Hearth and Home Technologies NDV3630, NDV4842, NDV4236L, NDV3036IL, NDV3933 User Manual

DO NOT

DISCARD

Model(s):

NDV3630, NDV3933, NDV4236, NDV4842,
NDV3630I, NDV3933I, NDV4236I, NDV4842I,
NDV3630L, NDV3933L, NDV4236L, NDV4842L,
NDV3036IL, NDV3933IL, NDV4236IL, NDV4842IL

NOTICE

DO NOT DISCARD THIS MANUAL

• Important operating
and maintenance
instructions included.

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

Owner’s Manual

Installation and Operation

DO NOT

DISCARD

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

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.

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.

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 1

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

Hearth & Home Technologies Inc

1915 W. Saunders Street
Mt. Pleasant, IA 52641

Model #

ANSI Standard

MODEL MFG. DATE
MODÈLE DATE DE FAB.

GAS TYPE/TYPE DE GAZ NATURAL/NATUREL PROPANE
ALTITUDE 0-2000 2000-4000 FT/PI 0-2000 2000-4000 FT/PI
MAX INPUT/DÉBIT XX,XXX XX,XXX BTUH XX,XXX XX,XXX BTUH
MIN INPUT/DÉBIT XX,XXX XX,XXX BTUH XX,XXX XX,XXX BTUH
MANIFOLD PRESSURE/PRESSION TUBULAIRE
MAX. XX IN. W.C./C. D'EAU XX IN. W.C./C. D'EAU
MIN. XX IN. W.C./C. D'EAU XX IN. W.C./C. D'EAU
MIN. INLET PRESS. XX IN. W.C./C. D'EAU 1XX IN. W.C./C. D'EAU
FOR THE PURPOSE OF INPUT ADJUSTMENT
PRESS. MIN. D'ALIMENTATION
ORIFICE SIZE
DIAM. DE L'INJECTEUR XX/XX DIA. in./mm XX/XX DIA. in./mm

LESS THAN/MOINS DE 3 AMPÈRES., 115V., 60 Hz

DO NOT REMOVE OR COVER THIS LABEL.
VENTED GAS FIREPLACE - NOT FOR USE WITH SOLID FUEL.
FOYER À GAZ À ÉVACUATION - NE DOIT PAS ÊTRE UTILISÉ
AVEC UN COMBUSTIBLE SOLIDE.

XXXXXX

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.

Gas Type

SERIAL
NO. DE SÉRIE

Serial #

XXXXXXXXX

XXXX

CERTIFIED

FOR CANADA

CERTIFIÉ POUR LE

CANADA

Orifice
Size

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/082

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 6
B. Tempered Glass Specifi cations 6
C. BTU Specifi cations 6
D. High Altitude Installations 6
E. Non-Combustible Materials Specifi cation 6
F. Combustible Materials Specifi cation 6
G. Requirements for the
Commonwealth of Massacusetts 7

User Guide

2 Operating Instructions

A. Gas Fireplace Safety 8
B. Your Fireplace 8
C. Fan Kit (optional) 9
D. Clear Space 9
E. Decorative Doors and Fronts 9
F. Fixed Glass Assembly 9
G. Remote Controls, Wall Controls and Wall Switches 9
H. Before Lighting Fireplace 9
I. Intermittent Pilot Ignition (IPI) 10
J. Standing Pilot Ignition 11
K. After Appliance is Lit 12
L. Frequently Asked Questions 12

3 Maintenance and Service

A. Maintenance Tasks-Homeowner 13
B. Maintenance Tasks-Service Technician 14

Installer Guide

4 Getting Started

A. Typical Appliance System 16
B. Design and Installation Considerations 17
C. Tools and Supplies Needed 17
D. Inspect Appliance and Components 17

5 Framing and Clearances

A. Select Appliance Location 18
B. Constructing the Appliance Chase 19
C. Clearances 19
D. Mantel and Wall Projections 20

6 Termination Locations

A. Vent Termination Minimum Clearances 21

7 Vent Information and Diagrams

A. Approved Pipe 23
B. Vent Table Key 23
C. Use of Elbows 23
D. Measuring Standards 23
E. Vent Diagrams 24

8 Vent Clearances and Framing

A. Pipe Clearances to Combustibles 33
B. Wall Penetration Framing 33
C. Install the Ceiling Firestop 34
D. Install Attic Insulation Shield 35

9 Appliance Preparation

A. Top Vent 36
B. Rear Vent 37
C. Secure and Level the Appliance 38

10 Installing Vent Pipe

A. Assemble Vent Sections (DVP only) 39
B. Assemble Vent Sections (SLP Pipe Only) 40
C. Assemble MI Sections (DVP only) 40
D. Assemble Slip Sections 41
E. Secure the Vent Sections 42
F. Disassemble Vent Sections 42
G. Install Decorative Ceiling Components (SLP only) 43
H. Install Metal Roof Flashing 44
I. Install RF4-8 45
J. Install Vertical Termination Cap 46
K. Assemble and Install Storm Collar 46
L. Install Heat Shields and
Horizontal Termination Cap 47

