about your fi replace.

Model Name: ___________________________________________ Date purchased/installed: __________________
Serial Number: __________________________________________ Location on fi replace: _____________________
Dealership purchased from: _______________________________ Dealer Phone: __________________________
Notes: _______________________________________________________________________________________
_____________________________________________________________________________________________

Listing Label Information/Location

Type of Gas

Gas and Electric
Information

Not Not for for use use with with solid solid fuel.fuel.
((Ne Ne doit doit pas pas entre entre utilise utilise avec avec un un combustible combustible solide).solide).

Type Type of of Gas Gas (Sorte (Sorte De De Gaz)Gaz)::

NNAATURALTURAL GASGAS

Minimum Minimum Permissible Permissible Gas Gas Supply Supply for for Purposes Purposes of of Input Input Adjustment.Adjustment.
Approved Approved Minimum Minimum (De (De Gaz) Gaz) AcceptableAcceptable 0.00.0 in in w . c .w.c. (Po. (Po. Col. Col. d’eau)d’eau)
Maximum Maximum Pressure Pressure (Pression)(Pression) 0.00.0 in in w.c.w.c. (Po. (Po. Col. Col. d’eau)d’eau)
Maximum Maximum Manifold Manifold Pressure Pressure (Pression)(Pression) 0.00.0 in in w.c.w.c. (Po. (Po. Col. Col. d’eau)d’eau)
Minimum Minimum Manifold Manifold Pressure Pressure (Pression)(Pression) 0.00.0 in in w.c.w.c. (Po. (Po. Col. Col. d’eau)d’eau)
Total Total Electrical Electrical Requirements: Requirements: 000Vac, 000Vac, 00Hz., 00Hz., less less than than 00 00 AmperesAmperes

ALTITUDE:ALTITUDE: 0-0000 0-0000 FT.FT. 0000-0000FT.0000-0000FT.
MAX. MAX. INPUT INPUT BTUH:BTUH: 00,00000,000 00,00000,000
MIN. MIN. INPUT INPUT BTUH:BTUH: 00,00000,000 00,00000,000
ORIFICE ORIFICE SIZE:SIZE: #XXXXX#XXXXX #XXXXX#XXXXX

The model information regarding your specifi c fi replace can be found on
the rating plate usually located in the control area of the fi replace.

Heatilator, a brand of Hearth & Home Technologies, Inc.
7571 215th Street West, Lakeville, MN 55044

This This appliance appliance must must be be installed installed in in accordance accordance with with local local codes, codes, if if any; any; if if not, not, follow follow ANSI ANSI Z223.1Z223.1
in in the the USA USA or or CAN/CGA CAN/CG A B149 B149 installation installation codes. codes. (Installer (Installer l’appareil l’appareil selon selon les les codes codes ou ou reglementsreglements

locaux locaux ou, ou, en en l’absence l’absence de de tels tels reglements, reglements, selon selon les les codes codes d’installation d’installation CAN/CGA-B149.)CAN/CGA-B149.)

ANSI ANSI Z21XX-XXXX Z21XX-XXXX · · CSA CSA 2.XX-MXX 2.XX-MXX · · UL307BUL307B

IN IN CANADACANADA

Model:Model:

(Modele):(Modele):

SerialSerial

(Serie):(Serie):

XXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXX

MADE MADE IN IN USAUSA

Model Number

Serial Number

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/112

Safety Alert Key:

• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.

• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.

• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

• NOTICE: Used to address practices not related to personal injury.

Table of Contents

A. Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

B. Limited Lifetime Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1 Listing and Code Approvals

A. Appliance Certifi cation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

B. Tempered Glass Specifi cations . . . . . . . . . . . . . . . . . . . . . 7

C. BTU Specifi cations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

D. High Altitude Installations . . . . . . . . . . . . . . . . . . . . . . . . . . 7

E. Non-Combustible Materials Specifi cation. . . . . . . . . . . . . . 7

F. Combustible Materials Specifi cation . . . . . . . . . . . . . . . . . 7

G. Electrical Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

H. Requirements for the Commonwealth of Massachusetts . . 8

User Guide

2 Operating Instructions

A. Gas Fireplace Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

B. Your Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

C. Fan Kit (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

D. Clear Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

E. Decorative Doors and Fronts . . . . . . . . . . . . . . . . . . . . . . 10

F. Fixed Glass Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

G. Remote Controls, Wall Controls and Wall Switches . . . . . 10

H. IPI Battery Tray/Battery Installation . . . . . . . . . . . . . . . . . 10

I. Control Module Operation . . . . . . . . . . . . . . . . . . . . . . . . 11



J. Before Lighting Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . 11

K. Lighting Instructions (IPI) . . . . . . . . . . . . . . . . . . . . . . . . . 12

L. After Fireplace is Lit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

M. Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . 13

3 Maintenance and Service

A. Maintenance Tasks-Homeowner . . . . . . . . . . . . . . . . . . . 14



B. Maintenance Tasks-Qualifi ed Service Technician . . . . . . 15

C. Logs/Grate and Valve Assembly Removal . . . . . . . . . . . . 16

D. Burner Identifi cation/Verifi cation . . . . . . . . . . . . . . . . . . . . 18

Installer Guide

6 Termination Locations

A. Vent Termination Minimum Clearances . . . . . . . . . . . . . . 24

7 Vent Information and Diagrams

A. Approved Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

B. Vent Table Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

C. Use of Elbows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

D. Measuring Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

E. Vent Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

8 Vent Clearances and Framing

A. Pipe Clearances to Combustibles . . . . . . . . . . . . . . . . . . 37

B. Wall Penetration Framing . . . . . . . . . . . . . . . . . . . . . . . . . 37

C. Install the Ceiling Firestop . . . . . . . . . . . . . . . . . . . . . . . . 38

D. Install Attic Insulation Shield . . . . . . . . . . . . . . . . . . . . . . . 39

E. Installing the Optional Heat-Zone® Gas Kit . . . . . . . . . . . 39

9 Appliance Preparation

A. Top Vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

B. Rear Vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

C. Installing the Non-combustible Board. . . . . . . . . . . . . . . . 42

D. Securing and Leveling the Appliance . . . . . . . . . . . . . . . . 42

10 Installing Vent Pipe (DVP and SLP Pipe)

A. Assemble Vent Sections (DVP Pipe Only) . . . . . . . . . . . . 43

B. Assemble Vent Sections (SLP Pipe Only) . . . . . . . . . . . . 44

C. Assemble Slip Sections . . . . . . . . . . . . . . . . . . . . . . . . . . 44

D. Secure the Vent Sections . . . . . . . . . . . . . . . . . . . . . . . . . 45

E. Disassemble Vent Sections . . . . . . . . . . . . . . . . . . . . . . . 45

F. Install Decorative Ceiling Components (SLP only) . . . . . . 46

G. Install Metal Roof Flashing . . . . . . . . . . . . . . . . . . . . . . . . 47

H. Assemble and Install Storm Collar . . . . . . . . . . . . . . . . . . 47

I. Install Vertical Termination Cap . . . . . . . . . . . . . . . . . . . . 48

J. Install Decorative Wall Components (SLP only) . . . . . . . . 48

K. Heat Shield Requirements for Horizontal Termination . . . 48
L. Install Horizontal Termination Cap (DVP and SLP Pipe) . 49





4 Getting Started

A. Typical Appliance System. . . . . . . . . . . . . . . . . . . . . . . . . 19

B. Design and Installation Considerations . . . . . . . . . . . . . . 20

C. Tools and Supplies Needed . . . . . . . . . . . . . . . . . . . . . . . 20

D. Inspect Appliance and Components . . . . . . . . . . . . . . . . . 20

5 Framing and Clearances

A. Selecting Appliance Location . . . . . . . . . . . . . . . . . . . . . . 21

B. Constructing the Appliance Chase . . . . . . . . . . . . . . . . . . 22

C. Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

D. Mantel and Wall Projections . . . . . . . . . . . . . . . . . . . . . . . 23

11 Gas Information

A. Fuel Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

B. Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

C. Gas Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

D. High Altitude Installations . . . . . . . . . . . . . . . . . . . . . . . . . 50

12 Electrical Information

A. Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

B. IntelliFire PlusTM Ignition System Wiring . . . . . . . . . . . . . . 51

C. Optional Accessories Requirements . . . . . . . . . . . . . . . . 51

D. Electrical Service and Repair . . . . . . . . . . . . . . . . . . . . . . 52

E. Junction Box Installation. . . . . . . . . . . . . . . . . . . . . . . . . . 52

F. Wall Switch Installation for Fan (Optional) . . . . . . . . . . . . 52

3Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

13 Finishing

A. Mantel and Wall Projections . . . . . . . . . . . . . . . . . . . . . . . 53

B. Facing Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

14 Appliance Setup

A. Remove Fixed Glass Assembly . . . . . . . . . . . . . . . . . . . . 54

B. Remove the Shipping Materials . . . . . . . . . . . . . . . . . . . . 54

C. Clean the Appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

D. Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

E. Ember Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

F. Place the Lava Rock and Vermiculite . . . . . . . . . . . . . . . . 54

G. Install the Log Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . 55

H. Fixed Glass Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

I. Install Trim and/or Surround . . . . . . . . . . . . . . . . . . . . . . . 56

J. Air Shutter Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

15 Troubleshooting

A. IntelliFire PlusTM Ignition System . . . . . . . . . . . . . . . . . . . 57



16 Reference Materials

A. Appliance Dimension Diagram . . . . . . . . . . . . . . . . . . . . . 59

B. Vent Components Diagrams . . . . . . . . . . . . . . . . . . . . . . 61

C. Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

D. Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

 = Contains updated information.

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/114

B. Limited Lifetime Warranty

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Hearth & Home Technologies Inc.

LIMITED LIFETIME WARRANTY

Hearth & Home Technologies Inc., on behalf of its hearth brands (”HHT”), extends the following warranty for
HHT gas, wood, pellet, coal and electric hearth appliances that are purchased from an HHT authorized dealer.

WARRANTY COVERAGE:

HHT warrants to the original owner of the HHT appliance at the site of installation, and to any transferee taking ownership
of the appliance at the site of installation within two years following the date of original purchase, that the HHT appliance
will be free from defects in materials and workmanship at the time of manufacture. After installation, if covered compo­nents manufactured by HHT are found to be defective in materials or workmanship during the applicable warranty period,
HHT will, at its option, repair or replace the covered components. HHT, at its own discretion, may fully discharge all of its
obligations under such warranties by replacing the product itself or refunding the verified purchase price of the product
itself. The maximum amount recoverable under this warranty is limited to the purchase price of the product. This warranty
is subject to conditions, exclusions and limitations as described below.

WARRANTY PERIOD:

Warranty coverage begins on the date of original purchase. In the case of new home construction, warranty coverage
begins on the date of first occupancy of the dwelling or six months after the sale of the product by an independent,
authorized HHT dealer/ distributor, whichever occurs earlier. The warranty shall commence no later than 24 months
following the date of product shipment from HHT, regardless of the installation or occupancy date. The warranty period for
parts and labor for covered components is produced in the following table.

The term “Limited Lifetime” in the table below is defined as: 20 years from the beginning date of warranty coverage for
gas appliances, and 10 years from the beginning date of warranty coverage for wood, pellet, and coal appliances. These
time periods reflect the minimum expected useful lives of the designated components under normal operating conditions.

Warranty Period HHT Manufactured Appliances and Venting

Parts Labor Gas Wood Pellet

1 Year

2 years

3 years

ears 1 year X X Castings and baffles

5

7 years 3 years X X X

10

ears

Limited

Lifetime

1 year X Burners, logs and refractory

3 yearsXXXXX Firebox and heat exchanger

XXXXXXX

XXX

XXXXX Factor

X Molded refractor

XFire

EPA

Wood

Coal Electric Venting

Components Covered

All parts and material except as

covered by Conditions,

Exclusions, and Limitations

listed

Igniters, electronic components,

and

lass

-installed blowers

ots and burnpots

Manifold tubes,

HHT chimne

and termination

anels

90 Days

4021-645C 12-29-10 Page 1 of 2

XXXXXXX

See conditions, exclusions, and limitations on next page.

All replacement parts

ond warranty period

be

5Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

B. Limited Lifetime Warranty (continued)

WARRANTY CONDITIONS:

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4021-645C 12-29-10 Page 2 of 2

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/116

1

1

Listing and Code Approvals

A. Appliance Certifi cation

MODELS: CD4236IR-C, CD4236ILR-C,
CD4842IR-C, CD4842ILR-C

LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Direct Vent Gas Appliance Heater
STANDARD: ANSI Z21.88-2009 • CSA 2.33-2009

This product is listed to ANSI standards for “Vented Gas
Appliance Heaters” and applicable sections of “Gas Burn­ing Heating Appliances for Manufactured Homes and
Recreational Vehicles”, and “Gas Fired Appliances for
Use at High Altitudes”.

NOTICE: This installation must conform with local codes.
In the absence of local codes you must comply with the
National Fuel Gas Code, ANSI Z223.1-latest edition in
the U.S.A. and the CAN/CGA B149 Installation Codes in
Canada.

NOT INTENDED FOR USE AS A PRIMAR Y HEAT SOURCE.

This appliance is tested and approved as either supplemen­tal room heat or as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.

B. Tempered Glass Specifi cations

Hearth & Home Technologies appliances manufactured
with tempered glass may be installed in hazardous loca­tions such as bathtub enclosures as defi ned by the Con-
sumer Product Safety Commission (CPSC). The tempered
glass has been tested and certifi ed to the requirements
of ANSI Z97.1 and CPSC 16 CFR 1202 (Safety Glazing
Certifi cation Council SGCC# 1595 and 1597. Architectur-
al Testing, Inc. Reports 02-31919.01 and 02-31917.01).

This statement is in compliance with CPSC 16 CFR Sec-
tion 1201.5 “Certifi cation and labeling requirements”
which refers to 15 U.S. Code (USC) 2063 stating “…Such
certifi cate shall accompany the product or shall otherwise
be furnished to any distributor or retailer to whom the
product is delivered.”

Some local building codes require the use of tempered
glass with permanent marking in such locations. Glass
meeting this requirement is available from the factory.
Please contact your dealer or distributor to order.

C. BTU Specifi cations

Models

U.S. (0-2000 ft.) or

Canada (2000-4500 ft.)

CD4236IR-C (NG)

CD4236ILR-C (LP)

CD4842IR-C (NG)

CD4842ILR-C (LP)

US

CANADA

US

CANADA

US

CANADA

US

CANADA

Maximum

Input BTU/h

30,000 16,000 37
27,000 14,400 38
29,000 16,000 52
26,100 14,400 53
35,000 18,000 33
31,500 16,200 34
32,500 17,000 51
29,250 15,300 52

Minimum

Input BTU/h

Orifi ce

Size

(DMS)

D. High Altitude Installations

NOTICE: If the heating value of the gas has been reduced,
these rules do not apply. Check with your local gas utility
or authorities having jurisdiction.

When installing above 2000 feet elevation:

• In the USA: Reduce input rate 4% for each 1000 feet
above 2000 feet.

• In CANADA: Reduce input rate 10% for elevations
between 2000 feet and 4500 feet. Above 4500 feet,
consult local gas utility.

Check with your local gas utility to determine proper
orifi ce size.

E. Non-Combustible Materials Specifi cation

Material which will not ignite and burn. Such materials are
those consisting entirely of steel, iron, brick, tile, concrete,
slate, glass or plasters, or any combination thereof.

Materials that are reported as passing ASTM E 136,

Standard Test Method for Behavior of Materials in a
Vertical Tube Furnace at 750 ºC and UL763 shall be

considered non-combustible materials.

F. Combustible Materials Specifi cation

Materials made of or surfaced with wood, compressed pa­per, plant fi bers, plastics, or other material that can ignite
and burn, whether fl ame proofed or not, or plastered or
unplastered shall be considered combustible materials.

G. Electrical Codes

NOTICE: This appliance must be electrically wired and
grounded in accordance with local codes or, in the absence
of local codes, with National Electric Code ANSI/NFPA

70-latest edition or the Canadian Electric Code CSA
C22.1.

• A 110-120 VAC circuit for this product must be protected

with ground-fault circuit-interrupter protection, in compliance
with the applicable electrical codes, when it is installed in
locations such as in bathrooms or near sinks.

7Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

Note: The following requirements reference various
Massachuset ts and national codes not contain ed in this
document.

H. Requirements for the Commonwealth of

Massachusetts

For all side wall horizontally vented gas fueled equipment
installed in every dwelling, building or structure used in
whole or in part for residential purposes, including those
owned or operated by the Commonwealth and where the
side wall exhaust vent termination is less than seven (7)
feet above fi nished grade in the area of the venting, in-
cluding but not limited to decks and porches, the following
requirements shall be satisfi ed:

Installation of Carbon Monoxide Detectors

At the time of installation of the side wall horizontal vented
gas fueled equipment, the installing plumber or gas fi tter
shall observe that a hard wired carbon monoxide detector
with an alarm and battery back-up is installed on the fl oor
level where the gas equipment is to be installed. In addi­tion, the installing plumber or gas fi tter shall observe that
a battery operated or hard wired carbon monoxide detec­tor with an alarm is installed on each additional level of
the dwelling, building or structure served by the side wall
horizontal vented gas fueled equipment. It shall be the
responsibility of the property owner to secure the services
of qualifi ed licensed professionals for the installation of
hard wired carbon monoxide detectors.

