Hearth and Home Technologies NOVUS 4055-187 User Manual

DO NOT

DISCARD

Model(s):

NDV3630, NDV3933, NDV4236, NDV4842,
NDV3630I, NDV3933I, NDV4236I, NDV4842I,
NDV3630L, NDV3933L, NDV4236L, NDV4842L,
NDV3630IL, 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. V • 1/12 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

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).

Type Typ e o f 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/CGA 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):

MADE MADE IN IN USAUSA

XXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXX

Model Number

Serial Number

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/122

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. Before Lighting Fireplace 10
I. Lighting Instructions (IPI) 11
J. Lighting Instructions (Standing Pilot) 12
K. After Appliance is Lit 13
L. Flame Adjustment Control 13
M. Frequently Asked Questions 13

3 Maintenance and Service

A. Maintenance Tasks-Homeowner 14
B. Maintenance Tasks-Service Technician 15

Installer Guide

4 Getting Started

A. Typical Appliance System 17
B. Design and Installation Considerations 18
C. Tools and Supplies Needed 18
D. Inspect Appliance and Components 18

5 Framing and Clearances

A. Select Appliance Location 19
B. Constructing the Appliance Chase 20
C. Clearances 20
D. Mantel and Wall Projections 21

6 Termination Locations

A. Vent Termination Minimum Clearances 22

7 Vent Information and Diagrams

A. Approved Pipe 24
B. Vent Table Key 24
C. Use of Elbows 24
D. Measuring Standards 24
E. Vent Diagrams 25

8 Vent Clearances and Framing

A. Pipe Clearances to Combustibles 34
B. Wall Penetration Framing 34
C. Install the Ceiling Firestop 35
D. Install Attic Insulation Shield 36

9 Appliance Preparation

A. Top Vent 37
B. Rear Vent 38
C. Secure and Level the Appliance 39

10 Installing Vent Pipe

A. Assemble Vent Sections (DVP only) 40
B. Assemble Vent Sections (SLP Pipe Only) 41
C. Assemble Slip Sections 41
D. Secure the Vent Sections 42
E. Disassemble Vent Sections 42
F. Install Decorative Ceiling Components (SLP only) 43
G. Install Metal Roof Flashing 44
H. Assemble and Install Storm Collar 44
I. Install Vertical Termination Cap 45
J. Install Decorative Wall Components SLP only) 45
K. Heat Shield Requirements for Horizontal
Termination 45

11 Shrouds

A. HHT Shrouds 47
B. Field Constructed Shrouds 47

12 Gas Information

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

13 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

14 Finishing

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

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/12 3

15 Appliance Setup

A. Remove the Packaging 55
B. Remove Screen Package Assembly 55
C. Remove the Shipping Materials 55
D. Removing 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. Replacing Fixed Glass Assembly 56
K. Air Shutter Setting 56
L. Remove Screen Protector 57
M. Unpackage the Hood & Floor Cover 57
N. Install Hood 57
O. Install Floor Cover 57
P. Close the Screen Assembly 58

16 Troubleshooting

A. Standing Pilot Ignition System 59
B. Intellifi re Ignition System 61

17 Reference Materials

A. Appliance Dimension Diagram 63



B. Vent Components Diagrams 64
C. Service Parts 72
D. Optional Components 83
E. Contact Information 86

 = Contains updated information.

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/124

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.

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/12 5

All replacement parts

ond warranty period

be

B. Limited Lifetime Warranty (continued)

WARRANTY CONDITIONS:

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This warranty is void if:

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

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/126

1

1

Listing and Code Approvals

A. Appliance Certifi cation

MODELS: NDV3630, NDV3933, NDV4236 and

NDV4842 Series

LABORATORY: Underwriters Laboratories, Inc. (UL)
TYPE: Vented Gas Fireplace Heaters
STANDARD: ANSI Z21.88b-2008/CSA 2.33b-2008

NOTICE: This installation must conform with local codes

or, in the absence of local codes, with the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and
Propane Installation Code, CSA B149.1.

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
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

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.

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 T est Method for Behavior of Materials in a V ertical
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.

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 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.

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/12 7

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

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. V • 1/128

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/safety-information.

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

CLEAR SPACE

SECTION 2

(not required)

B. Y our 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

HEARTH

Figure 2.1 General Operating Parts

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/12 9

C. Fan Kit (optional)

• Refer to Figure 2.1 for location of control.

F. Fixed Glass Assembly

See Section 15.

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. IN FRONT OF FIREPLACE

CLEAR SPACE

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. V • 1/1210

I. Lighting Instructions (IPI)

• For normal use, activate/deactivate your fi replace with the wall switch or remote control.

• 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.