11 Gas Information

A. Fuel Conversion 49
B. Gas Pressure 49
C. Gas Connection 49
D. High Altitude Installations 49

12 Electrical Information

A. Wiring Requirements 50
B. Standing Pilot Ignition System Wiring 50
C. Intellifi re Ignition System Wiring 50
D. Optional Accessories Requirements 50
E. Electrical Service and Repair 51
F. Junction Box Installation 52
G. Wall Switch Installation for Fan (Optional) 52

13 Finishing

A. Mantel and Wall Projections 53
B. Facing Material 54

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 3

14 Appliance Setup

A. Remove the Packaging 55
B. Open Front Screen Assembly 55
C. Remove the Shipping Materials 55
D. Remove Fixed Glass Assembly 55
E. Clean the Appliance 55
F. Accessories 55
G. Place the Rockwool 56
H. Place the Lava Rock 56
I. Place the Vermiculite 56
J. Remove Screen Protector 56
K. Unpackage the Hood & Floor Cover 57
L. Install Hood 57
M. Install Floor Cover 58
N. Fixed Glass Assembly 58
O. Close the Screen Assembly 58
P. Air Shutter Setting 59

15 Troubleshooting

A. Standing Pilot Ignition System 60
B. Intellifi re Ignition System 62

16 Reference Materials

A. Appliance Dimension Diagram 64
B. Vent Components Diagrams 65
C. Service Parts 72
D. Optional Components 80
E. Contact Information 84

Î = Contains updated information.

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/084

B. Limited Lifetime Warranty

Gas Appliance (Fireplace)
Limited Lifetime Warranty

HEARTH & HOME TECHNOLOGIES INC. (“HHT”) extends the following warranty for HEATILATOR® gas appliances installed in

the United States of America or Canada (the "Appliance"). Dealers and employees of HHT have no authority to make any warranty
or authorize any remedies in addition to or inconsistent with the terms of this warranty.

Limited Lifetime Warranty

HHT warrants the Appliance for component failure due to a manufacturing defect of any of the following components: combustion chamber, burner
pan, and logs. The Limited Lifetime Warranty specifi ed above is subject to the conditions, exclusions and limitations listed below, is for the period
the Appliance is owned by the original homeowner only, and is nontransferable.

1 Year Limited Warranty

HHT warrants the Appliance to be free from failure of any of the following components for a period of one year after installation: valve, fl exible gas
line connector, glass panel, fan, direct vent chimney components, factory paint, gasket, piezo ignitor, thermopile, thermocouple, junction box, pilot
assembly, shutoff valve, high limit switch, refractory liners, transformer, and control box. If the Heatilator Appliance is found to be defective in either
material or workmanship within one year of the date of original installation, HHT will provide replacement parts at no charge and pay reasonable
labor and freight costs, and is for the period of one year following the date of original installation of the Appliance.

Conditions, Exclusions, & Limitations of Liability

A. Both the Limited Lifetime and 1 Year Limited Warranties supplied by HHT apply only while the Appliance is in its location of original

installation. HHT’s obligation under this warranty does not extend to damages resulting from (1) installation, operation or maintenance of
the Appliance not in accordance with the Installation Instructions, Operating Instructions, and the Listing Agent Identifi cation Label furnished
with the Appliance; (2) installation which does not comply with local building codes; (3) shipping, improper handling, improper operation,
abuse, misuse, accident or unworkmanlike repairs; (4) environmental conditions, inadequate ventilation or drafting caused by tight sealing
construction of the structure, air handling devices such as exhaust fans or forced air furnaces, or other causes; (5) use of fuels other than
those specifi ed in the Operating Instructions; (6) installation or use of components not supplied with the Appliance or any other components
not expressly authorized and approved by HHT; and/or (7) modifi cation of the Appliance not expressly authorized and approved by HHT in
writing. This warranty is limited to only the component parts manufactured or supplied by HHT.

B. HHT’s liability under both the Limited Lifetime Warranty and the 1 Year Limited Warranty is limited to the replacement and repair of

defective components or workmanship during the applicable period. HHT may fully discharge all of its obligations under such warranties
by repairing the defective component(s) or at HHT’s discretion, providing replacement parts at no charge and paying reasonable labor and
freight costs.

C. EXCEPT TO THE EXTENT PROVIDED BY LAW, HHT MAKES NO EXPRESS WARRANTIES OTHER THAN THE WARRANTY

SPECIFIED HEREIN. THE DURATION OF ANY IMPLIED WARRANTY IS LIMITED TO DURATION OF THE WARRANTY SPECIFIED
ABOVE.

D. Some states do not allow exclusions or limitations of incidental or consequential damages, so those limitations may not apply to you. This

warranty gives you specifi c rights; you may also have other rights which vary from state to state.

How to Obtain Service

To obtain service under this warranty you must:

1. Send written notice of the claimed condition to Heatilator Technical Service Department, Hearth & Home Technologies, 1915 W. Saunders
Street, Mt. Pleasant, Iowa 52641-1563. You may also register your claim online at www.heatilator.com.

2. Provide proof of purchase, model number, serial number, and manufacturing date code to HHT.

3. Provide HHT reasonable opportunity to investigate the claim, including reasonable opportunity to inspect the Appliance prior to any repair

or replacement work and before the Appliance or any component of the Appliance has been removed from the place of original installation.