In the event that the side wall horizontally vented gas fu­eled equipment is installed in a crawl space or an attic,
the hard wired carbon monoxide detector with alarm and
battery back-up may be installed on the next adjacent
fl oor level.
In the event that the requirements of this subdivision can
not be met at the time of completion of installation, the
owner shall have a period of thirty (30) days to comply
with the above requirements; provided, however, that dur­ing said thirty (30) day period, a battery operated carbon
monoxide detector with an alarm shall be installed.

Inspection

The state or local gas inspector of the side wall horizon-

tally vented gas fueled equipment shall not approve the

installation unless, upon inspection, the inspector ob-

serves carbon monoxide detectors and signage installed

in accordance with the provisions of 248 CMR 5.08(2)(a)1

through 4.

Exemptions

The following equipment is exempt from 248 CMR

5.08(2)(a)1 through 4:

• The equipment listed in Chapter 10 entitled “Equipment
Not Required To Be Vented” in the most current edition
of NFPA 54 as adopted by the Board; and

• Product Approved side wall horizontally vented gas fu­eled equipment installed in a room or structure separate
from the dwelling, building or structure used in whole or
in part for residential purposes.

MANUFACTURER REQUIREMENTS
Gas Equipment Venting System Provided

When the manufacturer of Product Approved side wall
horizontally vented gas equipment provides a venting
system design or venting system components with the
equipment, the instructions provided by the manufacturer
for installation of the equipment and the venting system
shall include:

• Detailed instructions for the installation of the venting
system design or the venting system components; and

• A complete parts list for the venting system design or
venting system.

Gas Equipment Venting System NOT Provided

When the manufacturer of a Product Approved side wall
horizontally vented gas fueled equipment does not pro­vide the parts for venting the fl ue gases, but identifi es
“special venting systems”, the following requirements
shall be satisfi ed by the manufacturer:

Approved Carbon Monoxide Detectors

Each carbon monoxide detector as required in accor­dance with the above provisions shall comply with NFPA
720 and be ANSI/UL 2034 listed and IAS certifi ed.

Signage

A metal or plastic identifi cation plate shall be permanent-
ly mounted to the exterior of the building at a minimum
height of eight (8) feet above grade directly in line with the
exhaust vent terminal for the horizontally vented gas fu­eled heating appliance or equipment. The sign shall read,
in print size no less than one-half (1/2) in. in size, “GAS

VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OB­STRUCTIONS”.

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/118

• The referenced “special venting system” instructions
shall be included with the appliance or equipment in­stallation instructions; and

• The “special venting systems” shall be Product Ap­proved by the Board, and the instructions for that sys­tem shall include a parts list and detailed installation
instructions.

A copy of all installation instructions for all Product Ap­proved side wall horizontally vented gas fueled equip­ment, all venting instructions, all parts lists for venting
instructions, and/or all venting design instructions shall
remain with the appliance or equipment at the completion
of the installation.

See Gas Connection section for additional Common­wealth of Massachusetts requirements.

2

2

Operating Instructions

User Guide

A. Gas Fireplace Safety

WARNING

HOT SURFACES!

Glass and other surfaces are hot during
operation AND cool down.

Hot glass will cause burns.

• DO NOT touch glass until it is cooled

• NEVER allow children to touch glass

• Keep children away

• CAREFULLY SUPERVISE children in same room as
fi replace.

• Alert children and adults to hazards of high temperatures.

High temperatures may ignite clothing or other
fl ammable materials.

• Keep clothing, furniture, draperies and other fl ammable
materials away.

This appliance has been supplied with an integral barrier
to prevent direct contact with the fi xed glass panel. DO
NOT operate the appliance with the barrier removed.

Contact your dealer or Hearth & Home Technologies if the
barrier is not present or help is needed to properly install one.

If you expect that small children or vulnerable adults may
come into contact with this fi replace, the following precau-
tions are recommended:

• Install a physical barrier such as:

- A decorative fi rescreen.

- Adjustable safety gate.

• Install a switch lock or a wall/remote control with child
protection lockout feature.

• Keep remote controls out of reach of children.

• Never leave children alone near a hot fi replace, whether
operating or cooling down.

• Teach children to NEVER touch the fi replace.

• Consider not using the fi replace when children will be
present.

Contact your dealer for more information, or visit: www.
hpba.org/safety-information.

T o prevent unintended operation when not using your fi re-
place for an extended period of time (summer months,
vacations, trips, etc):

• Remove batteries from remote controls.

• Turn off wall controls.

• Unplug 6 volt transformer plug and remove batteries on
IPI models.

• Turn off gas controls valve on standing pilot models.

When lighting the pilot light on fi replaces with a standing
pilot, remove the fi xed glass assembly so you can de-
tect presence of residual gas build-up. See Standing Pilot
Lighting instructions and Maintenance Tasks.

B. Your Fireplace

WARNING! DO NOT operate fi replace before read-
ing and understanding operating instructions. Failure

to operate fi replace according to operating instructions
could cause fi re or injury.

Figure 2.1 General Operating Parts

FAN KIT

SECTION 2.C.

DECORATIVE DOORS

(NOT SHOWN)

SECTION 2.E.

CLEAR SPACE

SECTION 2.D.

FIXED GLASS ASSEMBLY

(NOT SHOWN)
SECTION 14.H.

HEARTH

(not required)

SECTION 3.C.

GRATE

MANTEL

SECTION 5.D

9Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

C. Fan Kit (optional)

If desired, a fan kit may be added. Contact your dealer to
order the correct fan kit.

D. Clear Space

WARNING! DO NOT place combustible objects in front
of the fi replace or block louvers. High temperatures may
start a fi re. See Figure 2.2.

A void placing candles and other heat-sensitive objects on
mantel or hearth. Heat may damage these objects.

F. Fixed Glass Assembly

See Section 14.H.

G. Remote Controls, Wall Controls and Wall

Switches

Follow the instructions supplied with the control installed
to operate your fi replace:

For safety:

• Install a switch lock or a wall/remote control with child
protection lockout feature.

• Keep remote controls out of reach of children.

See your dealer if you have questions.

H. IPI Battery Tray/Battery Installation

The IntelliFire PlusTM system has a battery backup option.
Battery longevity and performance will be affected by the
service temperatures of this appliance.

NOTICE: Batteries should only be used as a power source
in the event of an emergency such as an outage.

3 FT. IN FRONT OF FIREPLACE

CLEAR SPACE

Figure 2.2 Clear Space

E. Decorative Doors and Fronts

WARNING! Risk of Fire! Install ONLY doors or fronts
approved by Hearth & Home Technologies. Unapproved
doors or fronts may cause fi replace to overheat.

This fireplace has been supplied with an integral
barrier to prevent direct contact with the fi xed glass
panel. DO NOT operate the fi replace with the barrier
removed.

Contact your dealer or Hearth & Home Technologies if
the barrier is not present or help is needed to properly
install one.

For more information refer to the instructions supplied with
your decorative door or front.

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1110

I. Control Module Operation

1. The control module has an ON/OFF/REMOTE selector
switch that must be set. See Figure 2.3.

OFF Position: Appliance will ignore all power inputs and

will not respond to any commands from a wall switch or
remote. The unit should be in the OFF position during
installation, service, battery installation, fuel conversion,
and in the event that the control goes into LOCK-OUT
mode as a result of an error code.

ON Position: Appliance will ignite and run continuously

in the HI fl ame setting, with no adjustment in fl ame
output. This mode of operation is primarily used for
initial installation or power outage operation with battery
backup.

REMOTE Position: Appliance will initiate commands

from an optional wired wall switch and/or the wireless
remote (RC300).

2. If using a wired wall switch with the module in REMOTE
mode, the fl ame output can be adjusted with the HI/LO
selector switch on the module. See Figure 2.3. Note
that the fl ame HI/LO selector switch will become inactive
once an optional remote control (RC200/RC300) is
programmed to the control module. Note that the control
module will always ignite the fi replace on HI and remain
so for the initial 10 seconds of operation. If the HI/LO
is switched to the LO position, the fl ame output will
automatically drop to the lowest setting after the fl ame
has been established for 10 sec. After this 10 second
period, the fl ame can be adjusted from HI to LO with
the switch.

3. The control module has safety feature that automatically
shuts down the fi replace after 9 hours of continuous
operation without receiving a command from the RC300
remote.

4. If you intend to use both an optional wired wall switch
and the RC300 remote control to operate your fi replace,
the wall switch will override any commands given by
the remote.

MODULE

SELECTOR

SWITCH

5. Module Reset
This module may lock-out under certain conditions.

When this occurs, the appliance will not ignite or
respond to commands. The module will go into lock-out
mode by emitting three audible beeps, then continuously
displaying a RED/GREEN error code at its status
indicator LED.

• Check battery tray. Remove batteries if installed.
Batteries should only be installed for use during power
outages. See Section H.

• Locate the module selector switch. (See Figure 2.3).

• Set the module selector switch to the OFF position.

• Wait fi ve (5) minutes to allow possible accumulated gas
to clear.

• Set the module selector switch to ON or REMOTE
position.

• Start the appliance.

WARNING! Risk of Explosion! DO NOT reset the mod­ule more than one time within a fi ve minute time period.
Gas may accumulate in fi rebox. Call a qualifi ed service
technician.

Nine Hour Safety Shutdown Feature

This appliance has a safety feature that automatically
shuts down the fi replace after 9 hours of continuous
operation without receiving a command from the
RC300 remote.

J. Before Lighting Fireplace

Before operating this fi replace for the fi rst time, have a
qualifi ed service technician:

• Verify all shipping materials have been removed from
inside and/or underneath the fi rebox.

• Review proper placement of logs, ember material and/
or other decorative materials.

• Ensure plastic fi nishing strips have been removed after
use for incorporating fi nishing materials.

• Check the wiring.

• Check the air shutter adjustment.

• Ensure that there are no gas leaks.

• Ensure that the glass is sealed and in the proper position
and that the integral barrier is in place.

WARNING! Risk of Fire or Asphyxiation! DO NOT op­erate fi replace with fi xed glass assembly removed.



WIRE LEAD FROM REGULATOR CONNECTS HERE

Figure 2.3 Control Module

NG/LP SETTING

11Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

K. Lighting Instructions (IPI)

FOR YOUR SAFETY

READ BEFORE LIGHTING

WARNING: If you do not follow these instructions exactly, a fi re or explosion

may result causing property damage, personal injury or loss of life.

A. This appliance is equipped with an

intermittent pilot ignition (IPI) device
which automatically lights the burn­er. DO NOT try to light the burner by
hand.

B. BEFORE LIGHTING, smell all around

the appliance area for gas. Be sure to
smell next to the fl oor because some
gas is heavier than air and will settle
on the fl oor.

WHA T TO DO IF YOU SMELL GAS

• DO NOT try to light any appliance.

• DO NOT touch any electric switch; do
not use any phone in your building.

WARNING:

DO NOT CONNECT LINE VOLT­AGE (110/120 VAC OR 220/240
V AC) TO THE CONTROL VALVE.

Improper installation, adjustment, al­teration, service or maintenance can
cause injury or property damage. Re­fer to the owner’s information manual
provided with this appliance.

This appliance needs fresh air for
safe operation and must be installed
so there are provisions for adequate
combustion and ventilation air.

If not installed, operated, and main­tained in accordance with the manufac­turer’s instructions, this product could
expose you to substances in fuel or
fuel combustion which are known to
the State of California to cause can­cer, birth defects, or other reproductive
harm.

Keep burner and control compartment
clean. See installation and operating
instructions accompanying appliance.

For additional information on operating your

Hearth & Home Technologies fi replace, please refer to www.fi replaces.com.

• Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.

• If you cannot reach your gas sup­plier, call the fi re department.

C. DO NOT use this appliance if any

part has been under water. Imme­diately call a qualifi ed service tech-
nician to inspect the appliance and
to replace any part of the control
system and any gas control which
has been under water.

CAUTION:

Hot while in operation. DO NOT touch.
Keep children, clothing, furniture, gaso­line and other liquids having fl ammable
vapors away.

DO NOT operate the appliance with
fi xed glass assembly removed, cracked
or broken. Replacement of the fi xed
glass assembly should be done by a
licensed or qualifi ed service person.

NOT FOR USE

WITH SOLID FUEL

For use with natural gas and propane.
A conversion kit, as supplied by the
manufacturer, shall be used to convert
this appliance to the alternate fuel.

Also Certifi ed for Installation in a
Bedroom or a Bedsitting Room.

For assistance or additional informa­tion, consult a qualifi ed installer, ser-
vice agency or the gas supplier.

LIGHTING

INSTRUCTIONS (IPI)

1. This appliance is equipped with an ignition

device which automatically lights the burner.

DO NOT try to light the burner by hand.

GAS

VALVE

2. Wait fi ve (5) minutes to clear out any gas.

Then smell for gas, including near the fl oor. If
you smell gas, STOP! Follow “B” in the Safety
Information located on the left side of this la­bel. If you do not smell gas, go to next step.

3. To light the burner:
Equipped with wall switch: Turn ON/OFF switch

to ON.

Equipped with remote or wall control: Press

ON or FLAME button.

Equipped with thermostat: Set temperature to

desired setting.

4. If the appliance does not light after three tries,
call your service technician or gas supplier.

TO TURN OFF

GAS TO APPLIANCE

1. Equipped with wall switch: Turn ON/OFF switch

to OFF.

Equipped with remote or wall control: Press

OFF button.

Equipped with thermostat: Set temperature to

lowest setting.

2. Service technician should turn off electric
power to the control when performing service.

593-913G

Final inspection by

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1112

L. After Fireplace is Lit

Initial Break-in Procedure

• The fireplace should be run three to four hours
continuously on high.

• Turn the fi replace off and allow it to completely cool.

• Remove fi xed glass assembly. See Section 14.H.

• Clean fi xed glass assembly. See Section 3.

• Replace the fi xed glass assembly and run continuously
on high an additional 12 hours.

This cures the materials used to manufacture the fi re-
place.

NOTICE! Open windows for air circulation during fi re-
place break-in.

• Some people may be sensitive to smoke and odors.

• Smoke detectors may activate.

M. Frequently Asked Questions

ISSUE SOLUTIONS

Condensation on the glass

Blue fl ames

Odor from appliance

Film on the glass

Metallic noise

Is it normal to see the pilot fl ame burn
continually?

This is a result of gas combustion and temperature variations. As the appliance warms, this
condensation will disappear.

This is a result of normal operation and the fl ames will begin to yellow as the appliance is al-
lowed to burn for 20 to 40 minutes.

When fi rst operated, this appliance may release an odor for the fi rst several hours. This is caused
by the curing of the paint and the burning off of any oils remaining from manufacturing. Odor may
also be released from fi nishing materials and adhesives used around the appliance.

This is a normal result of the curing process of the paint and logs. Glass should be cleaned
within 3 to 4 hours of initial burning to remove deposits left by oils from the manufacturing
process. A non-abrasive cleaner such as gas fi replace glass cleaner may be necessary. See
your dealer.

Noise is caused by metal expanding and contracting as it heats up and cools down, similar to
the sound produced by a furnace or heating duct. This noise does not affect the operation or
longevity of the appliance.

In an intermittent pilot ignition system (IPI), the pilot fl ame should turn off when appliance is
turned off. Some optional control systems available with IPI models may allow pilot fl ame to
remain lit. In a standing pilot system the pilot will always stay on.

13Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

3

3

Maintenance and Service

Any safety screen or guard removed for servicing must be
replaced prior to operating the fi replace.

When properly maintained, your fi replace will give you
many years of trouble-free service. We recommend an­nual service by a qualifi ed service technician.

A. Maintenance Tasks-Homeowner

Installation and repair should be done by a qualifi ed service
technician only. The fi replace should be inspected before
use and at least annually by a professional service person.

The following tasks may be performed annually by the
homeowner. If you are uncomfortable performing any of
the listed tasks, please call your dealer for a service ap­pointment.

More frequent cleaning may be required due to lint from
carpeting or other factors. Control compartment, burner
and circulating air passageway of the fi replace must be
kept clean.

CAUTION! Risk of Burns! The fi replace should be turned
off and cooled before servicing.

Glass Cleaning

Frequency: Seasonally
By: Homeowner
Tools Needed: Protective gloves, glass cleaner, drop

cloth and a stable work surface.

CAUTION! Handle fi xed glass assembly with care.

Glass is breakable.

• Avoid striking, scratching or slamming glass

• Avoid abrasive cleaners

• DO NOT clean glass while it is hot

• Prepare a work area large enough to accommodate fi xed
glass assembly and door frame by placing a drop cloth
on a fl at, stable surface.

Note: Fixed glass assembly and gasketing may have res­idue that can stain carpeting or fl oor surfaces.

• Remove door or decorative front from fi replace and set
aside on work surface.

• See Section 14.H for instructions to remove fi xed glass
assembly.

• Clean glass with a non-abrasive commercially available
cleaner.

- Light deposits: Use a soft cloth with soap and water

- Heavy deposits: Use commercial fireplace glass

cleaner (consult with your dealer)

• Carefully set fi xed glass assembly in place on fi replace.
Hold glass in place with one hand and secure glass
latches with the other hand.

• Reinstall door or decorative front.

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1114

Doors, Surrounds, Fronts

Frequency: Annually
By: Homeowner
Tools needed: Protective gloves, stable work surface

• Assess condition of screen and replace as necessary.