• If your fi replace must be deactivated for service or an extended period of time, follow the instructions below.

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 • Novus NDV Series • 4055-187 Rev. V • 1/12 11

J. Lighting Instructions (Standing Pilot)

• For normal use, activate/deactivate your fi replace with the wall switch or remote control.

• If your fi replace must be deactivated for service or an extended period of time, follow the instructions below.

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 has a pilot which

must be lighted by hand. When
lighting the pilot, follow these in­structions exactly.

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.

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

WARNING:

DO NOT CONNECT 110 VAC 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.

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

C. Use only your hand to push in or

turn the gas control knob. Never use
tools. If the knob will not push in or
turn by hand, DO NOT try to repair
it, call a qualifi ed service technician.
Force or attempted repair may re­sult in a fi re or explosion.

D. 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.

Final inspection by

1. Open control access panel.

2. Turn off all electric power to

3. Push in gas control knob

to “OFF”.
Note: Knob cannot be turned from “PILOT” to “OFF”

unless knob is pushed in slightly. DO NOT force.

4. Open the fi xed glass assembly. You may need to

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

6. Find the pilot. The pilot is inside

7. Turn knob on gas control counterclockwise

8. Push in control knob all the way and hold in. Immedi-

9. Reinstall fi xed glass assembly. Reinstall decorative

10. Turn gas control knob counterclockwise

11. Turn on all electric power to the appliance.

12. To light burner, turn the wall control or on/off switch

1. Turn off all electric power to the appliance if ser-

2. Open control access panel.

3. Move switch to “OFF” position.

4. Push in gas control knob slightly and turn clock-

5. Close control access panel.

LIGHTING

INSTRUCTIONS

the appliance.

slightly and turn clockwise

remove the decorative front.

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 don’t smell gas,
go to next step.

combustion chamber next to the
main burner

to “PILOT”.

ately depress red or black piezo button. It may require
several depressions of the red or black piezo button
until PILOT lights. If PILOT light does not light after
10 seconds, return to step 3. Continue to hold the
control knob in for about one minute after the pilot is
lit. Release knob and it will pop back out. Pilot should
remain lit. If it goes out, repeat steps 3 through 6.

• If knob does not pop up when released, stop and
immediately call your service technician or gas
supplier.

• If the pilot will not stay lit after several tries, turn
the gas control knob to “OFF” and call your ser­vice technician or gas supplier.

front.

to “ON”. Close access panel.

to “ON”.

TO TURN OFF

GAS TO APPLIANCE

vice is to be performed.

wise to OFF”. DO NOT force.

464-903H

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/1212

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. Flame Adjustment Control

Some appliances come equipped with a high/low fl ame
adjustment control.

• Open control access panel

• Compare your valve to Figures 2.4 & 2.5.

• Adjust the fl ame by turning knob as indicated in the photo
matching your valve.

Indicator

HILO

Figure 2.4 DEXEN Valve - IntelliFire Ignition System

Indicator

HI LO

Figure 2.5 SIT Valve - Standing Pilot Ignition System

M. Frequently Asked Questions

ISSUE SOLUTIONS

Condensation on the glass This is a result of gas combustion and temperature variations. As the appliance warms, this

condensation will disappear.

Blue fl ames 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.

Odor from appliance 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 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.

Metallic noise 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.

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

In an IntelliFire 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.

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/12 13

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
T ools 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 15 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
T ools 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. V • 1/1214

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 .

• 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 15 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 15. 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. Polish with fi ne
steel wool or replace as required.

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

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/12 15

(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. V • 1/1216

4

4

A. T ypical 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)

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)

shown).

STORM COLLAR
(SECTION 10)

VENT PIPE PENETRATES ROOF
PREFERABLY WITHOUT AFFECTING
ROOF RAFTERS

Installer Guide

VENT PIPE (SECTION 8)

CEILING FIRESTOP
ON FLOOR OF ATTIC
(SECTION 8)

HORIZONTAL TERMINATION CAP

FRAMING/HEADER
(SECTION 5)

(SECTION 10)

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

FRAMING HEADED OFF
IN CEILING JOISTS
(SECTION 8)

OPTIONAL

WALL SWITCH

(Section 12)

MANTEL AND MANTEL LEG
(SECTION 5 & 13)

SURROUND (SECTION 14)

GAS LINE
(SECTION 11)

Figure 4.1 Typical Appliance System

HEARTH EXTENSION
(Section 13)

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/12 17

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 Noncorrosive 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 inch length, #6 or #8 Self-drilling screws
Caulking material (300ºF minimum continuous exposure

rating)
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. V • 1/1218

ABCDEFG

in.

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

mm

914 851 498 1102 1194 1353 940

in.