4. Obtain HHT’s consent to any warranty work before the work is done.

ADDITIONAL INFORMATION:

If you would like information on current HEATILATOR products or want to locate a dealer in your area, call 1-800-927-6841.

©2003 Heatilator® is a Registered Trademark of Hearth & Home Technologies Inc.

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 5

1

1

Listing and Code Approvals

A. Appliance Certifi cation

MODELS: NDV3630, NDV3933, NDV4236, NDV4842,

NDV3630I, NDV3933I, NDV4236I, NDV4842I,
NDV3630L, NDV3933L, NDV4236L, NDV4842L,
NDV3630IL, NDV3933IL, NDV4236IL, NDV4842IL

LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Direct Vent Gas Appliance
STANDARD: ANSI Z21.88a-2007/CSA 2.33a-2007,

CGA 2.17-M91, UL 307B

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.

C. BTU Specifi cations

Novus NDV NDV3630 NDV3933

Standing Pilot or IPI

Max/Min Input Rate (NG) 20,000/14,000 22,000/15,000

Orifi ce Size (NG) 0.083 0.089/#43

Max/Min Input Rate (LP) 20,000/15,000 22,000/15,000

Orifi ce Size (LP) 0.053 0.055/#54

Novus NDV NDV4236 NDV4842

Standing Pilot or IPI

Max/Min Input Rate (NG) 25,000/17,000 30,000/20,500

Orifi ce Size (NG) 0.093/#42 0.104/#37

Max/Min Input Rate (LP) 25,000/17,000 30,000/20,500

Orifi ce Size (LP) 0.058 0.063/#52

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.

NOT INTENDED FOR USE AS A PRIMARY 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. Architectural Test-
ing, 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.

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.

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, Stan-

dard 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 un-
plastered shall be considered combustible materials.

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/086

Note: The following requirements reference various
Massachusetts and national codes not contained in this
document.

G. Requirements for the Commonwealth of Massacusetts

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.

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 permanently
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) inch in size, “GAS

VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OB­STRUCTIONS”.

Inspection

The state or local gas inspector of the side wall horizon­tally 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 identi-
fi es “special venting systems”, the following requirements
shall be satisfi ed by the manufacturer:

• 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.

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 7

2

User Guide

2

Operating Instructions

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.

• 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/staysafe.

To 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 3 volt adapter plug and remove battieres 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 detect
presence of residual gas build-up. See Standing Pilot Light­ing instructions and Maintenance Tasks.

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 screen.

- Adjustable safety gate.

DECORATIVE DOORS

(NOT SHOWN)

SECTION 2.E.

HEARTH

CLEAR SPACE

SECTION 2.D.

B. Your Fireplace

WARNING! DO NOT operate fi replace before reading
and understanding operating instructions. Failure to

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

MANTEL

FIXED GLASS ASSEMBLY

SECTION 14.K.

Figure 2.1 General Operating Parts

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/088

C. Fan Kit (optional)

• Refer to Figure 2.1 for location of control.

F. Fixed Glass Assembly

See Section 14.K.

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.

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

3 FT

CLEAR SPACE

. IN FR

ONT OF F

IRE

PLA

CE

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. Before Lighting Fireplace

Before operating this fi replace for the fi rst time, have a
qualifi ed 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.

• 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.

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 appliance to overheat.

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.

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

WARNING! Risk of Fire/Asphyxiation! DO NOT operate

fi replace with fi xed glass assembly removed.

Determine if this fi replace has a standing pilot or an
Intellifi re ignition system. Ask your dealer or open control
access panel, look at valve assembly.

• A standing pilot ignition will have a red or black ignitor
button (refer to Figure 2.3).

• An Intellifi re ignition system will not have a button.

Red or Black

Button

Figure 2.3 Ignitor Button

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 9

I. Intermittent Pilot Ignition (IPI)

The IPI system may be operated with two D-cell batteries. When using batteries, unplug the transformer. To prolong battery
life, remove them when using the transformer.

Improper installation,

This appliance must be properly connected to a

venting system in accordance with the

This appliance must be installed in accordance with

local codes, if any; if not, follow ANSI Z223.1 or, in

This appliance needs fresh air for safe operation

and must be installed so there are provisions for

adequate combustion and ventilation air.

Canada, current CAN/CGA-B149.

manufacturer's installation instructions.

WARNING:

adjustment, alteration, service or maintenance can

cause injury or property damage. Refer to the

owner's information manual provided with the

appliance. For assistance or additional information

consult a qualified installer, service agency or the

department.

valve or turn the gas control knob. Never use tools. If the

lever or knob will not move by hand, don't try to repair it, call

a qualified service technician. Force or attempted repair may

result in a fire or explosion.

Immediately call a qualified service technician to inspect the

appliance and to replace any part of the control system and

C. Use only your hand to push in and move the gas control

• If you cannot reach your gas supplier, call the fire

D. Do not use this appliance if any part has been under water.

Hot while in operation. Do

CAUTION:

not touch. Keep children, clothing, furniture,

gas supplier.

any gas control which has been under water.

WARNING RISK OF FIRE

gasoline and other liquids having flammable vapors

away.