• Inspect for scratches, dents or other damage and repair
as necessary.

• Check that louvers are not blocked.

• Vacuum and dust surfaces.

Remote Control

Frequency: Seasonally
By: Homeowner
Tools needed: Replacement batteries and remote con-

trol instructions.

• Locate remote control transmitter and receiver.

• Verify operation of remote. Refer to remote control
operation instructions for proper calibration and setup
procedure.

• Place batteries as needed in remote transmitters and
battery-powered receivers.

• Place remote control out of reach of children.

If not using your fi replace for an extended period of time
(summer months, vacations/trips, etc), to prevent unin­tended operation:

• Remove batteries from remote controls.

• Unplug 6 volt transformer plug on IPI models.

• Unplug battery backup from control module.

Venting

Frequency: Seasonally
By: Homeowner
Tools needed: Protective gloves and safety glasses.

• Inspect venting and termination cap for blockage or
obstruction such plants, bird nests, leaves, snow, debris,
etc.

• Verify termination cap clearance to subsequent construc­tion (building additions, decks, fences, or sheds). See
Section 6.

• Inspect for corrosion or separation.

• Verify weather stripping, sealing and fl ashing remains
intact.

• Inspect draft shield to verify it is not damaged or missing.

B. Maintenance Tasks-Qualifi ed Service

Technician

The following tasks must be performed by a qualifi ed ser-
vice technician.

Gasket Seal and Glass Assembly Inspection

Frequency: Annually
By: Qualifi ed Service Technician
T ools needed: Protective gloves, drop cloth and a stable

work surface.

• Inspect gasket seal and its condition.

• Inspect fi xed glass assembly for scratches and nicks that
can lead to breakage when exposed to heat.

• Confi rm there is no damage to glass or glass frame.
Replace as necessary.

• Verify that fi xed glass assembly is properly retained and
attachment components are intact and not damaged.
Replace as necessary.

Logs

Frequency: Annually
By: Qualifi ed Service Technician
Tools needed: Protective gloves.

• Inspect for damaged or missing logs. Replace as neces­sary . Refer to Section 14 for log placement instructions.

• Verify correct log placement and no fl ame impingement
causing sooting. Correct as necessary.

Firebox

Frequency: Annually
By: Qualifi ed Service Technician
Tools needed: Protective gloves, sandpaper, steel wool,

cloths, mineral spirits, primer and touch-up paint.

• Inspect for paint condition, warped surfaces, corrosion
or perforation. Sand and repaint as necessary.

• Replace fi replace if fi rebox has been perforated.

Burner Ignition and Operation

Frequency: Annually
By: Qualifi ed Service Technician
T ools needed: Protective gloves, vacuum cleaner, whisk

broom, fl ashlight, voltmeter, indexed drill bit set, and a
manometer.

• Verify burner is properly secured and aligned with pilot
or igniter.

• Clean off burner top, inspect for plugged ports, corrosion
or deterioration. Replace burner if necessary.

• Replace Glowing embers with new dime-size pieces.
DO NOT block ports or obstruct lighting paths. Refer to
Section 14 for proper ember placement.

• Verify batteries have been removed from battery back­up IPI systems to prevent premature battery failure or
leaking.

• Check for smooth lighting and ignition carryover to all
ports. Verify that there is no ignition delay.

• Inspect for lifting or other fl ame problems.

• Verify air shutter setting is correct. See Section 14 for
required air shutter setting. Verify air shutter is clear of
dust and debris.

• Inspect orifi ce for soot, dirt and corrosion. Verify orifi ce
size is correct. See Service Parts List for proper orifi ce
sizing.

• Verify manifold and inlet pressures. Adjust regulator as
required.

• Inspect pilot fl ame pattern and strength. See Figure 3.1
for proper pilot fl ame pattern. Clean or replace orifi ce
spud as necessary.

• Inspect IPI fl ame sensing rod for soot, corrosion and
deterioration. Polish with fi ne steel wool or replace as
required.

• Verify that there is not a short in fl ame sense circuit
by checking continuity between pilot hood and fl ame
sensing rod. Replace pilot as necessary. (IPI only)



Control Compartment and Firebox Top

Frequency: Annually
By: Qualifi ed Service Technician
Tools needed: Protective gloves, vacuum cleaner, dust

cloths

• V acuum and wipe out dust, cobwebs, debris or pet hair.
Use caution when cleaning these areas. Screw tips that
have penetrated the sheet metal are sharp and should
be avoided.

• Remove all foreign objects.

• Verify unobstructed air circulation.

Figure 3.1 IPI Pilot Flame Patterns

15Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

C. Logs/Grate and Valve Assembly Removal

2 EXTRA
SCREWS TO BE
REMOVED FOR
CD4842IR-C

It may become necessary to remove the logs/grate and
valve assembly . This task should be performed by a quali­fi ed service technician. The base pan does not need to
be removed to service the burner assembly.

1. Remove the two top logs from the log/grate assembly.
These logs are not secured to the assembly with screws.
See Figure 3.2.

Figure 3.2 Remove Top Two Logs

2. Remove screw from each tab at the front of the log/grate
assembly that secures the assembly to the base pan.
See Figure 3.3

4. The standard metal refractory will have to be removed
in order to access the valve assembly. This is done by
removing 8 screws (10 screws for CD4842IR-C model).
There are 4 screws per side panel, Figure 3.5 shows
the 2 screws on the bottom of panels and Figure 3.6
shows the 2 screws on the top of the panels. The 2
other screws for CD4842IR-C models are located in
back wall of fi rebox as shown in Figure 3.7. One is up
by exhaust baffl e and the other is behind logs and near
fi replace bottom.

Figure 3.5 Bottom Screws For Metal Refractory

Figure 3.3 Remove Screws from Front Tab

3. Remove screws from log tabs on both ends of the rear
log and remove the log. See Figure 3.4.

Figure 3.4 Remove Screws from Log Tabs

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1116

Figure 3.6 Top Screws For Metal Refractory

2 EXTRA
SCREWS TO BE
REMOVED FOR
CD4842IR-C

Figure 3.7 CD4842IR-C Extra Metal Refractory Screws

5. Remove the two screws from the back corners of the
burner assembly. See Figure 3.8.

Figure 3.8 Remove Screws from Burner Assembly Rear Corners

6. Remove burner skirt by removing 4 screws. See Figure

3.9.

Figure 3.9 Remove Burner Skirt

7. Bend down grate tab at the right of burner assembly.
Assembly will slide out to the right. See Figure 3.10.

Figure 3.10 Grate Tab

Figure 3.11 Valve Assembly Removal

17Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

D. Burner Identifi cation/Verifi cation

The burner may be accessed for identifi cation and veri-
fi cation purposes. This task should be performed by a

qualifi ed service technician. Only the log/grate assembly
and burner skirt need to be removed in order to identify
burner. See Figure 3.12 for burner identifi cation chart.

CD4236IR-C (NG)

*

**

*

CD4236IR-C (LP)

***

LP

*

**

*

CNXT4236IH/T-C (NG & LP)

*

** **

*

CD4842IR-C (NG)

**

CD4842IR-C (LP)

***

LP

**

CNXT4836IH/T-C (NG & LP)

CD4236IR-C (NG)
CD4236IR-C (LP) X
CNXT4236IH/T-C (NG & LP)
CD4842IR-C (NG) X
CD4842IR-C (LP) X X
CNXT4842IH/T-C (NG & LP) X X

Figure 3.12 Burner identifi cation Examples

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1118

*Bottom left

feature determines

fireplace size

**Bottom right

feature determines

fireplace style

X

***LP stamp
determines gas type
(for CD models only)

HORIZONTAL

TERMINATION CAP

(SECTION 10.L )

4

4

A. Typical Appliance System

NOTICE: Illustrations and photos refl ect typical installations and are for design purposes only . Illustrations/diagrams are not
drawn to scale. Actual product may vary from pictures in manual

Getting Started

Note: Dual venting configurations
ARE NOT allowed. Appliance MUST

be vented EITHER vertically OR
horizontally.

VERTICAL TERMINATION CAP

(SECTION 10.I)

NON-COMBUSTIBLE ROOF FLASHING
MAINTAINS MINIMUM CLEARANCE
AROUND PIPE (SECTION 10.G)

STORM COLLAR
(SECTION 10.H)

Installer Guide

FRAMING/HEADER
(SECTION 5.B)

VENT PIPE (SECTIONS 7 and 8)

CEILING FIRESTOP
ON FLOOR OF ATTIC
(SECTION 8.C)

VENT PIPE PENETRATES ROOF
PREFERABLY WITHOUT AFFECTING
ROOF RAFTERS (SECTION 8.C)

ATTIC INSULATION SHIELD (NOT
SHOWN) MUST BE USED HERE TO
KEEP INSULATION AWAY FROM
VENT PIPE IF ATTIC IS INSULATED
(SECTION 8.D)

FRAMING HEADED OFF
IN CEILING JOISTS
(SECTION 8.C)

WALL SWITCH

(SECTION 12.C)

MANTEL AND
MANTEL LEG
(SECTION 5.D)

SURROUND

OPTIONAL

GAS LINE
(SECTION 11)

Figure 4.1 Typical System

HEARTH EXTENSION

(not required)

19Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

B. Design and Installation Considerations

Heatilator direct vent gas appliances are designed to op­erate with all combustion air siphoned from outside of the
building and all exhaust gases expelled to the outside. No
additional outside air source is required.

Installation MUST comply with local, regional, state and
national codes and regulations. Consult insurance carrier,
local building inspector, fi re offi cials or authorities having
jurisdiction over restrictions, installation inspection and
permits.

Before installing, determine the following:

• Where the appliance is to be installed.

• The vent system confi guration to be used.

• Gas supply piping requirements.

• Electrical wiring requirements.

• Framing and fi nishing details.

• Whether optional accessories—devices such as a fan,
wall switch, or remote control—are desired.

Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. For
assistance or additional information, consult a qualifi ed
service technician, service agency or your dealer.

C. Tools and Supplies Needed

Before beginning the installation be sure that the following
tools and building supplies are available.

Tape measure Framing material
Pliers Non-corrosive leak check solution
Hammer Phillips screwdriver
Gloves Framing square
Voltmeter Electric drill and bits (1/4 in.)
Plumb line Safety glasses
Level Reciprocating saw
Manometer Flat blade screwdriver
1/2 - 3/4 in. length, #6 or #8 Self-drilling screws
Caulking material (300ºF minimum continuous exposure

rating)
One 1/4 in. female connection (for optional fan).

D. Inspect Appliance and Components

• Carefully remove the appliance and components from
the packaging.

• The vent system components and decorative doors and
fronts may be shipped in separate packages.

• If packaged separately, the log set and appliance grate
must be installed.

• Report to your dealer any parts damaged in shipment,
particularly the condition of the glass.

• Read all of the instructions before starting the instal-

lation. Follow these instructions carefully during the
installation to ensure maximum safety and benefi t.

WARNING! Risk of Fire or Explosion! Damaged parts
could impair safe operation. DO NOT install damaged, in-
complete or substitute components. Keep appliance dry.

Hearth & Home T echnologies disclaims any responsibility for ,
and the warranty will be voided by, the following actions:

• Installation and use of any damaged appliance or vent

system component.

• Modifi cation of the appliance or vent system.

• Installation other than as instructed by Hearth & Home

Technologies.

• Improper positioning of the gas logs or the glass door.

• Installation and/or use of any component part not approved

by Hearth & Home Technologies.

Any such action may cause a fi re hazard.

WARNING! Risk of Fire, Explosion or Electric Shock!
DO NOT use this appliance if any part has been under

water. Call a qualifi ed service technician to inspect the
appliance and to replace any part of the control system
and/or gas control which has been under water.

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1120

5

5

Framing and Clearances

A. Selecting Appliance Location

When selecting a location for the appliance it is important to
consider the required clearances to walls (see Figure 5.1).

WARNING! Risk of Fire or Burns! Provide adequate
clearance around air openings and for service access.

Due to high temperatures, the appliance should be locat­ed out of traffi c and away from furniture and draperies.

NOTE: THE REAR STANDOFF MAY NEED

TO BE REMOVED WHEN VENTING AT 45º

A

1/2 IN.

G

ALCOVE

INSTALLATION

A

B

C

TOP VENT

ONE 90º ELBOW

NOTICE: Illustrations refl ect typical installations and are
FOR DESIGN PURPOSES ONLY. Illustrations/diagrams
are not drawn to scale. Actual installation may vary due to
individual design preference.

B

E

REAR VENT,

HORIZONTAL TERMINATION

TWO ELBOWS

B

D

H

D

ABCD E FGH I

CD4236 Series

CD4842 Series

Figure 5.1 Appliance Locations - CD Models

in. 51 42 72 56-5/8

mm 1295 1067 1829 1438 559 451 203 171

in. 55-7/8 49 79 61-1/2

mm 1419 1245 2007 1562 559 502 254 257

REAR VENT

NO ELBOWS

B

REAR VENT

ONE ELBOW

F

See Section D.

Mantel Projections

See Section D.

Mantel Projections

B

D

D

22 17-3/4 8 6-3/4

22 19-3/4 10 10-1/8

21Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

B. Constructing the Appliance Chase

A chase is a vertical box-like structure built to enclose the
gas appliance and/or its vent system. In cooler climates
the vent should be enclosed inside the chase.

NOTICE: Treatment of ceiling fi restops and wall shield
fi restops and construction of the chase may vary with the

type of building. These instructions are not substitutes
for the requirements of local building codes. Therefore,
you MUST check local building codes to determine the
requirements to these steps.

Chases should be constructed in the manner of all out­side walls of the home to prevent cold air drafting prob­lems. The chase should not break the outside building
envelope in any manner.

Walls, ceiling, base plate and cantilever fl oor of the chase
should be insulated. Vapor and air infi ltration barriers
should be installed in the chase as per regional codes for
the rest of the home. Additionally, in regions where cold
air infi ltration may be an issue, the inside surfaces may be
sheetrocked and taped for maximum air tightness.

To further prevent drafts, the wall shield and ceiling fi re-
stops should be caulked with caulk with a minimum of
300ºF continuous exposure rating to seal gaps. Gas line
holes and other openings should be caulked with caulk with
a minimum of 300ºF continuous exposure rating or stuffed
with unfaced insulation. If the appliance is being installed
on a cement surface, a layer of plywood may be placed
underneath to prevent conducting cold up into the room.

COMBUSTIBLE FLOORING MAY BE INSTALLED

NEXT TO THE FRONT OF THE APPLIANCE.

A

B

C

D

* MINIMUM FRAMING DIMENSIONS

A B C** D E F G H I J

Models

CD4236 Series

CD4842 Series

Rough

Opening

(Width)

in. 10 40-1/8 22 42 25 0 0 1/2 1/2 36

mm 254 1019 559 1067 635 0 0 13 13 914

in. 10 42-1/8 22 49 25 0 0 1/2 1/2 36

mm 254 1019 559 1245 635 0 0 13 13 914

* Adjust framing dimensions for interior sheathing (such as sheetrock)

C** Add 12 inches for rear venting with one 90º elbow.

Figure 5.2 Clearances to Combustibles

Rough

Opening

(Height)

Rough

Opening

(Depth)

Rough

Opening

(Width)

F

Clearance

to Ceiling

Combustible

Floor

J

G

Combustible

Flooring

Behind

Appliance

I

Sides of

Appliance

E

H

Front of

Appliance

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1122

C. Clearances

NOTICE: Install appliance on hard metal or wood surfaces
extending full width and depth. DO NOT install directly
on carpeting, vinyl, tile or any combustible material other
than wood.

WARNING! Risk of Fire! Maintain specifi ed air space
clearances to appliance and vent pipe:

• Insulation and other materials must be secured to prevent
accidental contact.

• The chase must be properly blocked to prevent blown
insulation or other combustibles from entering and
making contact with fi replace or chimney.

• Failure to maintain airspace may cause overheating and
a fi re.

D. Mantel and Wall Projections

WARNING! Risk of Fire! Comply with all minimum clear­ances as specifi ed. Framing or fi nishing material closer than
the minimums listed must be constructed entirely of noncom­bustible materials (i.e., steel studs, concrete board, etc).

Note: All
measurements
in inches.

2-1/2

12

11

10

9

8

7

6

5

4

3

12

11

10

5

15

14

13

18

16

TO CEILING

18

17

32

25

19

MEASUREMENTS FROM

TOP EDGE OF THE OPENING

Figure 5.3 Minimum Vertical and Maximum Horizontal

Dimensions

Mantel Legs or Wall Projections

Top of
Appliance

A

B

Perpendicular Wall

1 in. (25 mm) min.

A

to perpendicular wall
3-1/2 in. (89 mm) min.

B

from fireplace opening
to perpendicular wall

Mantel Leg or

Drywall

Figure 5.4 Mantel Leg or Wall Projections (Acceptable on both

sides of opening)

23Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

6

Termination Locations

6

A. Vent Termination Minimum Clearances

WARNING

Fire Risk.
Maintain vent clearance to combustibles as

specifi ed.

• DO NOT pack air space with insulation or other
materials.

Failure to keep insulation or other materials away
from vent pipe may cause overheating and fi re.

HORIZONTAL

OVERHANG

2 FT.
MIN.

GAS DIRECT VENT
TERMINATION CAP

20 INCHES MIN.

LOWEST

DISCHARGE

OPENING

H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING

X

12

ROOF PITCH

IS X/ 12

VERTICAL

WALL

6 in. (minimum) up to 20 in.