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

mm

991 902 498 1102 1194 1353 1016

in.

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

mm

1067 956 498 1102 1194 1353 1092

in.

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

mm

1219 1064 498 1102 1194 1353 1245

NDV4842

Model

NDV3630

NDV3933

NDV4236

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

A

G

Alcove

Installation

C

(1219 mm)

maximum

1/2 in. (13 mm) min.

48 in.

Rear vent

One 45° elbow

Horiz Term

D

appliance to

combustibles

A

D

E

1 in. (25 mm)

min. pipe to

combustibles

Figure 5.1 Appliance Locations

E

Rear Vent

One 90° elbow

Vert Term

A

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/12 19

No elbows

Horiz Term

A

C

Rear Vent

Two 90° elbows

Horiz Term

A

F

F

Model

A

Rough Opening

(Width)

B

Rough Opening

(Height)

C

Rough Opening

(Depth)

D

Rough Opening

(DVP Pipe)

D

Rough Opening

(SLP Pipe)

NDV3630

36 in./914 mm 34-7/8 in./886 m m 19-5/8 in./498 mm 10 in./254 mm 9 in./229 mm

NDV3933

39 in./991 mm 34-7/8 in./886 m m 19-5/8 in./498 mm 10 in./254 mm 9 in./229 mm

NDV4236

42 in./1067 mm 34-7/8 in./886 mm 19-5/8 in./498 mm 10 in./254 mm 9 in./229 mm

NDV4842

48 in./1219 mm 34-7/8 in./886 mm 19-5/8 in./498 mm 10 in./254 mm 9 in./229 mm

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.

1/2 in.

(13 mm)

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 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.

Note: If the inside of the framed cavity is to be

1/2 in.

(13 mm)

Drywall

fi nished, th e 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.

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

Clearance to Ceiling

30 in. (762 mm)

36 in.

(914 mm)

Combustible Object

0 in. TO LEVEL

OF STANDOFFS

0 in.

0 in.

D

B

C

A

Figure 5.2 Clearances to Combustibles

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/1220

D. Mantel and Wall Projections

WARNING! Risk of Fire! Comply with all minimum clear ­ances to combustibles as specifi ed. Framing or fi nishing
material closer than the minimums listed must be construct­ed entirely of non-combustible 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

13-3/4

12

11

10

10

10-3/4

11-1/2

9

8

7

6

5

4

5-1/2

6-1/4

7

3

5

9-1/4

8-1/2

7-3/4

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. V • 1/12 21

Gas, Wood or Fuel Oil

Termination Cap

B

Gas

Termination

Cap **

A *

*

If using decorative cap cover(s), t his distance may need to be
increased. Refer to the installation inst ructions supplied with the
decorative cap cover.

**

6 in. (minimum) up to 20 in.

152 mm/508 mm

18 in. minimum

457 mm

20 in. and over 0 in. minimum

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.

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

AB

Storm Collar

Roof

Flashing

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

Figure 6.1 Minimum Height From Roof To Lowest Discharge
Opening

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

* 3 ft. minimum in snow regions

X

12

Roof Pitch
is X / 12

Figure 6.2 Multiple Termination Caps

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/1222

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

X

Measure vertical clearances

from this surface

R

T

Measure horizontal clearances

from this surface.

Covered Alcove

Applications

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 6.3 Minimum Clearances for Terminations

O

AIR SUPPLY INLET

V

V

B

X

GAS METER

Q

P

V

S

N

G

V

M

I

RESTRICTION ZONE
(TERMINATION NOT
ALLOWED)

V

V

K X

U

A

V

W

lectrical

Service

D*

V

V

U

V

Clearances to Electrical Service

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

max

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. Y ou 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.

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. V • 1/12 23

7

7

Pipe

inches

mm

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

Effective Height/Length

Pipe

inches

mm

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

Effective Height/Length

Vent Information and Diagrams

A. Approved Pipe

This appliance is approved for use with Hearth & Home
T echnologies DVP and SLP venting systems. Refer to Sec­tion 17.B 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

DVP Pipe

(see chart)

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

Figure 7.1

12 in.

8-1/2 in.

Horizontal

8-1/2 in.

Heatilator • Novus NDV Series • 4055-187 Rev. V • 1/1224

Effective

Height/Length

SLP Pipe

(see chart)

Figure 7.2 Pipe Effective Length

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 ser i es a p pli a nc es c a n ad ap t to S LP se ri e s
vent pip e when vent ing off t he top of th e applia nce. 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. V • 1/12 25

DVP

SLP

1. Top Vent - Horizontal Termination - (continued)

One Elbow

V

1

H

1

Figure 7.4

Two Elbows

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.

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
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. V • 1/1226

1