This appliance is intended to burn a specified gas

fuel only. Do not attempt to use with solid wood fuel

or another type of fuel. Do not attempt to modify or

use any other type of gas burner system.

Follow "B" in the safety information above on this label. If you don't

smell gas, go to the next step.

turn on the wall switch or set the thermostat to the desired setting.

GAS TO APPLIANCE" and call your service technician or gas supplier.

5. Wait five minutes to clear out any gas. If you then smell gas, STOP!

6. To turn on the burner, turn on all electric power to this appliance and

7. If the appliance will not operate, follow the instructions "TO TURN OFF

NATURAL GAS

For use with natural gas or propane. A conversion kit

before servicing. If for any reason the original wire

WARNING: Disconnect the electric power

as supplied by the manufacturer shall be used to

supplied with the appliance must be replaced, it must

be replaced with 105° C or its equivalent.

or push the gas control lever to the "OFF" position. Do not

force.

3. Push the gas control lever in and move to the "OFF" position

bed-sitting room.

convert this appliance to the alternative fuel.

* Also certified for installation in a bedroom or a

* For U.S. only!

33631D

4. Replace the control access panel.

or explosion may result causing property damage,

personal injury or loss of life.

WARNING: If you do not follow these instructions exactly, a fire

FOR YOUR SAFETY READ BEFORE LIGHTING

automatically lights the pilot. Do not try to light the pilot by

hand.

gas. Be sure to smell next to the floor because some gas is

heavier than air and will settle on the floor.

A. This appliance is equipped with an ignition device which

B. BEFORE LIGHTING smell all around the appliance area for

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/0810

your building.

• Immediately call your gas supplier from a neighbor's

• Do not try to light any appliance.

• Do not touch any electric switch; do not use any phone in

WHAT TO DO IF YOU SMELL GAS

LIGHTING INSTRUCTIONS

phone. Follow the gas supplier's instructions.

lowest setting.

automatically lights the pilot. Do NOT try to light the pilot by

hand.

1. STOP! Read the safety information above on this label.

2. Turn wall switch to the "OFF" position or thermostat to the

3. Turn off all electric power to the appliance.

4. This appliance is equipped with an ignition device which

TO TURN OFF GAS TO APPLIANCE

performed.

Due to high surface temperatures, keep children, clothing and furniture away.

1. Turn off wall switch or set thermostat to lowest setting.

2. Turn off all electric power to the appliance if service is to be

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

J. Standing Pilot Ignition

Improper installation,

This appliance must be properly connected to a

venting system in accordance with the

This appliance must be installed in accordance with

local codes, if any; if not, follow ANSI Z223.1 or, in

This appliance needs fresh air for safe operation

and must be installed so there are provisions for

adequate combustion and ventilation air.

Canada, current CAN/CGA-B149.

manufacturer's installation instructions.

adjustment, alteration, service or maintenance can

cause injury or property damage. Refer to the owner's

information manual provided with the appliance. For

assistance or additional information consult a

WARNING:

qualified installer, service agency or the gas supplier.

Hot while in operation. Do

not touch. Keep children, clothing, furniture,

gasoline and other liquids having flammable vapors

CAUTION:

WARNING RISK OF FIRE

away.

This appliance is intended to burn a specified gas

fuel only. Do not attempt to use with solid wood fuel

or another type of fuel. Do not attempt to modify or

Disconnect the electric power

use any other type of gas burner system.

WARNING:

For use with natural gas or propane. A conversion

before servicing. If for any reason the original wire

supplied with the appliance must be replaced, it must be

replaced with 105° C or its equivalent.

VENT

OFF

NATURAL GAS

bed-sitting room.

* Also certified for installation in a bedroom or a

PILOT

OFF

ON

11

OFF

PILOT

ON

8

ON

OFF

PIL

OT

5

5

* For U.S. only!

29097D

kit as supplied by the manufacturer shall be used to

convert this appliance to the alternative fuel.

ON

7

the manual gas valve will not push in or turn by hand, don't try

to repair it; call a qualified service technician. Force or

attempted repair may result in a fire or explosion.

Immediately call a qualified service technician to inspect the

appliance and to replace any part of the control system and any

gas control which has been under water.

C. Use only your hand to push in or turn knob. Never use tools. If

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

explosion may result causing property damage, personal

injury or loss of life.

D. Do not use this appliance if any part has been under water.

Stop! Read the safety information above on this label.

LIGHTING INSTRUCTIONS

WARNING: If you do not follow these instructions exactly, a fire or

FOR YOUR SAFETY READ BEFORE LIGHTING

lighting the pilot, follow these instructions exactly.

Be sure to smell next to the floor because some gas is heavier

than air and will settle on the floor.

A. This appliance has a pilot which must be lighted by hand. When

B. BEFORE LIGHTING smell all around the appliance area for gas.

building.

Follow the gas supplier's instructions.

• Immediately call your gas supplier from a neighbor's phone.

• Do not try to light any appliance.

• Do not touch any electric switch; do not use any phone in your

WHAT TO DO IF YOU SMELL GAS

lowest setting.

clear out any gas. If you then smell gas, STOP! Follow "B" in the

safety information above on this label. If you don't smell gas, go

to next step.

depressed to pass "PILOT" position.)