AB

152 mm/508 mm

20 in. and over 0 in. minimum

18 in. minimum

457 mm

Gas, Wood or Fuel Oil

Termination Cap

B

A *

Gas

Termination

Cap **

If using decorative cap cover(s), this distance may need to be

*

increased. Refer to the installation instructions supplied with the
decorative cap cover.

In a staggered installation with both gas and wood or fuel oil

**

terminations, the wood or fuel oil termination cap must be
higher than the gas termination cap.

Roof Pitch H (Min.) Ft.

Flat to 6/12...........................................................1.0*

Over 6/12 to 7/12 .................................................1.25*

Over 7/12 to 8/12 .................................................1.5*

Over 8/12 to 9/12 .................................................2.0*

Over 9/12 to 10/12 ...............................................2.5

Over 10/12 to 11/12 .............................................3.25

Over 11/12 to 12/12 .............................................4.0

Over 12/12 to 14/12 .............................................5.0

Over 14/12 to 16/12 .............................................6.0

Over 16/12 to 18/12 .............................................7.0

Over 18/12 to 20/12 .............................................7.5

Over 20/12 to 21/12 .............................................8.0

* 3 foot minimum in snow regions

Figure 6.1 Minimum Height From Roof To Lowest Discharge
Opening

Figure 6.2 Staggered Termination Caps

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1124

C

V

B

J

V

V

= VENT TERMINAL

X

= AIR SUPPLY INLET

B

D

V

V

B

V

A

= AREA WHERE TERMINAL IS NOT PERMITTED

A = 12 inches.................clearances above grade, veranda,

porch, deck or balcony

12 inches.................clearance to window or door that may

B =

be opened, or to permanently closed

window

C = 18 inches.................clearance below unventilated soffi t

18 inches.................clearance below ventilated soffi t

30

inches .................clearance below vinyl soffits and

electrical service

D = 9 inches...................clearance to outside corner

E = 6 inches...................clearance to inside corner

F = 3 ft. (Canada) ..........not to be installed above a gas me-

ter/regulator assembly within 3 feet
horizontally from the center-line of the
regulator

G = 3 ft ...........................clearance to gas service regulator

vent outlet
H = 9 inches (U.S.A)

12 inches (Canada). clearance to non-mechanical (unpow-

ered) air supply inlet, combustion air

inlet or direct-vent termination
i = 3 ft. (U.S.A.)

6 ft. (Canada) ...........clearance to a mechanical (powered)

air supply inlet

All mechanical air intakes within 10 feet of a termination cap
must be a minimum of 3 feet below termination.

J = 7 ft. ......................... On public property: clearance above

paved sidewalk or a paved driveway.

A vent shall not terminate directly above a sidewalk or paved
driveway which is located between two single family dwellings
and serves both dwellings.

K = 6 inches................. clearance from sides of electrical

service

L = 12 inches................ clearance above electrical service

Location of the vent termination must not interfere with access to the
electrical service.

M = 18 inches ....................clearance under veranda, porch, deck,

balcony or overhang

42

inches ................vinyl or composite overhang

Permitted when veranda, porch, deck or balcony is fully open
on a minimum of 2 sides beneath the fl oor.



Figure 6.3 Minimum Clearances for Termination

O

N

P

F

H or i

V

G

M

X

H

V

V

H

E

V

V

A

R

Q

V

L

K

Electrical

V

Service

K

V

C

V

Covered Alcove Applications

(Spaces open only on one side and with an overhang)

N = 6 inches ........... non-vinyl sidewalls

12 inches ......... vinyl sidewalls

O = 18 inches .........non-vinyl soffi t and overhang

42 inches ......... vinyl soffi t and overhang

P = 8 ft.

Q

MIN

1 cap 3 feet 2 x Q
2 caps 6 feet 1 x Q
3 caps 9 feet 2/3 x Q
4 caps 12 feet 1/2 x Q

Q

= # termination caps x 3 R

MIN

Measure vertical clearances from this surface.

Measure horizontal clearances from this surface.

= (2 / # termination caps) x Q

MAX

R

MAX

ACTUAL

ACTUAL

ACTUAL

ACTUAL

ACTUAL

CAUTION! Risk of Burns! Termination caps are HOT,
consider proximity to doors, traffi c areas or where people
may pass or gather (sidewalk, deck, patio, etc.). Listed cap
shields available. Contact your dealer.

• Local codes or regulations may require different
clearances.

• Vent system termination is NOT permitted in screened
porches.

• Vent system termination is permitted in porch areas with
two or more sides open.

• Hearth & Home Technologies assumes no responsibility
for the improper performance of the appliance when the
venting system does not meet these requirements.

• Vinyl protection kits are suggested for use with vinyl siding.

25Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

7

Vent Information and Diagrams

7

A. Approved Pipe

This appliance is approved for use with Hearth & Home
T echnologies DVP or SLP venting systems. Refer to Sec­tion 16B for vent component information.

DO NOT mix pipe, fi ttings or joining methods from differ-
ent manufacturers.

The pipe is tested to be run inside an enclosed wall.
There is no requirement for inspection openings at each
joint within the wall.

WARNING! Risk of Fire or Asphyxiation. This appli­ance requires a separate vent. DO NOT vent to a pipe
serving a separate solid fuel burning appliance.

Vertical

12 in.

8-1/2 in.

8-1/2 in.

B. Vent Table Key

The abbreviations listed in this vent table key are used in
the vent diagrams.

Symbol Description

V
V
H
H

First section (closest to appliance) of vertical length

1

Second section of vertical length

2

First section (closest to appliance) of horizontal length

1

Subsequent sections of horizontal length

2

C. Use of Elbows

Diagonal runs have both vertical and horizontal vent as­pects when calculating the effects. Use the rise for the
vertical aspect and the run for the horizontal aspect (see
Figure 7.1).

Two 45º elbows may be used in place of one 90º elbow.
On 45º runs, one foot of diagonal is equal to 8-1/2 in. (216
mm) horizontal run and 8-1/2 in. (216 mm) vertical run. A
length of straight pipe is allowed between two 45º elbows
(see Figure 7.1).

Horizontal

Figure 7.1

D. Measuring Standards

Vertical and horizontal measurements listed in the vent
diagrams were made using the following standards.

• Pipe measurements are shown using the effective length
of pipe (see Figure 7.2).

• Horizontal terminations are measured to the outside
mounting surface (fl ange of termination cap) (see Figure

6.3).

• Vertical terminations are measured to bottom of
termination cap.

• Horizontal pipe installed level with no rise.

Effective Length

Inches Millimeters

Effective

Height/Length

Pipe

DVP4 4 102

DVP6 6 152
DVP12 12 305
DVP24 24 610
DVP36 36 914
DVP48 48 1219
DVP6A 3 to 6 76 to 152

DVP12A 3 to 12 76 to 305
DVP12MI 3 to 12 76 to 305
DVP24MI 3 to 24 76 to 610

Figure 7.2 DVP Pipe Effective Length

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1126

E. Vent Diagrams

4 ft min.
(1.22 m)

Top Vent - Horizontal Termination

Note: The CD series fi replaces can adapt to SLP series

vent pipe, if desired.

When venting off the top of the unit, use a DVP-2SL adapter
and a minimum 48 inch vertical section of SLP series vent
pipe.

A DVP-SLP24 adapter may also be used with a 24 inch
vertical section of SLP series vent pipe.

After the 48 inch vertical section, the venting table rules
must be followed. The fi rst 48 inch vertical section is NOT
counted as part of the vertical components in the table. It is
still counted as part of the overall maximum run. All venting
table rules for the vent run must still be followed.

20 ft max.

(6.10 m)

Top Vent—Horizontal Termination—Two 45º Elbows
Installation requirements to replace the fi rst 90º elbow

with two 45º elbows:

Figure 7.3

Example: DVP pipe 3 ft. min. vertical = 11 ft. max. horizontal

SLP pipe 7 ft. min. vertical = 11 ft. max. horizontal

WARNING

Fire Risk. Explosion Risk.
Do NOT pack insulation or other combustibles

between ceiling fi restops.

• ALW A YS maintain specifi ed clearances around
venting and fi restop systems.

• Install wall shield and ceiling fi restops as speci-
fi ed.

Failure to keep insulation or other material away
from vent pipe may cause fi re.

WARNING

Fire Risk.

• When using DVP-HRC-SS and DVP-HRC-ZC­SS termination caps on top vented fi replaces, a
6 inch minimum vertical vent section is required
before installing fi rst elbow.

27Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

Top Vent - Horizontal Termination
One Elbow

V1 Minimum H1 Maximum

Elbow only 2 ft 610 mm

1/2 ft. 152 mm 6 ft. 1.8 m

1 ft. 305 mm 11 ft. 3.4 m

1-1/2 ft. 457 mm 18 ft. 5.5 m

V

1

H

1

2 ft. 610 mm 25 ft. 7.6 m

+ H1 = 40 ft. (12.2 m) Maximum

V

1

H1 = 25 ft. (7.6 m) Maximum

Note: For corner installations: A 6 inch (152
mm) section of straight pipe may need to
be attached to the appliance before a 90º
elbow, to allow the vent pipe to clear the top
standoffs.

Figure 7.4

Two Elbows

V1 Minimum H1 + H2 Maximum

Note: For corner installations: A 6 inch

(152 mm) section of straight pipe may
need to be attached to the appliance
before a 90º elbow, to allow the vent
pipe to clear the top standoffs.

Elbow only 2 ft 610 mm

1/2 ft. 152 mm 6 ft. 1.8 m

1 ft. 305 mm 11 ft. 3.4 m

1-1/2 ft. 457 mm 18 ft. 5.5 m

2 ft. 610 mm 25 ft. 7.6 m

+ H1 + H2 = 40 ft. (12.2 m) Maximum

V

1

H1 + H2 = 25 ft. (7.6 m) Maximum

V

H

2

INSTALLED

HORIZONTALLY

H

1

1

Figure 7.5

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1128

Top Vent - Horizontal Termination - (continued)

Three Elbows

V1 Min. H1 Max. V2 Min. H2 Max.

Elbow only 2 ft. 610 mm 0 in. 0 mm 1 ft. 305 mm

6 in. 152 mm 3 ft 914 mm 6 in. 152 mm 2 ft. 610 mm

1 ft. 305 mm 6 ft. 1.8 m 1 ft. 305 mm 6 ft. 1.8 m
2 ft. 610 mm 11 ft.* 3.4 m* 2 ft. 610 mm 10 ft.* 3.1 m*
3 ft. 914 mm 16 ft * 4.9 m* 3 ft. 914 mm 14 ft.* 4.3 m*

*H

+ H2 = 20 ft. (6.1 m) Maximum V1 + V2 + H1 + H2 = 40 ft. (12.2 m) Maximum

1

H

2

V

2

V

H

1

1

Figure 7.6

29Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

Top Vent - Vertical Termination

Flue Restrictor Instructions

No Elbow

V1 = 60 ft. Max. (18.3 m)

V1 = 3 ft. Min. (914 mm)

Note: If installing a vertical vent/

termination off the top of the ap­pliance, the fl ue restrictor should
be used.

1. Remove exhaust shield using a 1/4 inch nut driver by
removing the four screws securing it in place (see Figure

7.8).

EXHAUST

SHIELD

FLUE

RESTRICTOR

Figure 7.8

2. Break the fl ue restrictor into two pieces. Do this by
bending the part back and forth until it breaks (see

V

1

Figure 7.9).

BREAK

HERE

Figure 7.9 Flue Restrictor

Figure 7.7

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1130

H

1

V

1

V

2

Top Vent - Vertical Termination (continued)

3. Match the amount of vertical you have in the system
with the chart to fi nd the appropriate position to set the
Flue Restrictor (see Figure 7.10).

4. Center the Flue Restrictor on vent and secure in place
by using two self-tapping screws (see Figure 7.8 and
Figure 7.11).

5. Reinstall the Exhaust Shield.

Vertical

4 ft. 1-1

8 ft. 2-2 1-2 1-1

TOP VENT REAR VENT

NG LP NG LP

No

RestrictorNoRestrictorNoRestrictor

No

Restrictor
15 ft. 3-3 3-2 2-2 1-2
20 ft. 3-4 3-3 3-3 2-3
25 ft. 3-4 3-3 3-3 2-3
30 ft. 4-4 3-4 3-4 3-3
35 ft. 4-4 3-4 3-4 3-3
40 ft. 4-4 4-4 4-4 3-4

50 ft.+ 4-4 4-4 4-4 4-4

Figure 7.10

Note: If the DVP-2SL or DVP-SLP24 adapter is used with

SLP pipe, you MUST subtract one number from the table
above.

Example: Top vent 40 ft vertical with DVP pipe = 4-4

Top vent 40 ft vertical with SLP pipe = 3-3

Two Elbows

1 2 3 4 5

SETTING

1 2 3 4 5

Figure 7.11

V1 H

Maximum V2V1 + V2 Min.

1

Elbow only 2 ft. 610 mm * * *

6 in. 152 mm 6 ft. 1.8 m * * *

2 ft. 610 mm 11 ft. 3.4 m * * *
3 ft. 914 mm 16 ft. 4.9 m * * *
4 ft. 1.2 m 20 ft. 6.1 m * * *

Figure 7.12

+ V2 + H1 = 60 ft. (18.3 m) Maximum

V

1

*No specifi c restrictions on this value EXCEPT

+ V2 + H1 cannot exceed 60 ft (15.2 m)

V

1

31Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

Top Vent - Vertical Termination - (continued)

Three Elbows

V

1

H1 + H

2

V2V1 + V2 Minimum H1 + H2 Maximum

Elbow only 1 ft. 305 mm * * * 1 ft. 305 mm

6 in. 152 mm 2 ft. 610 mm * * * 2 ft. 610 mm

1 ft. 305 mm 2 ft. 610 mm * * * 2 ft. 610 mm
2 ft. 610 mm 4 ft. 1.2 m * * * 4 ft. 1.2 m
3 ft. 914 mm 9 ft. 2.7 m * * * 9 ft. 2.7 m
4 ft. 1.2 m 18 ft. 5.5 m * * * 18 ft. 5.5 m

H

+ H2 = 20 ft. (6.1 m) Maximum V1 + V2 + H1 + H2 = 60 ft. (18.3 m) Maximum

1

V

2

Figure 7.13

H

1

H

2

INSTALLED

HORIZONTALLY

V

1

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1132

Rear Vent - Horizontal Termination

No Elbow

Figure 7.14

H1 = 18 in. (457 mm) Maximum

H

1

One 45º Elbow

H1= 12 in. (305 mm) Maximum CD4236IR
H1= 15 in. (381 mm) Maximum CD4842IR

H

1

Figure 7.15

33Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

Rear Vent - Horizontal Termination - (continued)

Two Elbows

H

H1 Maximum V1 Minimum H

1 ft. 305 mm

Back to Back

90º Elbows

1 ft. 305 mm 2 ft. 610 mm

2

H1 + H2 Maximum

2 ft. 610 mm 6 in. 152 mm 2 ft. 610 mm 4 ft. 1.2 m
3 ft. 914 mm 1 ft. 305 mm 2 ft. 610 mm 5 ft. 1.5 m
3 ft. 914 mm 2 ft. 610 mm 4 ft. 1.2 m 7 ft. 2.1 m
3 ft. 914 mm 3 ft. 914 mm 9 ft. 2.7 m 12 ft. 3.7 m
3 ft. 914 mm 4 ft 1.2 m 17 ft. 5.2 m 20 ft.* 6.1 m*

V

+ H1 + H2 = 40 ft. (12.2 m) Maximum H1 = 3 ft. (914 mm) Maximum

1

V

2

1

*H1 + H2 = 20 ft (6.1 m) Maximum

H

1

Figure 7.16

Three Elbows

INSTALLED

HORIZONTALLY

H

3

H1 Maximum V1 Minimum H2+ H

1 ft. 305 mm

Back to Back

90º Elbows

1 ft. 305 mm 2 ft. 610 mm

3

H1+ H2+ H3 Max.

2 ft. 610 mm 6 in. 152 mm 1.5 ft. 457 mm 3.5 ft. 1.1 m
3 ft. 914 mm 1 ft. 305 mm 2 ft. 610 mm 5 ft. 1.5 m
3 ft. 914 mm 2 ft. 610 mm 4 ft. 1.2 m 7 ft. 2.1 m
3 ft. 914 mm 3 ft. 914 mm 9 ft. 2.7 m 12 ft. 3.7 m
3 ft. 914 mm 4 ft. 1.2 m 12 ft. 3.7 m 15 ft. 4.6 m
V

+ H1+ H2+ H3= 40 ft. (12.2 m) Maximum H1= 3 ft. (914 mm) Maximum

1

H

2

H1+ H2+ H3= 20 ft. (6.1 m) Maximum

V

1

Figure 7.17

H

1

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1134

Rear Vent - Vertical Termination

One Elbow

V

Figure 7.18

V1 Minimum H1 Maximum

6 in. 152 mm 2 ft. 610 mm

1 ft. 305 mm 3 ft. 914 mm
2 ft. 610 mm 5 ft. 1.5 m
3 ft. 914 mm 7 ft. 2.1 m
4 ft. 1.2 m 8 ft. 2.4 m
5 ft. 1.5 m 8 ft. 2.4 m

V

+ H1 = 40 ft. (12.2 m) Maximum

1

H1 = 8 ft. (2.4 m) Maximum

1

H

1

Two Elbows

V1 Minimum H1 + H2 Maximum

Back to Back 90º Elbows 3 ft. 914 mm

2 ft. 610 mm 6 ft. 1.8 m
4 ft. 1.2 m

9 ft. 2.7 m
6 ft. 1.8 m 12 ft. 3.7 m
8 ft. 2.4 m 15 ft. 4.6 m

V

+ H1 = 40 ft. (12.2 m) Maximum

1

H1 + H2 = 8 ft. (2.4 m) Maximum

V

1

INSTALLED

HORIZONTALLY

H

1

Figure 7.19

H

2

35Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

Rear Vent - Vertical Termination - (continued)

Three Elbows

H1 Maximum V1 Minimum H

2 ft. 610 mm 6 in. 152 mm 2 ft.