1. Turn wall switch to the "OFF" position or thermostat to the

2. Remove control access panel.

3. Turn manual gas valve to CLOSED. Wait five [5] minutes to

4. Turn gas line to "OPEN".

5. Turn pilot knob clockwise to "OFF". (Knob may have to be

6. Locate pilot assembly inside appliance.

7. Locate red ignitor button.

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 11

4. OPEN

3. CLOSED

3. Turn manual gas valve to "CLOSED position. Do not force.

4. Replace control access panel.

TO TURN OFF GAS TO APPLIANCE

12-15 times until small blue pilot flame appears.

should remain lit. If pilot goes out, wait 5 minutes and repeat

Steps 3-9.

OFF GAS TO APPLIANCE" and call your service technician or

gas supplier.

hand.

1. Turn off wall switch or set thermostat to lowest setting.

2. Remove control access panel.

Due to high surface termperatures, keep children, clothing and furniture away.

8. Turn pilot knob to "PILOT" and push in.

9. Continue to hold in pilot knob and push the red ignitor button

10. Continue to hold in pilot knob for approximately one minute. Pilot

11. Release and turn knob counterclockwise to "ON".

12. If appliance will not operate, follow the instructions "TO TURN

NOTE: To light main burner, turn wall switch to "ON". Do not light by

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

K. After Appliance is Lit

Initial Break-in Procedure

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

• Turn the appliance off and allow it to completely cool.

• Remove and 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 ap­pliance break-in.

• Some people may be sensitive to smoke and odors.

• Smoke detectors may activate.

L. Frequently Asked Questions

ISSUE SOLUTIONS

Condensation on the glass

Blue fl ames

Odor from appliance

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
allowed 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 materials from manufacturing. Odor may also be released from fi nishing
materials and adhesives used near the appliance. These circumstances may require additional
curing related to the installation environment.

Film on the glass

Metallic noise

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. A non-abrasive cleaner such as gas appliance 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.

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/0812

3

3

Maintenance and Service

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

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

A. Maintenance Tasks-Homeowner

Installation and repair should be done by a qualifi ed technician
only. The appliance 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 appliance must be
kept clean.

CAUTION! Risk of Burns! The appliance 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 appliance and set
aside on work surface.

• See Section 14.K 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 fi replace glass cleaner
(consult with your dealer)

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

• Reinstall door or decorative front.

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 or dust surfaces.

Remote Control

Frequency: Seasonally
By: Homeowner
Tools needed: Replacement batteries and remote control

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 3 volt adapter plug on IPI models.

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 13

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-Service Technician

The following tasks must be performed by a qualifi ed tech-
nician.

Gasket Seal and Glass Assembly Inspection

Frequency: Annually
By: Service Technician
Tools 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: 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: 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 appliance if fi rebox has been perforated.

Control Compartment and Firebox Top

Frequency: Annually
By: Service Technician

Tools needed: Protective gloves, vacuum cleaner, dust

cloths

• Vacuum 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.

Burner Ignition and Operation

Frequency: Annually
By: Service Technician
Tools 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 ember materials 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.N. 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 Figures 3.1
and 3.2 for proper pilot fl ame pattern. Clean or replace
orifi ce spud as necessary.

• Inspect thermocouple/thermopile or IPI fl ame sensing rod
for soot, corrosion and deterioration. Clean with emery
cloth or replace as required.

• Verify thermocouple/thermopile or IPI millivolt output.
Replace as necessary.

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/0814

(Either cobrahead or SIT)

PRODUCT SPECIFIC

Figure 3.1 IPI Flame Patterns

Figure 3.2 Standing Pilot Flame Patterns

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 15

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

VERTICAL TERMINATION CAP

(SECTION 10.F. )

NOTE: An installation will have either a
vertical termination or a horizontal
termination. It will not have both (as

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

shown).

STORM COLLAR
(SECTION 10.E. )

VENT PIPE PENETRATES ROOF
PREFERABLY WITHOUT AFFECTING
ROOF RAFTERS

Installer Guide

VENT PIPE (SECTION 8)

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

HORIZONTAL TERMINATION CAP

(SECTION 10.H.)

FRAMING/HEADER
(SECTION 5)

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

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

OPTIONAL
WALL SW IT CH
(Section 12.G.)

MANTEL AND MANTEL LEG
(SECTION 5.D. & 13.A.)

SURROUND (SECTION 14.M.)

GAS LINE
(SECTION 11)

Figure 4.1 Typical Appliance System

HEARTH EXTENSION
(Section 13.E.)

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/0816

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.

• 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
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 High temperature caulking material
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
Noncorrosive leak check solution
1/2 - 3/4 inch length, #6 or #8 Self-drilling screws
One 1/4 inch 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,
incomplete or substitute components. Keep appliance dry.

Hearth & Home Technologies 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/Electric Shock! DO
NOT use this appliance if any part has been under water.

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

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 17

5

5

Framing and Clearances

A. Select Appliance Location

When selecting a location for your 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.

B

1/2 in. (13 mm)

min. appliance

to combustibles

Drywall

B

A

Top Vent

One 90° elbow

Horiz Term

In addition to these framing dimensions, also reference the
following sections:

• Clearances and Mantel Projections (Sections 3.C. and 3.D.)