2

610
mm

H1 + H2 Maximum

4 ft. 1.2 m

3 ft. 914 mm 1 ft. 305 mm 4 ft. 1.2 m 7 ft. 2.1 m
5 ft. 1.5 m 2 ft. 610 mm 6 ft. 1.8 m 11 ft. 3.4 m

V

2

7 ft. 2.1 m 3 ft. 914 mm 8 ft. 2.4 m 15 ft. 4.6 m

8 ft 2.4 m 4 ft. 1.2 m 10 ft. 3.1 m 18 ft. 5.5 m

= 8 ft (2.4 m) Max. V1 + V2 + H1 + H2= 40 ft (12.2 m) Max.

H

1

H1 + H2 = 20 ft (6.1 m) Max.

H

2

V

1

Figure 7.20

Three Elbows

H

H

1

H1H2H

V1 Minimum H1 + H2 + H3 Maximum

3

*** 8 ft. 2.4 m 6 ft. 1.8 m
*** 9 ft. 2.7 m 7 ft. 2.1 m
***10 ft. 3.1 m 8 ft. 2.4 m
***10 ft. 3.1 m 8 ft. 2.4 m

+ H1 + H2 + H3 = 40 ft. (12.2 m) Maximum

V

V

1

1

*No specifi c restrictions on this value EXCEPT

V1 + H1 + H2 + H3 cannot exceed 40 ft. (12.2 m) Maximum

H1 + H2 + H3 = 8 ft. (2.4 m) Maximum

3

H

1

Figure 7.21

INSTALLED

HORIZONTALLY

H

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1136

2

8

8

Vent Clearances and Framing

A. Pipe Clearances to Combustibles

WARNING! Risk of Fire! Maintain air space clearance to
vent. DO NOT pack insulation or other combustibles:

• Between ceiling fi restops

• Between wall shield fi restops

• Around vent system
Failure to keep insulation or other material away from

vent pipe may cause over heating and fi re.

Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm).

• DVP heat shield - designed to be used on a wall 4 in. to 7-1/4 in. (102 mm to 184
mm) thick.

• If wall thickness is less than 4 in. the existing heat shields must be field trimmed. If
wall thickness is greater than 7-1/4 in. a DVP-HSM-B will be required.

• SLP heat shield - designed to be used on a wall 4-3/8 in. to 7-5/8 in. (111 mm to
194 mm thick).

• If wall thickness is less than 4-3/8 the existing heat shields must be field trimmed.
If wall thickness is greater than 7-5/8 in. a DVP-HSM-B will be required.

(DVP-SLP Pipe Shown)

3 in. (76 mm)
top clearance

1 in. (25 mm)
clearance around
vertical sections

Heat
Shield

Wall

Shield

Firestop

3 in. (76 mm)
top clearance *

Heat
Shield

1 in. (25 mm)
clearance
bottom & sides

B. Wall Penetration Framing

Combustible Wall Penetration

Whenever a combustible wall is penetrated, you must
frame a hole for the wall shield fi restop(s). The wall shield
fi restop maintains minimum clearances and prevents cold
air infi ltration.

• The opening must be framed on all four sides using the
same size framing materials as those used in the wall
construction.

• SLP pipe - A wall shield fi restop must be placed on each
side of an interior wall. A minimum 1-1/2 in. (38 mm)
overlap of attached heat shields must be maintained.

• DVP pipe - A wall shield fi restop is required on one side
only on interior walls. If your local inspector requires a
wall shield fi restop on both sides, then both wall shield
fi restops must have a heat shield (refer to Section 16.B.)
attached to them.

• See Section 10.L. for information for regarding the in­stallation of a horizontal termination cap.

Non-Combustible Wall Penetration

If the hole being penetrated is surrounded by noncom­bustible materials such as concrete, a hole with diameter
one inch greater than the pipe is acceptable.

Whenever a non-combustible wall is penetrated, the wall
shield fi restop is only required on one side and no heat
shield is necessary.

WALL

Heat
Shield

Wall

Shield

Firestop

WALL

* When using SLP or SL-D pipe, minimum clearances from the vent pipe to combus-

tible materials at inside wall firestops are: Top: 2-1/2 in. (64 mm)
Bottom: 1/2 in. (13 mm)
Sides: 1 in. (25 mm)

Figure 8.1 Horizontal Venting Clearances To Combustible
Materials

3 in. (76 mm)
top clearance *

Heat
Shield

1 in. (25 mm)
clearance
bottom & sides

10 in.

10 in.

A*

B*

CD4236

CD4842

* Shows center of vent framing hole for top or rear venting. The center of the

hole is one (1) in. (25.4 mm) above the center of the horizontal vent pipe.

Figure 8.2 Wall Penetration

in. 42-3/4 27-7/8 41-3/4 26-7/8

mm 1086 708 1060 683

in. 44-3/4 29-7/8 44-1/8 28-7/8

mm 1137 759 1111 733

12 in.

C

D

12 in.

A* B* C D

37Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

C. Install the Ceiling Firestop

A ceiling fi restop MUST be used between
fl oors and attics.

• DVP pipe only - Frame an opening 10 in.
by 10 in. (254 mm by 254 mm) whenever
the vent penetrates a ceiling/fl oor (see
Figure 8.3).

• SLP pipe only - Frame opening 9 in. x 9
in. (229 mm x 229 mm) whenever the vent
penetrates a ceiling/fl oor (see Figure 8.3).

• Frame the area with the same sized lumber
as used in ceiling/fl oor joist.

• The ceiling fi restop may be installed above or
below the ceiling joists when installed with a
attic insulation shield. It must be under joists
between fl oors that are not insulated. Refer
to Figure 8.4.

• Secure with three fasteners on each side.

WARNING! Risk of Fire! DO NOT pack insu-

lation around the vent. Insulation must be kept
back from the pipe to prevent overheating.

ATTIC ABOVE

A

A

Figure 8.3 Installing Ceiling Firestop

INSTALL ATTIC INSULATION SHIELDS

BEFORE OR AFTER INSTALLATION OF VENT SYSTEM

PIPE
DVP
SLP

A

10 in. (254 mm)

9 in. (229 mm)

3 FASTENERS

PER SIDE

CEILING FIRESTOP

INSTALLED BELOW CEILING

Figure 8.4 Installing the Attic Shield

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1138

CEILING FIRESTOP

INSTALLED ABOVE CEILING

D. Install Attic Insulation Shield

WARNING! Fire Risk. DO NOT allow loose materials or
insulation to touch vent. Hearth & Home Technologies
Inc. requires the use of an attic shield.

The National Fuel Gas Code ANSI Z223.1 and NFPA 54
requires an attic shield constructed of 26 gauge minimum
metal that extends at least 2 in. (51 mm) above insulation.

Attic shields must meet specifi ed clearance and be se-
cured in place.

Flat Ceiling Installation

• Remove one shield from box.

NOTICE: Cut previously installed batt insulation to make
room for the attic insulation shield.

• Wrap shield around pipe if pipe is already installed in
area to be insulated.

• Match the three holes in each side and fasten with three
screws to form a tube.

• Bend three tabs on the bottom of the shield outward to
allow attachment to the ceiling fi restop.

• Bend the remaining bottom tabs inward 90º to maintain
the air space between the pipe and the shield. Set the
shield on the ceiling fi restop and attach to the fi restop.

• Bend all tabs inward 90º around the top of the shield.
These tabs must be used to prevent blown insulation
from getting between the shield and vent pipe, and to
maintain air space clearance.

Vaulted Ceiling Installation

• Remove one shield from box.

NOTICE: Cut previously installed batt insulation to make
room for the attic insulation shield.

• Cut the attic insulation shield (if application is for vaulted
ceiling) to fi t your ceiling pitch. Snip cut edge to recreate
1 in. bend tabs all the way around the bottom.

• Wrap shield around pipe if pipe is already installed in
area to be insulated.

• Match the three holes in each side and fasten with three
screws to form a tube.

• Bend three tabs on the bottom of the shield outward to
allow attachment to the ceiling fi restop.

• Bend the remaining bottom tabs inward 90º to maintain
the air space between the pipe and the shield. Set the
shield on the ceiling fi restop and attach to the fi restop.

• Bend all tabs inward 90º around the top of the shield.
These tabs must be used to prevent blown insulation
from getting between the shield and vent pipe, and to
maintain air space clearance.

BEND ALL TABS INWARD 90°
TO MAINTAIN CLEARANCE
AND PREVENT INSULATION
FROM FALLING INSIDE

BEND 3 TABS
OUTWARD TO
FASTEN TO CEILING
FIRESTOP-BEND
REMAINING TABS
INWARD 90 DEGREES
TO MAINTAIN

INSERT 3
SCREWS

Figure 8.5 Attic Insulation Shield

CLEARANCE

E. Installing the Optional Heat-Zone® Gas Kit

• Remove the knockout from the fi replace and discard it
(see Figure 8.6).

• Center the duct collar around the exposed hole and
attach it to the fi replace with 3 screws. Note: Do this
BEFORE fi nal positioning of fi replace.

• Determine the location for the air register/fan housing
assembly.

Reference the Heat-Zone® Gas kit instructions for the
remaining installation steps.

HEAT-ZONE® GAS
ATTACHES HERE

Figure 8.6 Heat-Zone® Cover Plate





39Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

9

Appliance Preparation

9

A. Top Vent

CAUTION! Risk of Cuts, Abrasions or Flying Debris.

Wear protective gloves and safety glasses during instal­lation. Sheet metal edges are sharp.

NOTICE: Once appliance is set up for top or rear venting,
it CANNOT be changed at a later time.

Figure 9.1 Cut the seal cap strap across the rectangles
next to the disk. For rear vent, skip this step.

NOTICE: Once the seal cap has been removed it CANNOT
be reattached.

Figure 9.4 Remove the insulation basket and white insu­lation from the center vent pipe.

Figure 9.2 Remove the white gasket material covering
the seal cap.

Figure 9.3 Remove the seal cap.

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1140

Figure 9.5 Remove the insulation from the outer vent
pipe. For rear venting there is no insulation in the outer
vent pipe.

Figure 9.6 To attach the fi rst section of vent pipe, make
sure to use the fi berglass gasket in the manual bag to seal
between the fi rst vent component and the outer fi replace
wrap. Use 2 self tapping screws to secure the gasket to
the outer wrap.

Secure the fi rst section of venting to the fi replace by screw-
ing through the two straps left over from cutting the seal
cap strap in step 2.

B. Rear Vent

CAUTION! Risk of Cuts, Abrasions or Flying Debris.

Wear protective gloves and safety glasses during instal­lation. Sheet metal edges are sharp.

NOTICE: Once appliance is set up for top or rear venting,
it CANNOT be changed at a later time.

Figure 9.9 Fold the center parts of the retaining band out
and use to remove the seal cap.

NOTICE: Once the seal cap has been removed it CANNOT
be reattached.

Figure 9.7 Fold the tabs toward the center of the seal cap
(90º) and remove the insulation gasket.

Figure 9.8 Cut the metal retaining band and fold the
sides out.

Figure 9.10 Discard the vent cap, remove and discard the
insulation basket.

41Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

HEADER

Figure 9.11 Attach the fi rst vent section (it will snap into

place). Slide the insulation gasket onto the vent section,
up against the appliance and over the tabs.

C. Installing the Non-combustible Board

The factory supplied non-combustible board spans the dis­tance from the top of the fi replace to the center of the framing
header. This board must be used. See Figure 9.12.

• Keep nailing tabs fl ush with the framing.

• Level the appliance from side to side and front to back.

• “Square” the unit by securing diagonal dimensions to
within 1/4 inch of each other. See Figure 9.13.

• Shim the appliance as necessary. It is acceptable to use
wood shims underneath the appliance.

• Secure the appliance to the framing by using nails or
screws through the nailing tabs.

• Secure the appliance to the fl oor by inserting two screws
through the pilot holes at the bottom of the appliance.

A

B

HEADER

Figure 9.12 Non-combustible Board

D. Securing and Leveling the Appliance

WARNING! Risk of Fire! Prevent contact with:

• Sagging or loose insulation

• Insulation backing or plastic

• Framing and other combustible materials
Block openings into the chase to prevent entry of blown-

in insulation. Make sure insulation and other materials
are secured.

DO NOT notch the framing around the appliance
standoffs.

Failure to maintain air space clearance may cause
overheating and fi re.

The diagram shows how to properly position and secure
the appliance (see Figure 9.15). Nailing tabs are provided
to secure the appliance to the framing members.

• Bend out nailing tabs on each side.

• Place the appliance into position.

Note: Diagonal dimensions (A) and (B) must be within

1/4 inch of each other.

Figure 9.13 Positioning the Appliance Squarely

NAILING TABS

(BOTH SIDES)

PILOT HOLES

Figure 9.14 Proper Positioning and Securing of an Appliance

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1142

10

10

Lances

Installing Vent Pipe (DVP and SLP Pipe)

A. Assemble Vent Sections (DVP Pipe Only)

Attach Vent to the Firebox Assembly

Note: The end of the pipe sections with the lanced tabs will face

toward the appliance.

Attach the fi rst pipe section to the starting collar:

• Lanced pipe end to the starting collar

• Inner pipe over inner collar

• Push the pipe section until all lanced tabs snap in place

• Lightly tug on pipe to confi rm it has locked.

Commercial, Multi-family (Multi-level exceeding two sto­ries), or High-Rise Applications

All outer pipe joints must be sealed with silicone with a
minimum of 300ºF continuous exposure rating, including
the slip section that connects directly to the horizontal ter­mination cap.

• Apply a bead of silicone sealant inside the female outer
pipe joint prior to joining sections. See Figure 10.1

• Only outer pipes need to be sealed. All unit collar, pipe,
slip section, elbow and cap outer fl ues shall be sealed
in this manner, unless otherwise stated.

Figure 10.1 High Temperature Silicone Sealant

A

Lances

WARNING! Risk of Fire or Explosion! DO NOT break
silicone seals on slip sections. Use care when remov­ing termination cap from slip pipe. If slip section seals
are broken during removal of the termination cap, vent
may leak.

Assemble Pipe Sections

Per Figure 10.2:

• Start the inner pipe on the lanced end of section A into
the fl ared end of section B.

• Start the outer pipe of section A over the outer pipe of
section B.

• Once both vents sections are started, push fi rmly until
all lanced tabs lock into place.

• Lightly tug on the pipe to confi rm the tabs have locked.

It is acceptable to use screws no longer than 1/2 in. (13
mm) to hold outer pipe sections together. If predrilling holes,
DO NOT penetrate inner pipe.

For 90º and 45º elbows that are changing the vent direction
from horizontal to vertical, one screw minimum should be
put in the outer fl ue at the horizontal elbow joint to prevent
the elbow from rotating. Use screws no longer than 1/2
in. (13 mm). If predrilling screw holes, DO NOT penetrate
inner pipe.

B

Figure 10.2

Note: Make sure that the seams are not aligned to prevent

unintentional disconnection.

CORRECT

Figure 10.3

Figure 10.4 Seams

INCORRECT

43Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

B. Assemble Vent Sections (SLP Pipe Only)

Pilot hole

To attach the fi rst vent component to the starting collars
of the appliance:

• Attach a DVP-2SL or DVP-SLP24 adapter to the starting
collar of the appliance.

• Lock the vent components into place by sliding the pipe
section onto the collar.

• Align the seam of the pipe and seam of collar to allow
engagement. Rotate the vent component to lock into
place. Use this procedure for all vent components. See
Figure 10.5.

• Slide the gasket over the fi rst vent section and place it
fl ush to the appliance. This will prevent cold air infi ltration.
Caulk with a minimum of 300ºF continuous exposure
rating may be used to hold the part in place.

• Continue adding vent components, locking each
succeeding component into place.

• Ensure that each succeeding vent component is securely
fi tted and locked into the preceding component.

Commercial, Multi-family (Multi-level exceeding two sto­ries), or High-Rise Applications

For Installation into a commercial, multi-family (multi-level
exceeding two stories) or high-rise applications: All outer
pipe joints must be sealed with silicone with a minimum of
300ºF continuous exposure rating, including the slip sec­tion that connects directly to the horizontal termination
cap.

• Apply a bead of silicone sealant inside the female outer
pipe joint prior to joining sections. See Figure 10.1.

• Only outer pipes need to be sealed. All unit collar, pipe,
slip section, elbow and cap outer fl ues shall be sealed
in this manner, unless otherwise stated.

WARNING! Risk of Fire or Explosion! DO NOT break
silicone seals on slip sections. Use care when remov­ing termination cap from slip pipe. If slip section seals
are broken during removal of the termination cap, vent
may leak.

C. Assemble Slip Sections

• Slide the inner fl ue of the slip section into the inner fl ue of
the pipe section and the outer fl ue of the slip section over
the outer fl ue of the pipe section. See Figure 10.6.

• Slide together to the desired length.

Pilot hole

Figure 10.6 Slip Section Pilot Holes

• Maintain a 1-1/2 in. (38 mm) overlap between the slip
section and the pipe section.

• Secure the pipe and slip section with two screws no
longer than 1/2 in. (13 mm), using the pilot holes in the
slip section. See Figure 10.7.

Figure 10.7 Screws into Slip Section

• Continue adding pipe as necessary following instructions
in “Assembling Pipe Sections.”

NOTICE: If slip section is too long, the inner and outer fl ues
of the slip section can be cut to the desired length.

Note: Align seams to engage pipe,
then rotate counterclockwise to lock

Figure 10.5 Adding Venting Components

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1144

NOTICE: When installing a vent system with an HRC
termination cap, all pipe system joints shall be sealed using
a high temperature silicone sealant.

• Apply a bead of silicone sealant inside the female outer
pipe joint prior to joining sections.

• Only outer pipes are sealed, sealing the inner fl ue is not
required.

• All unit collar, pipe, slip section, elbow and cap outer
fl ues shall be sealed.

D. Secure the Vent Sections

• Vertical runs of DVP pipe must be supported every 8 ft.
(2.44 m) after the 25 ft. (7.62 m) maximum unsupported
rise.

• Vertical runs of SLP pipe must be supported every 8 ft.
(2.44 m).

• Horizontal sections must be supported every 5 feet
(1.52 m).

• Vent supports or plumbers strap (spaced 120º apart)
may be used to support vent sections. See Figures 10.8
and 10.9.

• Wall shield fi restops may be used to provide horizontal
support vent sections.

• SLP ceiling fi restops have tabs that may be used to
provide vertical support.

WARNING! Risk of Fire, Explosion or Asphyxiation!

Improper support may allow vent to sag and separate.
Use vent run supports and connect vent sections per in­stallation instructions. DO NOT allow vent to sag below
connection point to appliance.

E. Disassemble Vent Sections

• Rotate either section (see Figure 10.10) so the seams
on both pipe sections are aligned as shown in Figure

10.11.

• Pull carefully to separate the pieces of pipe.

Figure 10.10 Rotate Seams for Disassembly

120º

Figure 10.8 Securing Vertical Pipe Sections

120º

Figure 10.11 Align and Disassemble Vent Sections

Figure 10.9 Securing Horizontal Pipe Sections

45Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

F. Install Decorative Ceiling Components

(SLP only)

A decorative ceiling thimble can be installed on a fl at ceil-
ing through which the vent passes. The decorative ceiling
thimble is used to cover the fi restop.

• Seal the gap between the vent pipe and fi restop using
silicone with a minimum of 300ºF continuous exposure
rating to prevent cold air infi ltration.

• Install the decorative ceiling thimble by sliding it up to
the ceiling and attaching it using the provided screws.

A decorative cathedral ceiling support box can be installed
on a cathedral ceiling through which the vent passes.

• Use a plumb-bob to mark the center line of the venting
system on the ceiling and drill a small hole through the
ceiling and roof at this point. Locate the hole and mark
the outline of the cathedral ceiling support box on the
outside roof.

• Remove shingles or other roof covering as necessary to
cut the rectangular hole for the support box. Cut the hole
1/8 in. (3 mm) larger than the support box outline.

• Lower the support box through the hole in the roof until its
bottom is at least 2 in. (51 mm) below the ceiling (Figure

10.12).

• Level the support box both vertically and horizontally and
temporarily tack it in place through the inside walls into
the roof sheathing.

• Use tin snips to cut the support box from the top corners
down to the roof line and fold the resulting fl aps to the
roof. See Figure 10.13.

• Nail the fl aps to the roof AFTER running a bead of non
hardening sealant between the fl aps and the roof.

WARNING! Risk of Fire! Clean out ALL materials from
inside the support box and complete the vertical vent run
and termination.

LEVEL

CATHEDRAL CEILING
SUPPORT BOX

2 in. (51 mm) MIN. BELOW
FINISHED CEILING

CUT HOLE 1/8 in. (3 mm)
GREATER IN SIZE THAN
PATTERN OF SUPPORT
BOX AS IT IS PROJECTED
ONTO ROOF LINE

Figure 10.12

Figure 10.13

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1146

G. Install Metal Roof Flashing

Figure 10.16 Assembling the Storm Collar

Figure 10.17 Assembling the Storm Collar Around the Pipe

Figure 10.15

• See minimum vent heights for various pitched roofs
(Figure 10.14) to determine the length of pipe to extend
through the roof.

• Slide the roof fl ashing over the pipe sections extending
through the roof as shown in Figure 10.15.

HORIZONTAL

OVERHANG

CAULK

2 FT.
MIN.

GAS DIRECT VENT
TERMINATION CAP

Roof Pitch H (Min.) Ft.

Flat to 6/12........................................1.0*

Over 6/12 to 7/12 ............................1.25*

Over 7/12 to 8/12 ..............................1.5*

Over 8/12 to 9/12 ..............................2.0*

Over 9/12 to 10/12 ............................. 2.5

Over 10/12 to 11/12 ......................... 3.25

Over 11/12 to 12/12 ........................... 4.0

Over 12/12 to 14/12 ........................... 5.0

Over 14/12 to 16/12 ........................... 6.0

Over 16/12 to 18/12 ........................... 7.0

Over 18/12 to 20/12 ........................... 7.5

Over 20/12 to 21/12 ........................... 8.0

20 INCHES MIN.

LOWEST

DISCHARGE

OPENING

X

12

ROOF PITCH

H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING

* 3 foot minimum in snow regions

VERTICAL

WALL

IS X/ 12

Figure 10.15

H. Assemble and Install Storm Collar

CAUTION! Risk of Cuts, Abrasions or Flying Debris.

Wear protective gloves and safety glasses during installa­tion. Sheet metal edges are sharp.

• Connect both halves of the storm collar with two screws
(see Figure 10.16).

• Wrap the storm collar around the exposed pipe section
closest to the roof and align brackets. Insert a bolt
(provided) through the brackets and tighten the nut to
complete the storm collar assembly . Make sure the collar
is tight against the pipe section.

• Slide the assembled storm collar down the pipe section
until it rests on the roof fl ashing (see Figure 10.17).

• Caulk around the top of the storm collar (see Figure 10.18).

Figure 10.14 Minimum Height From Roof To Lowest Discharge

Opening

NOTICE: Failure to properly caulk the roof fl ashing and
pipe seams may permit entry of water.

• Caulk the gap between the roof fl ashing and the outside
diameter of the pipe.

• Caulk the perimeter of the fl ashing where it contacts the
roof surface. See Figure 10.15.

• Caulk the overlap seam of any exposed pipe sections
that are located above the roof line.

Figure 10.16 Assembling the Storm Collar

Figure 10.17 Assembling the Storm Collar Around the Pipe

47Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

Figure 10.18

I. Install Vertical Termination Cap

• Attach the vertical termination cap by sliding the inner

collar of the cap into the inner fl ue of the pipe section
while placing the outer collar of the cap over the outer
fl ue of the pipe section.

• Secure the cap by driving three self-tapping screws

(supplied) through the pilot holes in the outer collar of the
cap into the outer fl ue of the pipe (see Figure 10.18).

TERMINATION CAP

(1 of 3)

STORM
COLLAR

SCREWS

CAULK

Figure 10.18

J. Install Decorative Wall Components (SLP

only)

A decorative wall thimble can be installed on wall through
which the vent passes. The decorative wall thimble is used
to cover the wall shield fi restop.

• Slide the decorative wall thimble over the last section of

horizontal pipe before connecting the termination cap to
the pipe.

• Once the pipe section and the termination cap have been

connected, slide the wall thimble up to the interior wall
surface and attach with screws provided. See Figure

10.19.

K. Heat Shield Requirements for Horizontal

Termination

WARNING! Risk of Fire! To prevent overheating and fi re,
heat shields must extend through the entire wall thick­ness.

• DO NOT remove the heat shields attached to the
wall shield fi restop and the horizontal termination cap
(shown in Figure 10.20).

• Heat shields must overlap 1-1/2 in. (38 mm) mini­mum.

There are two sections of the heat shield. One section
is factory-attached to the wall shield fi restop. The other
section is factory-attached to the cap. See Figure 10.20.

If the wall thickness does not allow the required 1-1/2 in.
(38 mm) heat shield overlap when installed, an extended
heat shield must be used.

• If the wall thickness is less than 4 in./102 mm (DVP)
or 4-3/8 in./ 111 mm (SLP), the heat shields on the cap
and wall shield fi restop must be trimmed. A minimum
1-1/2 in. (38 mm) overlap MUST be maintained.

• Use an extended heat shield if the fi nished wall thickness
is greater than 7-1/4 in. (184 mm).

• The extended heat shield may need to be cut to length
maintaining suffi cient length for a 1-1/2 in. (38 mm)
overlap between heat shields.

• Attach the extended heat shield to either of the existing
heat shields using the screws supplied with the extended
heat shield. Refer to vent components diagrams in the
back of this manual.

• Rest the small leg on the extended heat shield on top
of the pipe section to properly space it from the pipe
section.

Important Notice: Heat shields may not be fi eld constructed.

Figure 10.19 Wall Thimble

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1148

L. Install Horizontal Termination Cap (DVP

and SLP Pipe)

WARNING! Risk of Fire! The telescoping fl ue section of
the termination cap MUST be used when connecting vent.

• 1-1/2 (38 mm) minimum overlap of fl ue telescoping
section is required.

Failure to maintain overlap may cause overheating and
fi re.

• Vent termination must not be recessed in the wall. Siding
may be brought to the edge of the cap base.

• Flash and seal as appropriate for siding material at
outside edges of cap.

• When installing a horizontal termination cap, follow
the cap location guidelines as prescribed by current
ANSI Z223.1 and CAN/CGA-B149 installation codes
and refer to Section 6 of this manual.

CAUTION! Risk of Burns! Local codes may require in­stallation of a cap shield to prevent anything or anyone
from touching the hot cap.

NOTICE: For certain exposures which require superior
resistance to wind-driven rain penetration, a fl ashing kit and
HRC caps are available. When penetrating a brick wall, a
brick extension kit is available for framing the brick.

Note: When using termination caps with factory-supplied
heat shield attached, no additional wall shield fi restop is
required on the exterior side of a combustible wall.

HEAT SHIELD OR

EXTENDED

WALL SHIELD

FIRESTOP

INNER VENT

OUTER VENT

VENT DEPTH FROM BACK OF APPLIANCE TO

OUTSIDE SURFACE OF EXTERIOR WALL

Figure 10.20 Venting through the wall

HEAT SHIELD

SLIP SECTION

CAN BE EXTENDED

(SEE CHART BELOW)

INTERIOR

Cap Specifi cation Chart

(depth without using additional pipe sections)

DVP-TRAPK1

Top Vent

Depth

2-3/4 in. to

CD4236
CD4842

Series

DVP-TRAP1 can adjust 1-1/2 in. (3-1/8 to 4-5/8 in.)
DVP-TRAP2 can adjust 4 in. (5-3/8 to 9-3/8)
DVP-HPC1 can adjust 2-1/8 in. (4-1/4 to 6-3/8)
DVP-HPC2 can adjust 4-1/8 in. (6-3/8 to 10-1/2)

4-5/8 in.

DVP-HPC1

Top Vent

Depth

2-3/4 in. to

4-7/8 in.

DVP-TRAP1

Rear Vent

Depth

3-1/8 in. to

5 in.

DVP-HPC1

Rear Vent

Depth

3-1/8 in. to

5-1/4 in.

DVP-TRAPK2

Top Vent

Depth

5-1/8 in. to

9-1/8 in.

DVP-HPC2

Top Vent

Depth

4-7/8 in. to

9 in.

HEAT SHIELD

1-1/2 IN. (38 MM) MIN.

OVERLAP

SHEATHING

DVP-TRAP2

Rear Vent

Depth

5-1/2 in. to

9-1/2 in.

DVP-HPC2

Rear Vent

Depth

5-1/4 in. to

9-3/8 in.

EXTERIOR

49Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

11

11

Gas Information

A. Fuel Conversion

• Make sure the appliance is compatible with available
gas types.

• Conversions must be made by a qualified service
technician using Hearth & Home T echnologies specifi ed
and approved parts.

B. Gas Pressure

• Optimum appliance performance requires proper input
pressures.

• Gas line sizing requirements will be determined in ANSI
Z223.1 National Fuel Gas Code in the USA and CAN/
CGA B149 in Canada.

• Pressure requirements are:

Gas Pressure Natural Gas Propane

Minimum inlet pressure 5.0 in. w.c. 11.0 in. w.c.
Maximum inlet pressure 10.0 in. w.c. 13.0 in. w.c.
Manifold pressure 3.5 in. w.c. 10.0 in. w.c.

WARNING! Risk of Fire or Explosion! High pressure
will damage valve. Low pressure may cause explosion.

• Verify inlet pressures. Verify minimum pressures when
other household gas appliances are operating.

• Install regulator upstream of valve if line pressure is
greater than 1/2 psig.

WARNING

Fire Risk.
Explosion Hazard.
High pressure will damage valve.

• Disconnect gas supply piping BEFORE
pressure testing gas line at test pressures
above 1/2 psig.

• Close the manual shutoff valve BEFORE
pressure testing gas line at test pressures
equal to or less than 1/2 psig.

Note: Have the gas supply line installed in accordance with
local codes, if any. If not, follow ANSI 223.1. Installation
should be done by a qualifi ed installer approved and/or
licensed as required by the locality. (In the Commonwealth
of Massachusetts installation must be performed by a
licensed plumber or gas fi tter).

Note: A listed (and Commonwealth of Massachusetts ap­proved) 1/2 in. (13 mm) T-handle manual shut-off valve
and fl exible gas connector are connected to the 1/2 in. (13
mm) control valve inlet.

• If substituting for these components, please consult
local codes for compliance.

C. Gas Connection

• Refer to Reference Section 16 for location of gas line
access in appliance.

• Gas line may be run through knockout(s) provided.

• The gap between supply piping and gas access hole may
be caulked with caulk with a minimum of 300ºF continuous
exposure rating or stuffed with non-combustible, unfaced
insulation to prevent cold air infi ltration.

• Ensure that gas line does not come in contact with outer
wrap of the appliance. Follow local codes.

• Pipe incoming gas line into valve compartment.

• Connect incoming gas line to the 1/2 in. (13 mm)
connection on manual shutoff valve.

WARNING! Risk of Fire or Explosion! Support control
when attaching pipe to prevent bending gas line.

• A small amount of air will be in the gas supply lines.

WARNING! Risk of Fire or Explosion! Gas build-up dur ­ing line purge could ignite.

• Purge should be performed by qualified service

technician.

• Ensure adequate ventilation.

• Ensure there are no ignition sources such as sparks

or open fl ames.

Light the appliance. It will take a short time for air to purge
from lines. When purging is complete the appliance will
light and operate normally.

WARNING! Risk of Fire, Explosion or Asphyxiation!

Check all fi ttings and connections with a non-corrosive
commercially available leak-check solution. DO NOT use
open fl ame. Fittings and connections could have loos-
ened during shipping and handling.

WARNING! Risk of Fire! DO NOT change valve settings.
This valve has been preset at the factory.

D. High Altitude Installations

NOTICE: If the heating value of the gas has been reduced,
these rules do not apply. Check with your local gas utility
or authorities having jurisdiction.

When installing above 2000 feet elevation:

• In the USA: Reduce burner orifi ce 4% for each 1000 feet
above 2000 feet.

• In CANADA: Reduce burner orifi ce 10% for elevations
between 2000 feet and 4500 feet. Above 4500 feet,
consult local gas utility.

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1150

12

12

Electrical Information

A. Wiring Requirements

NOTICE: This appliance must be electrically wired
and grounded in accordance with local codes or, in the
absence of local codes, with National Electric Code

ANSI/NFPA 70-latest edition or the Canadian Electric
Code CSA C22.1.

• Wire the appliance junction box to 110-120 VAC. This is
required for use of optional accessories (standing pilot
ignition) or proper operation of the appliance (IntelliFire
PlusTM ignition).

• A 1 10-120 V AC circuit for this product must be protected
with ground-fault circuit-interrupter protection, in
compliance with the applicable electrical codes, when
it is installed in locations such as in bathrooms or near
sinks.

• Low voltage and 110 VAC voltage cannot be shared
within the same wall box.

WARNING! Risk of Shock or Explosion! DO NOT wire
1 10V to the valve or to the appliance wall switch. Incorrect
wiring will damage controls.

B. IntelliFire PlusTM Ignition System Wiring

• Wire the appliance junction box to 110 VAC for proper
operation of the appliance.

WARNING! Risk of Shock or Explosion! DO NOT wire
IPI controlled appliance junction box to a switched circuit.
Incorrect wiring will override IPI safety lockout.

• Refer to Figure 12.1, IPI Wiring Diagram.

• This appliance is equipped with an IntelliFire PlusTM
control valve which operates on a 6 volt system.

• Plug the 6 volt transformer plug into the appliance junction
box to supply power to the unit OR install 4 AA cell
batteries (not included) into the battery pack before use.