• Vent Clearances and Framing (Section 6)

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.

1 in. (25 mm)

min. pipe to

combustibles

D

A

G

Alcove

Installation

C

48 in.

(1219 mm)

maximum

Rear vent

One 45° elbow

Horiz Term

D

1/2 in. (13 mm) min.

appliance to

combustibles

A

E

1 in. (25 mm)

min. pipe to

combustibles

Model A B C D E F G

NDV3630 inches 36 33-1/2 19-5/8 43-3/8 47 53-1/4 37

NDV3933 inches 39 35-1/2 19-5/8 43-3/8 47 53-1/4 40

NDV4236 inches 42 37-5/8 19-5/8 43-3/8 47 53-1/4 43

NDV4842 inches 48 41-7/8 19-5/8 43-3/8 47 53-1/4 49

Figure 5.1 Appliance Locations

A

E

Rear Vent

One 90° elbow

Vert Term

mm 914 851 498 1102 1194 1353 940

mm 991 902 498 1102 1194 1353 1016

mm 1067 956 498 1102 1194 1353 1092

mm 1219 1064 498 1102 1194 1353 1245

No elbows

Horiz Term

A

Rear Vent

Two 90° elbows

Horiz Term

C

A

F

F

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/0818

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 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 high temperature caulk to
seal gaps. Gas line holes and other openings should be
caulked with high temp caulk or stuffed with unfaced insu­lation. If the appliance is being installed on a cement slab,
a layer of plywood may be placed underneath to prevent
conducting cold up into the room.

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.

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

1/2 in.

(13 mm)

Combustible flooring may be installed next
to the front of the appliance.

Clearance to Ceiling

30 in. (762 mm)

0 in. TO LEVEL

OF STANDOFFS

1/2 in.

(13 mm)

Drywall

0 in.

Note: If the inside of the framed cavity is to be fi nished,
the framing dimensions must include the fi nished surface.

If drywall is to be attached to the rear wall, the depth
must be measured from the drywall surface.

D

B

36 in.

(914 mm)

Combustible Object

Figure 5.2 Clearances to Combustibles

0 in.

Model

NDV3630 36 in./914 mm 34-7/8 in./886 mm 19-5/8 in./498 mm 10 in./254 mm
NDV3933 39 in./991 mm 34-7/8 in./886 mm 19-5/8 in./498 mm 10 in./254 mm
NDV4236 42 in./1067 mm 34-7/8 in./886 mm 19-5/8 in./498 mm 10 in./254 mm
NDV4842 48 in./1219 mm 34-7/8 in./886 mm 19-5/8 in./498 mm 10 in./254 mm

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 19

Rough Opening

(Width)

C

A

A

B

Rough Opening

(Height)

C

Rough Opening

(Depth)

D

Rough Opening

(DVP Pipe)

D. Mantel and Wall Projections

WARNING! Risk of Fire! Comply with all minimum clear­ances to combustibles 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).

Mantel Legs or Wall Projections

Top of
Appliance

Drywall

Mantels

30 in. minimum

to ceiling

18

17

16

14-1/2

15-1/4

16

15

14

13

12-1/4

13-3/4

13

12

11

10

11-1/2

9

10-3/4

8

7

6

5

6-1/4

7-3/4

7

4

3

5-1/2

5

10

9-1/4

8-1/2

Measured from top of hood (in inches)

Figure 5.3 Clearances To Mantels Or Other Combustibles Above
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

Figure 5.4 Mantel Leg or Wall Projections (Acceptable on both
sides of opening)

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/0820

6

6

Termination Locations

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 fi re.

Horizontal
overhang

24 in. min.

(610 mm)

Termination

Cap

20 in.

(508 mm)

Lowest

Discharge

Opening

Vertical
wall

Measure vertical clearances from this surface.

Measure horizontal clearances from this surface.

(See Figure 6.5 for specifi c clearances)

Figure 6.2 Clearance To Horizontal Termination Cap

Direct Vent Gas, Wood or Fuel

Oil Termination

20 in.

(508 mm)

(minimum) to

Perpendicular

Wall

(DV only)

18 in.

(457 mm)

A

B

Storm Collar

Roof

Flashing

H (min.) - Minimum height
from roof to lowest
discharge opening.

Roof Pitch H (Min.) Ft. Roof Pitch H (Min.) Ft.

Flat to 6/12 1.0* Over 11/12 to 12/12 4.0
Over 6/12 to 7/12 1.25* Over 12/12 to 14/12 5.0
Over 7/12 to 8/12 1.5* Over 14/12 to 16/12 6.0
Over 8/12 to 9/12 2.0* Over 16/12 to 18/12 7.0
Over 9/12 to 10/12 2.5 Over 18/12 to 20/12 7.5
Over 10/12 to 11/12 3.25 Over 20/12 to 21/12 8.0

* 3 ft. minimum in snow regions

Figure 6.1 Minimum Height From Roof To Lowest Discharge
Opening

X

12

Roof Pitch
is X / 12

Gas

Termination

Termination Caps Staggered Height

A Gas Termination Wood or Fuel Oil Termination
B 6 in.