C. Optional Accessories Requirements

• This appliance may be used with a wall switch, wall
mounted thermostat and/or a remote control.

Wiring for optional Hearth & Home T echnologies approved
accessories should be done now to avoid reconstruction.
Follow instructions that come with those accessories.

• Hearth & Home Technologies recommends that Intel-

liFire PlusTM wireless controls be used for their features
and functionality with the IntelliFire PlusTM ignition sys­tem.

TO JUNCTION

BOX (110V)

ORANGE

LOT)

(PI

FLAME

MODULATION

GREEN
(MAIN)

MODULE

RED

BROWN

BLACK

GROUND

FLAME
SENSE

IGNITOR

BATTERY PACK

6V DC

RC100 RC200

(OPTIONAL WALL CONTROLS)

THERMOSTAT WIRE

ASSEMBLY / WALL

SWITCH WIRE

Figure 12.1 IPI Wiring Diagram

51Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

D. Electrical Service and Repair

WARNING! Risk of Shock! Label all wires prior to discon­nection when servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper opera­tion after servicing.

WARNING! Risk of Shock! Replace damaged wire with
type 105º C rated wire. Wire must have high temperature
insulation.

E. Junction Box Installation

If the box is being wired from the INSIDE of the appli­ance:

• Remove the screw attaching the junction box/receptacle to
the outer shell, rotate the junction box inward to disengage
it from the outer shell (see Figure 12.2).

• Pull the electrical wires from outside the appliance through
the opening into the valve compartment and secure wires
with a Romex connector. See Figure 12.2.

• Make all necessary wire connections to the junction
box/receptacle and reattach the junction box/receptacle
to the outer shell.

WHT

BLK

WHT

BLK

Figure 12.2 Junction Box Detail

Romex
Connector

Cover Plate
outside firebox

Copper

GRN wire
inside box

ground attached
to GRN screw with
GRN wire

NOTICE: DO NOT wire
110 VAC to wall switch.

14/2WG

F. Wall Switch Installation for Fan (Optional)

If the box is being wired to a wall mounted switch for use
with a fan (See Figure 12.3):

• The power supply for the appliance must be brought into
a switch box.

• The power can then be supplied from the switch box to the
appliance using a minimum of 14-3 with ground wire.

• At the switch box connect the black (hot) wire and red
(switch leg) wire to the wall switch as shown.

• At the appliance connect the black (hot), white (neutral)
and green (ground) wires to the junction box as shown.

• Add a 1/4 in. insulated female connector to the red (switch
leg) wire, route it through the knockout in the face of the
junction box, and connect to the top fan switch connector
(1/4 in. male) as shown.

Minimum 14-3 AWG
with Ground

Junction Box

Red

Figure 12.3 Junction Box Wired to Wall Switch or BC10

Red

Black

White

Red

Green

Black

White

Black

Green

Switch Box

Knockout

White

Green

Switch

Power

Supply

Wires

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1152

13

13

Finishing

A. Mantel and Wall Projections

WARNING! Risk of Fire! Comply with all minimum clear­ances as specifi ed. Framing closer than the minimums listed
must be constructed entirely of noncombustible materials
(i.e., steel studs, concrete board, etc.)

Combustible Mantels

Note: All

measurements
in inches.

2-1/2

12

11

10

9

8

7

6

5

4

3

12

11

10

5

15

14

13

18

16

TO CEILING

18

17

32

25

19

B. Facing Material

• Metal front faces may be covered with non-combustible
materials only.

• Facing and/or fi nishing materials must not interfere with
air fl ow through louvers, operation of louvers or doors,
or access for service.

• Facing and/or fi nishing materials must never overhang
into the glass opening.

• Observe all clearances when applying combustible
materials.

• Seal joints between the fi nished wall and appliance top
and sides using a 300 ºF minimum sealant. Refer to
Figure 13.3.

WARNING! Risk of Fire! DO NOT apply combustible
materials beyond the minimum clearances. Comply with
all minimum clearances to combustibles as specifi ed in
this manual. Overlapping materials could ignite and will
interfere with proper operation of doors and louvers.

B

FACTORY-INSTALLED NON-COMBUSTIBLE BOARD

DO NOT REMOVE

MEASUREMENTS FROM

TOP EDGE OF THE OPENING

Figure 13.1 Minimum Vertical and Maximum
Horizontal Dimensions

Mantel Legs or Wall Projections

Top of
Appliance

A

B

Mantel Leg or

Perpendicular Wall

1 in. (25 mm) min.

A

to perpendicular wall
3-1/2 in. (89 mm) min.

B

from fireplace opening
to perpendicular wall

Drywall

A

AB

CD4236

CD4842

Figure 13.3 Noncombustible Facing Diagram

inches 39-3/4 41

millimeters 1010 1041

inches 41-3/4 48

millimeters 1060 1219

Figure 13.2 Mantel Leg or Wall Projections (Acceptable
on both sides of opening)

53Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

14

14

Appliance Setup

A. Remove Fixed Glass Assembly

See Section 14.H.

B. Remove the Shipping Materials

Remove shipping materials from inside or underneath the
fi rebox.

C. Clean the Appliance

Clean/vacuum any sawdust that may have accumulated
inside the fi rebox or underneath in the control cavity.

D. Accessories

Install approved accessories per instructions included
with accessories. Contact your dealer for a list of ap­proved accessories.

WARNING! Risk of Fire and Electric Shock! Use ONLY
Hearth & Home Technologies-approved optional acces­sories with this appliance. Using non-listed accessories
could result in a safety hazard and will void the warranty.

E. Ember Placement

WARNING! Risk of Explosion! Follow ember placement
instructions. DO NOT place ember directly over burner
ports. Replace ember material annually . Improperly placed
ember material interferes with proper burner operation.

Place the Ember Material

See Figures 14.1 and 14.2. Place a small amount of
1/2 in. diameter pieces (dime-size) of ember material on
the burner top. Be careful not to cover burner ports. It is
not necessary to use the entire bag. Save the remaining
amount for future use.

WARNING! Risk of Explosion! Follow ember placement
instructions. DO NOT place embers directly over burner
ports. Replace ember material annually . Improperly placed
embers interfere with proper burner operation.

Ember material is shipped with this gas appliance. T o place
the ember material:

• Embers CANNOT be placed directly over ports. Care
should be taken not to cover the lighting trail of ports
(from back to front).

• Place dime-size pieces of Glowing Embers® just in front
of the port trail, but not on or in between the ports (see
Figure 14.2). Care should be taken so that the ports are
not covered. Failure to follow this procedure will likely
cause lighting and sooting problems.

Figure 14.1 Placement of Embers

Vermiculite and
lava rock
placement on
sides and front
of hearth pan.

Figure 14.2 Placement of Embers

Ember

placement

(shaded areas)

Vermiculite and
lava rock
placement on
sides and front
of hearth pan.

F. Place the Lava Rock and Vermiculite

See Figures 14.3 and 14.4. Lava rock should be evenly
spread on fi rebox bottom, It is not necessary to use the
entire bag. Save the remaining amount for future use.

Figure 14.3 Placement of Lava Rock

Spread vermiculite in a light, even pattern on top of lava
rock. It is not necessary to use the entire bag. Save the
remaining amount for future use.

Figure 14.4 Placement of Vermiculite

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1154

G. Install the Log Assembly

BASE LOG

REAR FACE

FRONT FACE

REAR LOG

FRONT “V”

RIGHT LOG

LEFT LOG

REAR LOG

FLAT
AREA

BASE LOG

D

A

C

B

D

A

C

B

LOG A
SHOULD NOT
COVER ANY
PORTS

Log Set Assembly: LOGS-4236, LOGS-4842
Models: CNXT4236IT-C, CNXT4842IT-C,

CNXT4236IH-C, CNXT4842IH-C
CD4236IR-C, CD4842IR-C

LOG PLACEMENT INSTRUCTIONS

CAUTION: Logs are fragile, handle with care.

Log A: SRV2208-702
Log B: SRV2208-703
Log C: SRV2208-704
Log D: SRV2208-073 (4236 models)
SRV2211-073 (4842 models)

D

A

C

Figure 1. Base Logs

REAR LOG

A

D

LOG A
SHOULD NOT
COVER ANY
PORTS

B

LEFT LOG

1. Base logs have been permanently mounted on the

2. Be sure the left end of log A is not covering ports.

3. Left log placement (SRV2208-705) : Mate rear and front

4. Right log placement (SRV2208-706) : Place the right log

5. Figure 4 shows the Left and Right Logs properly placed.

REAR FACE

grate assembly. Do not attempt to remove or relocate
the logs. See Figure 1.

Slide the left end of log A back if it’s covering ports.
See Figure 2.

faces of left log with indentations on rear and base logs
as shown in Figure 2 and Figure 3. Slide the left log
back.

by positioning the front “V” of the log on the indentation
on the base log and resting the rear of the log on the
fl at area of the rear log. See Figure 2 and Figure 4.

Both Left and Right Logs should sit securely on the rear
and corresponding base logs.

RIGHT LOG

FLAT
AREA

REAR LOG

BASE LOG

Figure 2. Left Log and Right Log Reference Points

Figure 3. Left Log in Proper Position Figure 4. Left and Right Log in Proper Position

C

B

FRONT FACE

FRONT “V”

BASE LOG

55Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

H. Fixed Glass Assembly

AIR SHUTTER WING NUT

WARNING! Risk of Asphyxiation! Handle fi xed glass
assembly with care. Inspect the gasket to ensure it is
undamaged and inspect the glass for cracks, chips or
scratches.

• DO NOT strike, slam or scratch glass.

• DO NOT operate fi replace with glass removed, cracked,

broken or scratched.

• Replace as a complete assembly.

Removing Fixed Glass Assembly

• Pull the four glass assembly latches out of the groove on
the glass frame. Remove glass door from the appliance

(see Figure 14.5).

Replacing Fixed Glass Assembly

• Replace the glass door on the appliance. Pull out and
latch the four glass assembly latches into the groove on
the glass frame.

J. Air Shutter Setting

Air shutter settings should be adjusted by a qualifi ed ser-
vice technician at the time of installation. The air shutter is
set at the factory for minimum vertical vent run. Adjust air
shutter for longer vertical runs. See Figure 14.6.

• Loosen the wing nut.

• Move the air handle to the right to open the air shutter.

• Move the air handle to the left to close the air shutter.

• Tighten the wing nut.

NOTICE: If sooting occurs, provide more air by opening
the air shutter.

LATCHES

(BOTH BOTTOM

AND TOP)

GLASS

ASSEMBLY

Figure 14.5 Fixed Glass Assembly

I. Install Trim and/or Surround

• Install optional trim kits and/or surrounds using the
instructions included with the accessory.

• Use non-combustible materials to cover the gap between
the sheet rock and the appliance (when applicable to the
model).

Figure 14.6 Air Shutter

Air Shutter Settings

NG LP

CD4236IR-C 1/8 in. 5/8 in.
CD4842IR-C 5/16 in. Fully Open

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1156

15

15

With proper installation, operation, and maintenance your gas appliance will provide years of trouble-free service. If you do
experience a problem, this troubleshooting guide will assist a qualifi ed service technician in the diagnosis of a problem and
the corrective action to be taken. This troubleshooting guide can only be used by a qualifi ed service technician. Contact
your dealer to arrange a service call by a qualifi ed service technician.

Troubleshooting

A. IntelliFire PlusTM Ignition System

Symptom Possible Cause Corrective Action

1. Pilot won’t light.
The ignitor/module
makes noise, but no
spark.

2. Pilot won’t light,
there is no noise or
spark.

3. Pilot sparks, but
Pilot will not light.

A. Incorrect wiring. Verify “S” wire (white) for sensor and “I” wire (orange) for ignitor are

connected to correct terminals on module and pilot assembly.

B. Loose connections or electrical

shorts in the wiring.

C. Ignitor gap is too large. Verify gap of igniter to right side of pilot hood. The gap should be

A. No power, transformer installed

incorrectly, or depleted batteries.

B. A shorted or loose connection in

wiring confi guration or wiring har-
ness.

C. Improper wall switch wiring. Verify that 110/VAC power is “ON” to junction box.
D. Module not grounded. Verify black ground wire from module wire harness is grounded to

A. Gas supply. Verify that incoming gas line ball valve is “open”. Verify that inlet

Verify no loose connections or electrical shorts in wiring from mod­ule to pilot assembly. Verify connections underneath pilot assembly
are tight; also verify igniter and fl ame sense wires are not grounding
out to metal chassis, pilot burner, pilot enclosure, mesh screen if
present, or any other metal object.

approximately .17 in. or 1/8 in. (3 mm).
Verify that transformer is installed and plugged into module. Check

voltage of transformer at connection to module. Acceptable read­ings of a good transformer are between 6.4 and 6.6 volts AC. Bat­tery power supply voltage must be at least 4 volts. If below 4 volts,
replace batteries.

Remove and reinstall the wiring harness that plugs into module. Ver­ify there is a tight fi t. Verify pilot assembly wiring to module. Remove
and verify continuity of each wire in wiring harness. Replace any
damaged components.

metal chassis of appliance.

pressure reading is within acceptable limits.

B. Ignitor gap is too large. Verify gap of igniter to right side of pilot hood. The gap should be

approximately .17 in. or 1/8 in. (3 mm).
C. Module is not grounded. Verify module is securely grounded to metal chassis of appliance.
D. Pilot valve solenoid. Verify that 1.5 to 1.8 VDC is supplied to pilot solenoid from module.

If below 1.5 volts, replace module. If 1.5 volts or greater, replace

valve.

57Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

Troubleshooting (continued)

Symptom Possible Cause Corrective Action

4. Pilot lights but contin­ues to spark, and main
burner will not ignite.
(If the pilot continues
to spark after the
pilot fl ame has been lit,
fl ame rectifi cation has
not occurred.)

A. A shorted or loose connection in fl ame

sensing rod.

B. Poor fl ame rectifi cation or contaminated

fl ame sensing rod.

C. Module is not grounded. Verify module is securely grounded to metal chassis of ap-

D. Damaged pilot assembly or contami-

nated fl ame sensing rod.

E. Module. Turn ON/OFF rocker switch or wall switch to OFF position.

Verify all connections to wiring diagram in manual. Verify
connections underneath pilot assembly are tight. Verify
fl ame sense or igniter wires are not grounding out to metal
chassis, pilot burner, pilot enclosure or screen if present, or
any other metal object.

With fi xed glass assembly in place, verify that fl ame is en-
gulfi ng fl ame sensing rod on left side of pilot hood. Flame
sensing rod
meter, verify that current in series between module and
sense lead is at least 0.14 microamps. Verify correct pilot
orifi ce is installed and gas inlet is set to pressure specifi -
cations. Polish fl ame sensing rod with fi ne steel wool to
remove any contaminants that may have accumulated on
fl ame sensing rod.

pliance. Verify that wire harness is fi rmly connected to the
module.

Verify that ceramic insulator around the fl ame sensing rod
is not cracked, damaged, or loose. Verify connection from
fl ame sensing rod to white sensor wire. Polish fl ame sens-
ing rod with fi ne steel wool to remove any contaminants that
may have accumulated on fl ame sensing rod. Verify conti-
nuity with a multi-meter with ohms set at lowest range. Re­place pilot if any damage is detected.

Remove ignitor wire “I” from module. Place ON/OFF rocker
switch or wall switch in ON position. If there is no spark at “I”
terminal module must be replaced. If there is a spark at “I”
terminal, module is fi ne.

should glow shortly after ignition. With a multi-





Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1158

16

16

Reference Materials

A. Appliance Dimension Diagram

Dimensions are actual appliance dimensions. Use for reference only . For framing dimensions and clearances refer to Section 5.

L

M

J

N

TOP VIEW

GAS LINE

ACCESS

R

O

P

LEFT SIDE RIGHT SIDE

Q

B
A

FRONT VIEW

K

D

C

E

F

H

I

G

Location Inches Millimeters

A 41 1041

B 36-1/8 918
C 33-1/2 851
D 34-5/8 879

E 2-1/4 57

F 9-11/16 246
G 26-7/8 683
H 6 dia 152

I 39-7/8 1013

Figure 16.1 Appliance Dimensions CD4236IR-C Models

Location Inches Millimeters

J 21 533
K 11-11/16 297
L 28-1/2 724

M 14-1/4 362
N 8-1/2 216
O 2-7/8 73

P 8-1/2 216

Q1 25
R 40-7/8 1038

59Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

GAS LINE

ACCESS

L

M

J

N

TOP VIEW

R

K

H

D

C

I

G

O

P

LEFT SIDE

Q

Location Inches Millimeters

A 48 1219

B 43-1/8 1096
C 34-3/8 873
D 36-5/8 930

E 2-3/8 60

F 9-15/16 252
G 28-7/8 734
H 6 152

I 41-7/8 1064

Figure 16.1 Appliance Dimensions CD4842IR-C Models

B
A

FRONT VIEW

E

F

RIGHT VIEW

Location Inches Millimeters

J 21 533
K 11-11/16 297
L 35-1/2 901

M 17-3/4 451

N 8-1/2 216

O 2-7/8 73

P 8-1/2 216

Q1 25

R 42-7/8 1089

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1160

B. Vent Components Diagrams

10-1/2 in.
(267 mm)

10-7/8 in.
(276 mm)

45

°

7-3/8 in.