Figure 6.3 Staggered Termination Caps

(152 mm) min. 20 in. (508 mm) min.

Direct Vent Gas, Wood or Fuel

Oil Termination

Wood, Gas or

Fuel Oil

Termination

20 in. min. *

(508 mm)

20 in.

(508 mm)

(minimum) to

Perpendicular

Wall

(DV only)

Termination Caps Same Height

* If using decorative cap cover(s), this distance may
need to be increased. Refer to the installation instruc­ tions supplied with the decorative cap cover.

Figure 6.4 Leveled Termination Caps

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 21

H

D

E

V

L

B

C

Fixed

V

Closed

V

F

B

V

Openable

B

V TERMINATION CAP

V

Fixed

Closed

J

A

B

Measure vertical clearances

from this surface

T

Measure horizontal clearances

Covered Alcove

from this surface.

Dimension Descriptions
A Clearance above the ground, a veranda, porch, deck or balcony - 12

in. (30 cm) minimum. *

B Clearance to window or door that may be opened – 10,000 BTUs

or less, 6 in. (15 cm) minimum; 10,000-50,000 BTUs, 9 in. (23 cm)
minimum; over 50,000 BTUs, 12 in. (30 cm) minimum. *

C Clearance to permanently closed window – 12 in. (30 cm) minimum

- recommended to prevent condensation on window.

D Vertical clearance to ventilated soffi t located above the termination

within a horizontal distance of 2 ft (60 cm) from the centerline of the

termination – 18 in. (46 cm) minimum. **
E Vertical clearance to unventilated soffi t - 12 in. (30 cm) minimum. **
F Clearance to outside corner - 6 in. (15 cm) minimum.
G Clearance to inside corner - 6 in. (15 cm) minimum.
H Not to be installed above a meter/regulator assembly within 3 ft (90

cm) horizontally* from the center line of the regulator (Canada only)
I Clearance to service regulator vent outlet – 3 ft (.91 m) U.S. minimum

and 3 ft (.91 m) Canada minimum. *
J Clearance to non-mechanical air supply inlet into building or the

combustion air inlet to any other appliance – 9” (23 cm) U.S. minimum

and 12 in. (30 cm) Canada minimum. *
K Clearance to mechanical air supply inlet - 3 ft (.91 m) U.S. minimum

and 6 ft (1.8 m) Canada minimum. *
L Clearance above a paved sidewalk or paved driveway located on public

property - 7 ft (2.1 m) minimum.
A vent may not terminate directly above a sidewalk or paved driveway

which is located between two single family dwellings and serves both

dwellings.
M Clearance under veranda, porch, deck or balcony - 12 in. (30 cm)

minimum. * Recommended 30 in. (76 cm) for vinyl or plastic.
Only permitted if veranda, porch, deck or balcony is fully open on a

minimum of 2 sides beneath the fl oor. *
N Vertical clearance between two horizontal termination caps – 12 in. (30

cm) minimum.

Figure 6.5 Minimum Clearances for Terminations

O

X

AIR SUPPLY INLET

R

Applications

N

V

V

B

X

GAS METER

Q

P

V

S

M

I

RESTRICTION ZONE
(TERMINATION NOT
ALLOWED)

V

V

Clearances to Electrical Service

K X

U

G

V

A

V

W

lectrical

Service

D*

V

V

U

V

O Horizontal clearance between two horizontal termination caps – 12 in.

(30 cm) minimum.
P 6” - Non-vinyl sidewalls
12” – Vinyl sidewalls
Q 18” – Non-vinyl soffi t and overhang
42” – Vinyl soffi t and overhang

S

min

T

1 cap 3 ft 2 x S actual
2 caps 6 ft 1 x S actual
3 caps 9 ft 2/3 x S actual
4 caps 12 ft 1/2 x S actual

S

= # term caps x 3 T

min

= (2/# term caps) x S (actual)

max

R 8 ft.
U 6” min. – Clearance from sides of electrical service.
W 12” min. – Clearance above electrical service.
* As specifi ed in CGA B149 Installation Codes
Note: Local codes or regulations may require different clearances.
** Clearance required to vinyl soffi t material – 30 in. (76 cm) minimum.
Note: Location of the vent termination must not interfere with access

to the electrical service.
WARNING!
In the U.S.: Vent system termination is NOT permitted in screened

porches. You must follow side wall, overhang and ground clearances

as stated in the instructions.
In Canada: Vent system termination is NOT permitted in screened

porches. Vent system termination is permitted in porch areas with two

or more sides open. You must follow all side wall, overhang and ground

clearances as stated in the instructions.
Hearth & Home Technologies assumes no responsibility for the improper

performance of the appliance when the venting system does not meet

these requirements.

max

CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYL SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE INSTALLED.

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/0822

7

7

Vent Information and Diagrams

A. Approved Pipe

This appliance is approved for use with Hearth & Home
Technologies DVP and SLP venting systems. Refer to Sec-

Î

tion 16B for vent component information.
DO NOT mix pipe, fi ttings or joining methods from different

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.

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

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).

• Measurements are made from the appliance outer wrap,

not from the standoffs.

• Horizontal terminations are measured to the outside

mounting surface (fl ange of termination cap) (see Figure

6.5).

• Vertical terminations are measured to bottom of

termination cap.

• Horizontal pipe installed level with no rise.

Effective Height/Length

mm

DVP Pipe

(see chart)

Effective

Height/Length

Pipe

DVP4 4 102

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

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

inches

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 (216 mm)
inches horizontal run and 8-1/2 (216 mm) inches vertical
run. A length of straight pipe is allowed between two 45º
elbows (see Figure 7.1).

Vertical

12 in.

8-1/2 in.

Horizontal

8-1/2 in.

Effective

Height/Length

SLP Pipe

(see chart)

Figure 7.2 Pipe Effective Length

Î

Effective Height/Length

Pipe

SLP4 4 102

SLP6 6 152
SLP12 12 305
SLP24 24 610
SLP36 36 914
SLP48 48 1219
SLP6A 2 - 6 51 - 152

SLP12A 2 - 12 51 - 305

inches

mm

Figure 7.1

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 23

E. Vent Diagrams

To replace the fi rst starter elbow with two 45° elbows, refer
to Figure 7.4. All other 90° elbows can be replaced with
two 45° elbows.

General Rules:

• SUBTRACT 3 ft. from the total H measurement for each
90° elbow installed horizontally.

• SUBTRACT 1-1/2 ft. from the total H measurement for
each 45° elbow installed horizontally.

• A maximum of three 90° elbows (or six 45° elbows) may
be used in any vent confi guration. Some elbows may be
installed horizontally.

• Elbows may be placed back to back anywhere in the
system as long as the fi rst 90° elbow is a starter elbow
except as shown in Figure 7.3.

• When penetrating a combustible wall, a wall shield
fi restop must be installed.

• When penetrating a combustible ceiling, a ceiling fi restop
must be installed.

• Horizontal runs of vent do not require vertical rise;
horizontal runs may be level.

Note: The NDV series appliances can adapt to SLP series

Î

vent pipe when venting off the top of the appliance. You
must use a DVP-SLP24 adapter which can only be attached
to the appliance starting collar.

When looking at horizontal termination diagrams, the
adapter is not counted as part of the minimum vertical

min.) requirements.

(V

1

Whether horizontal or vertical termination, the adapter is
counted as part of the maximum vertical limitations.

All venting rules for the vent run must still be followed.

HORIZONTAL EXAMPLE

V1 = 1 ft.

H

= 11 ft.

1

max.

DVP

1. Top Vent - Horizontal Termination

Two 45° Elbows

Installation requirements to replace the fi rst 90° elbow
with two 45° elbows:

4 ft min.
(1.22 m)

25 ft max.

(7.62 m)

12 ft (3.66 m) min.

60 ft (18.29 m) max.

H

= 11 ft.

1

max

SLP

VERTICAL EXAMPLE

12 ft (3.66 m) min.

60 ft (18.29 m) max.

V1 = 1 ft.

DVP-SLP24

DVP-SLP24

Adapter

Figure 7.3 Minimum Installation Requirements for Two 45°
Elbows-Top Vent-Horizontal Termination

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/0824

DVP

SLP

1. Top Vent - Horizontal Termination - (continued)

One Elbow

Î

H

1

Figure 7.4

Two Elbows

Î

Note: Subtract 3 ft (914 mm) from the total horizontal
measurement for each 90° elbow installed horizontally.
Subtract 1-1/2 ft (457 mm) from the total horizontal
measurement for each 45° elbow installed horizontally.

V

V1 Min V1 Max H1 Max.

0* - 24 in./635 mm
4 in./102 mm - 4 ft/1.22 m
6 in./152 mm - 6 ft/1.83 m

12 in./305 mm - 11 ft/3.35 m

1

18 in./457 mm - 18 ft/5.49 m
24 in./610 mm - 25 ft/7.62 m

- 25 ft/7.62 m (DVP) 25 ft/7.62 m

- 23 ft/7.62 m (SLP) 25 ft/7.62 m

* You may install the elbow directly on top of the

appliance (DVP only).

V1 min. V1 max. H1+H2 max. H1+H2+H3 max.

6 in./152 mm - 6 ft/1.83 m ­12 in./305 mm - 11 ft/3.35 m 11 ft/3.35m
18 in./457 mm - 18 ft/5.49 m 18 ft/5.49m
24 in./610 mm - 25 ft/7.62m 25 ft/7.62m

- 25 ft/7.62 m (DVP) 25 ft/7.62m 25 ft/7.62m

- 23 ft/7.01 m (SLP) 25 ft/7.62m 25 ft/7.62m

Figure 7.5

H

Installed

Vertically

H

3

Installed

Horizontally

V

H

1

H

2

2

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/08 25

1

1. Top Vent - Horizontal Termination - (continued)

Î

Three Elbows

H

V1 min. V1+V2 max. H1+H2 max.

12 in./305 mm 24 ft/7.32 m (DVP) 19 ft/5.79 m
12 in./305 mm 22 ft/6.71 m (SLP) 19 ft/5.79 m

Installed

Vertically

2

V

2

V

1

H

1

Figure 7.6

Heatilator • Novus NDV Series • 4055-187 Rev F • 06/0826