(187 mm)

11-3/8 in.
(289 mm)

1-1/4 in. (32 mm)

9-1/4 in.

(235 mm)

13-1/4 in.
(337 mm)

1/2 in.

TYP

DVP90ST (90° Elbow)

10 in.

(254 mm)

10 in.

(254 mm)

1 in.

(25 mm)

12 in.

(305 mm)

14 in.

(356 mm)

1 in.
(25 mm)

8 in.

(203 mm)

6 in.

(152 mm)

10 in.

(254 mm)

1- 1/2 in.
(38 mm)

5 in.

(127 mm)

12 in.

(305 mm)

UP

DVP-HVS (Vent Support)

DVP-WS (Wall Shield Firestop)

DVP-FS (Ceiling Firestop)

DVP45 (45º Elbow)

DVP Pipe (see chart)

Effective

Height/Length

4-7/8 in.

( 276 mm)

(13 mm)

Assembled

Height: 24 in./610 mm

Diameter: 10 in./254 mm

DVP-AS2

Pipe

DVP4 4 102
DVP6 6 152
DVP12 12 305
DVP24 24 610
DVP36 36 914
DVP48 48 1219
DVP6A 3 to 6 76 to 152
DVP12A 3 to 12 76 to 305
DVP12MI 3 to 12 76 to 305
DVP24MI 3 to 24 76 to 610

Effective Length

Inches Millimeters

Figure 16.2 DVP vent components

61Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

B. Vent Components Diagrams (continued)

Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm). The heat shield is designed to be
used on a wall 4 in. to 7-1/4 in. (102 mm to 184 mm) thick. If wall thickness is less than 4 in. (102 mm) the

existing heat shields must be field trimmed. If wall thickness is greater than 7-1/4 in. (184 mm) a DVP-HSM-B
will be required.

15-1/8 in.

(384 mm)

(305 mm)

DVP-TRAP

Horizontal Termination Cap

12 in.

8 in.

(203 mm)

Max

Effective

Length

Heat

Shield

Term Cap

Trap1

Trap2

Minimum

Effective Length

3-1/8 in. 4-5/8 in.

79 mm 117 mm
5-3/8 in. 9-3/8 in.
137 mm 238 mm

Effective Length

Maximum

DVP-TRAP1

DVP-TRAPK1

DVP-HPC1

DVP-TRAP2

DVP-TRAPK2

DVP-HPC2

Figure 16.3 DVP vent components

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1162

13-1/4 in.

(367 mm)

24-5/8 in.

(625 mm)

27-1/2 in.

(127 mm)

RF6M

Roof Flashing Multi-pak

31 in.

(787 mm)

24-5/8 in.

(625 mm)

13-1/4 in.

(367 mm)

RF12M

Roof Flashing Multi-pak

BEK

Trap Cap Brick Extension

13-3/4 in.
(349 mm)

5 in.

(127 mm)

13-3/4 in.
(349 mm)

Cap Shield

DRC-RADIUS

13-7/8 in.

(352 mm)

9-1/2 in.

(241 mm)

14 in.

(356 mm)

COOL-ADD

Cap Shield

11-5/8 in.

(295 mm)

5-3/4 in.

(146 mm)

7-1/8 in.

(181 mm)

12-1/8 in.
(308 mm)

DVP-BEK2

DVP-HPC Cap Brick Extension

13-7/8 in.
(352 mm)

5 in.

(127 mm)

11-7/8 in.

(302 mm)

DVP-TRAPFL

Flashing

26 in.

660 mm

DVP-HSM-B
Extended Heat Shield

B. Vent Components Diagrams (continued)

Figure 16.4 DVP vent components

63Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

B. Vent Components Diagrams (continued)

7-3/8 in.

(187 mm)

1-1/2 in.

(38 mm)

3-7/8 in.
(98 mm)

14 in.

(356 mm)

12 in.

(305 mm)

DVP-TB1

BasementVent Cap

PVK-80

(Not compatible with Intellifire Plus™.)

(For use with IPI and DSI appliances only.)

17-3/4 in.
(451 mm)

10-1/2 in.

(267 mm)
DVP-TV

VerticalTermination Cap

Not for use with these models

Fillers

DVP-TRAP to DVP-HPC Side Filler Kit

12 in.

305 mm

7-1/4 in.

(184 mm)

5-1/4 in.

(133 mm)

12-1/2 in.
(318 mm)

16-7/8 in.

(429 mm)

12 in.

(305 mm)

12-1/8 in.

(314 mm)

1-5/8 in.

(41 mm)

High Performance Cap

Figure 16.5 DVP vent components

7-1/8 in.

(181 mm)

DVP-HPC

8-3/4 in.

(222 mm)

14 in.

(356 mm)

DVP-TVHW

VerticalTermination Cap (Highwind)

7-1/4 in.

1 in.

(25 mm)

14 in.

(356 mm)

3/8 in. (10 mm)

1 in. (25 mm)

(184 mm)

7-3/4 to 10-3/8 in.

(197 to 264 mm)

DVP-FBHT

FireBrickTermination Cap

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1164

B. Vent Components Diagrams (continued)

20-3/4 IN.
527 mm

PVI-SLP

Power Vent Inline

13-5/8 IN.
346 mm

12-1/2 IN.
318 mm

9-3/16 IN.
(233 mm)

16 IN.

406 mm

Optional Wire Harness

DESCRIPTION PART NUMBER

10 ft. PV Wire Harness PVI-WH10
20 ft. PV Wire Harness PVI-WH20
40 ft. PV Wire Harness PVI-WH40
60 ft. PV Wire Harness PVI-WH60
80 ft. PV Wire Harness PVI-WH80
100 ft. PV Wire Harness PVI-WH100

Note: Wire harnesses required to power the PVI-SLP
connect to the appliance and are ordered separately from
PVI-SLP. Contact your dealer to order.

4-1/2 IN.
114 mm

15 IN.

(381 mm)

15 in.

(381 mm)

12-1/2 IN.
(318 mm)

(206 mm)

8-1/8 in.

13-5/8
(346 mm)

16-11/16 IN.

424 mm

SLP-LPC

SLP Low Profi le Cap

13 in.

(330 mm)

Effective Length

5-3/4 to 8-3/8 in.

146 to 213 mm

5-1/2 in.
140 mm

87°

WARNING

Fire Risk.

• When using DVP-HRC-SS and DVP-HRC-ZC­SS termination caps on top vented fi replaces, a
6 inch minimum vertical vent section is required
before installing fi rst elbow.

16-11/16 IN.

(424 mm)

8-3/8 in.
213 mm

3°

10-1/2 in.

267 mm

10-7/8 in.

276 mm

Figure 16.6 DVP vent components

DVP-HRC-SS

DVP-HRC-ZC-SS

HORIZONTAL TERMINATION CAP

65Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

B. Vent Components Diagrams (continued)

6-1/2 in.
165 mm

8-3/4 in.
222 mm

6-5/8 in.
168 mm

SLP45

45° Elbow

Effective Height/Length

Pipe

SLP4 4 102
SLP6 6 152

Effective

Height/
Length

SLP12 12 305
SLP24 24 610
SLP36 36 914
SLP48 48 1219
SLP6A 2 - 6 51 - 152

SLP12A 2 - 12 51 - 305

6 in.

152 mm

inches mm

6-1/2 in.
165 mm

6-1/2 in.
165 mm

9-1/4 in.
235 mm

6-5/8 in.
168 mm

9-7/8 in.
251 mm

SLP90
90° Elbow

DVP-SLP24

Adapter

SLP PIPE

SLP-HVS

Horizontal Pipe

Support

Figure 16.7 SLP Series Vent Components

SLP-FS

Ceiling Firestop

SLP-WS

Wall Shield Firestop

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1166

B. Vent Components Diagrams (continued)

Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm). The heat shield is designed to be
used on a wall 4 in. to 7-1/4 in. (102 mm to 184 mm) thick. If wall thickness is less than 4 in. (102 mm)
the existing heat shields must be field trimmed. If wall thickness is greater than 7-1/4 in. (184 mm) a
DVP-HSM-B will be required.

8 in.

(203 mm)

15-1/8 in.

(384 mm)

Heat

Shield

12 in.

(305 mm)

Horizontal Termination Cap

SLP-SNKD

Snorkel

Termination Cap

SLP-TRAP

Max

Effective

Length

SLP-CCS-BK

Cathedral Ceiling

Support Box-Black

Term Cap

Trap1

Trap2

660 mm

Minimum

Effective Length

3-1/8 in. 4-3/4 in.

79 mm 121 mm
5-1/4 in. 9-1/4 in.
133 mm 235 mm

SLP-TVHW

Vertical

Termination Cap

26 in.

Maximum

Effective Length

DVP-2SL

Adapter

SLP-DCF-BK

Ceiling Firestop

Black

Figure 16.8 SLP Series Vent Components

DVP-HSM-B

Extended Heat Shield

SLP-WT-BK

Wall Thimble-Black

67Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

WARNING

Fire Risk.

• When using SLP-HRC-SS and SLP-HRC-ZC­SS termination caps on top vented fi replaces,
a one foot minimum vertical vent section is
required before installing fi rst elbow.

• When using DVP-TB1 termination cap on top vented
fi replaces, a three foot minimum vertical vent section is
required before installing fi rst elbow.

15 in.

(381 mm)

1 in.

(25 mm)

14 in.

(356 mm)

8-1/8 in.

(206 mm)

7-1/4 in.

(184 mm)

13 in.

(330 mm)

Effective Length
5-3/4 to 8-3/8 in.

146 to 213 mm

5-1/2 in.
140 mm

87°

SLP-HRC-SS

SLP-HRC-ZC-SS

HORIZONTAL TERMINATION CAP

8-3/8 in.
213 mm

3°

10-1/2 in.

267 mm

10-7/8 in.

276 mm

(For use with IPI and DSI appliances only.)

PVK-80

Figure 16.9

3/8 in. (10 mm)

1 in. (25 mm)

FireBrickTermination Cap

7-3/4 to 10-3/8 in.

(197 to 264 mm)

DVP-FBHT

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1168

C

D

B

A

LDS33/LDS46 Decorative Shroud

ABCD

Catalog #

LDS33 36 914 36 914 8.5 216 11 279
LDS46 48 1219 72 1829 8.5 216 11 279

in. mm in. mm in. mm in. mm

C. Service Parts

CD4236IR-C, CD4236ILR-C

Beginning Manufacturing Date: Dec 2009

Ending Manufacturing Date: ______

7

9

8

Log Set Assembly

5

4

36 in. Caliber - DV

6

10

1

3

IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement parts
for your appliance please provide model number and serial number. All parts listed in this manual
may be ordered from an authorized dealer.

ITEM DESCRIPTION COMMENTS PART NUMBER

Log Assembly LOGS-4236
1 Log #1 SRV2208-702
2 Log #2 SRV2208-703
3 Log #3 SRV2208-704
4 Log #4 SRV2208-073
5 Log #5 SRV2208-705
6 Log #6 SRV2208-706
7 Insulation Board 2166-136
8 Refractory Back 2207-720

9 Refractory Side

10 Glass Heat Shield 2207-723
1 1 Grate Assembly 2208-015

12

13 Burner Skirt 2208-102
14 Glass Assembly GLA-6000G
15 Mesh Assembly 530-382A
16 Hood SRV60-143-BK
17 Louver Assembly, T op 2208-021
18 Louver Assembly, Bottom 2208-020
19 Valve Assembly Refer to valve page
20 Base Pan 2208-100
21 Junction Box (Plastic) 4021-013

Additional service part numbers appear on following page.

Burner Assembly NG 2207-007

Burner Assembly LP 2207-008

2

11

12

13

20
19

18

17

16

15

14

Left 2207-721
Right 2207-722

21

Stocked
at Depot

Y

Y
Y

Y
Y

Y

69Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

Service Parts

CD4842IR-C, CD4842ILR-C

42 in. Caliber - DV

Beginning Manufacturing Date: Dec 2009

Ending Manufacturing Date: ______

Log Set Assembly

5

3

4

1

6

9

10

2

14

15

16

17

18

13

7

8

22

11
12

20

19

IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement parts for
your appliance please provide model number and serial number. All parts listed in this manual may
be ordered from an authorized dealer.

ITEM DESCRIPTION COMMENTS PART NUMBER

Log Assembly LOGS-4842
1 Log #1 SRV2208-702
2 Log #2 SRV2208-703
3 Log #3 SRV2208-704
4 Log #4 SRV2211-073
5 Log #5 SRV2208-705
6 Log #6 SRV2208-706
7 Insulation Board 2170-136
8 Refractory Back 2210-720

9 Refractory Side

Left 2210-721

Right 2210-722
10 Glass Heat Shield 2210-723
1 1 Grate Assembly 2211-015

12

Burner Assembly NG 2210-007

Burner Assembly LP 2210-008
13 Burner Skirt 2208-102
14 Glass Assembly GLA-950TR
15 Screen Assembly 560-382A
16 Hood SRV560-175
17 Louver Assembly, T op 2210-021
18 Louver Assembly, Bottom 2210-020
19 Valve Assembly Refer to valve page
20 Base Pan 2211-100
21 Junction Box (Plastic) 4021-013
22 Exhaust Cover Shield 385-105

Additional service part numbers appear on following page.

21

Stocked

at Depot

Y

Y
Y

Y
Y

Y

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1170

Service Parts

CD4236IR-C, CD4236ILR-C, CD4842IR-C, CD4842ILR-C

Beginning Manufacturing Date: Dec 2009

Ending Manufacturing Date: ______

#19 Valve Assembly

19.6

19.5

19.3

19.1

19.2

19.4

19.7

19.8

19.9

19.10

19.11

19.12

19.13

IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement parts
for your appliance please provide model number and serial number. All parts listed in this manual
may be ordered from an authorized dealer.

ITEM DESCRIPTION COMMENTS PART NUMBER

19.1

Pilot Assembly - NG 2208-012
Pilot Assembly - LP 2208-013

Pilot Tube SRV485-301

19.2 Pilot Bracket 2208-101

19.3 Burner Leg 2208-106

19.4 Valve Bracket 2118-104

19.5 Battery Pack** 2166-323

19.6 Power Supply 2166-305

19.7 Flex Ball Valve Assembly 302-320A

19.8

Valve - NG 2166-302
Valve - LP 2166-303

19.9 Male Connector Pkg of 5 303-315/5

19.10 Bulkhead W/ Fllex 7000-156

19.11 Shutter Bracket Assembly 2118-121

19.12 Wire Harness 2166-304

19.13 Module 2166-307
Orifi ce (#37C) - NG
Orifi ce (#52C) - LP 582-852

CD4236IR-C

Orifi ce (#33C) - NG
Orifi ce (#51C) - LP 582-851

CD4842IR-C

582-837

582-833

**Fuse for battery pack can be sourced locally, not a warranty item. Specs are 500mA~10A 3/4” long
Additional service part numbers appear on following page.

Stocked
at Depot

Y
Y
Y

Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y

71Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11

Service Parts CD4236IR-C, CD4236ILR-C, CD4842IR-C, CD4842ILR-C

IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement
parts for your appliance please provide model number and serial number. All parts listed
in this manual may be ordered from an authorized dealer.

ITEM DESCRIPTION COMMENTS PART NUMBER

Clips, Hood Pkg of 24 047-805-24
Clips, Mesh Pkg of 24 2005-192-24
Exhaust Cover Shield 385-105
Flue Restrictor 385-128

Stocked

at Depot

Y
Y

Gasket Assembly

Includes Burner Neck, Vent, Valve LED, and Air Shutter Gaskets

Glass Clip Support Assembly Pkg of 2 33858/2
Jumper Wires 2187-198
Lava Rock Bag Assembly 4040-094

Lava Rock 4021-297
Mineral Wool 14333B

Vermiculite (small) 28746
Surround Assembly
Thermostat Wire Assembly 2118-170

CD4236IR-C 2166-019
CD4842IR-C 2170-019

2166-081

Y
Y

Y

Conversion Kit NG
Conversion Kit LP DCKVP-CAL36
Conversion Kit NG
Conversion Kit LP DCKVP-CAL42

Orifi ce, Pilot NG 593-528

Orifi ce, Pilot LP 593-527

Regulator NG NGK-DXV-50

Regulator LP LPK-DXV-50

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1172

CD4236IR-C

CD4842IR-C

DCKVN-CAL36

DCKVN-CAL42

Y
Y
Y
Y
Y
Y
Y
Y

D. Contact Information

T

Heatilator, a brand of Hearth & Home Technologies Inc.

7571 215

th

Street West, Lakeville, MN 55044

www.heatilator.com

Please contact your Heatilator dealer with any questions or concerns.

For the location of your nearest Heatilator dealer,

please visit www.heatilator.com.

- NOTES -

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

NOTICE

DO NOT DISCARD THIS MANUAL

• Important operating
and maintenance
instructions included.

his product may be covered by one or more of the following patents: (United States) 5328356, 5601073, 5613487,
5647340, 5890485, 5941237, 5947112, 5996575, 6006743, 6019099, 6053165, 6145502, 6170481, 6374822, 6484712,
6601579, 6769426, 6863064, 7077122, 7098269, 7258116, 7470729 or other U.S. and foreign patents pending.

• Read, understand and follow
these instructions for safe
installation and operation.

• Leave this manual with
party responsible for use
and operation.

2000-945

Printed in U.S.A. - Copyright 2011

73Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11