INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
WARNING: Carefully review the instructions supplied with the decorative type unvented room heater for
the minimum fireplace size requirement.
Do not install the appliance in this firebox, unless this firebox meets the minimum dimensions required for
the installation.
This appliance may be installed in an aftermarket permanently located, manufactured (mobile) home,
where not prohibited by local codes. This appliance is only for use with the type of gas indicated on the
rating plate. This appliance is not convertible for use with other gases.
WARNING: For use only with a listed, gas-fired unvented decorative room heater not to exceed 40,000
Btu/H.
Do not build a wood fire.
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in serious injury, death, or property damage.
— Do not store or use gasoline or other flammable 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.
• Leave the building immediately.
• 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 re department.
— Installation and service must be performed by a qualified installer, service agency or the gas supplier.
Page 2
Thank you for your purchase. We appreciate your
business!
Please carefully read and follow all instructions in this manual. Pay
special attention to all warnings and safety information.
Following these safety, care, and operation instructions will help
ensure many years of dependable and enjoyable service from your
fireplace.
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Please read and understand these instructions before installing
or operating.
WARNING: Improper installation, adjustment,
alteration, service or maintenance can cause injury
or property damage. Refer to this manual for correct
installation and operational procedures. For assistance or additional information consult a qualified
installer, service agency or the gas supplier.
This appliance may be installed in an aftermarket,*
permanently located, manufactured (mobile) home,
where not prohibited by local codes.
* Aftermarket: Completion of sale, not for purpose of resale, from
the manufacturer
WARNING: This product contains and/or generates
chemicals known to the state of California to cause
cancer or birth defects or other reproductive harm.
IMPORTANT: Read this owner’s manual carefully and
completely before trying to assemble, operate or
service this heater. Improper use of this fireplace can
cause serious injury or death from burns, fire, explosion, electrical shock and carbon monoxide poisoning.
WARNING: Do not allow fans to blow directly into
the firebox. Avoid any drafts that alter burner flame
patterns. Ceiling fans can create drafts that alter
burner flame patterns. Altered burner patterns can
cause sooting.
WARNING: Do not use a blower insert, heat exchanger insert or other accessory not approved for
use with this firebox.
Do not place clothing or other flammable material on
or near the appliance. Never place any objects in the
firebox or on logs.
Firebox front and screen become very hot when running heater. Keep children and adults away from hot
surface to avoid burns or clothing ignition. Firebox will
remain hot for a time after shutdown. Allow surface
to cool before touching.
Carefully supervise young children when they are in
the room with firebox.
WARNING: Any change to this firebox or its controls
can be dangerous.
Comfortflame.US.com900563-00NC2
Page 3
SAFETY Continued
You must operate this fireplace with the provided
fireplace screen, hood if provided, in place. Make
sure these parts are in place and screens are closed
before running firebox. The supplied hood may not
be replaced with a hood which may be provided with
a log heater.
Keep the fireplace area clear and free from combustible materials, gasoline and other flammable vapors
and liquids.
THE FIREBOX CANOPY (HOOD) MUST NOT BE MODIFIED OR REPLACED WITH A CANOPY (HOOD) THAT
MAY BE PROVIDED WITH THE UNVENTED DECORATIVE
ROOM HEATER.
1. Do not use this firebox as a wood-burning fireplace. Use only
decorative unvented room heaters (log sets).
2. Do not add extra logs or ornaments such as pine cones,
vermiculite or rock wool. Using these added items can cause
sooting.
3. Use only the provided hood or appropriate hood accessory. See
Accessories on page 18.
4. Vent-free gas log heaters installed in these fireboxes require
fresh air ventilation to run properly. See Air for Combustion and
Ventilation, page 8.
•The individual manual shut-off must be a T-handle type valve.
•Unvented appliances may NOT be installed in bedrooms or
bathrooms.
•A working smoke detector must be installed in the area where
vent-free appliances are installed.
Seller of unvented propane or natural gas-fired supplemental room
heaters shall provide to each purchaser a copy of 527 CMR 30 upon
sale of the unit.
LOCAL CODES
Install and use heater with care. Follow all local codes. In the absence
of local codes, use the latest edition of The National Fuel Gas Code,
ANSI Z223.1/NFPA 54*. Firebox must be electrically grounded in
accordance with the National Electrical Code, ANSI/NFPA70 (latest
edition).
*Available from:
American National Standards Institute, Inc.
25West43rdStreet,4thoor
New York, NY 10036
National Fire Protection Association, Inc.
1 Batterymarch Park
Quincy, MA 02169-7471
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Page 4
PRODUCT FEATURES
LOCATING FIREBOX
OPERATION
This firebox is designed for use with approved ANSI Z21.11.2 decorative type unvented room heaters. (Physical size limitations apply.
Refer to minimum firebox requirements supplied with log heater.) It
requires no outside venting or chimney making installation easy and
inexpensive. When used without the blower, the firebox requires no
electricity making it ideal for emergency backup heat.
BLOWER ACCESSORY
The circulating models will accept a rotary type fan (model BK) accessory. The blower circulates heated air from the firebox into the
room. Use of blower is optional.
REFRACTORY BRICK LINER
Your firebox may feature a concrete refractory brick liner. As with all
concrete liners, this liner may develop slight cracks when exposed
to heat. These cracks will not affect the performance of the fireplace
or vent-free gas logs.
OPTIONAL FIBER AND PORCELAIN LINERS
For a vintage look, the fiber panels give a old masonry brick look and
are light weight and easy to install. For a modern look, the porcelain
The optional AK4 and AK4F air kit provides additional outdoor air
to improve burner efficiency and reduce build-up of condensation
in the living space. Follow the instructions included with the air kit.
PLANNING
Plan where you will install the firebox. This will save time and money
later when you install the firebox. Before installation, consider the
following:
1. Where the firebox will be located. Allow for wall and ceiling clear-
ances (see Installation Clearances, page 10).
2. Everything needed to complete installation.
3. These models CANNOT be installed in a bedroom unless the
maximum BTU rating of the installed vent-free log set is less than
10,000 Btu/Hr.
4. Proper air for combustion and ventilation (page 8).
Comfortflame.US.com900563-00NC4
Page 5
PRODUCT SPECIFICATIONS
32" MODELS
19
1
/2"
6"
5
/8"
16
1
/2"
3
4
/8"
Firebox Top View
22
36
3
/8"
7"
32
1
/4"
1
18
/4"
36
1
/2"
Outside Air
Kit Location
1
10
/2"
1
8
/4"
7"
29
34
3
/8"
1
/2"
1
2
/2"
Front View
1
/2"
12
7 5/8"
24"
1
/4"
8
1
3
/2"
7
/8"
6
1
/8"
8
1
/8"
13
1
3
/2"
7
6
/8"
1
10
/2"
Electrical
Outlet
1
3
/4"
Right Side View Left Side View
Figure 1 - Product Specifications 32'' Models
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Page 6
PRODUCT SPECIFICATIONS Continued
36" MODELS
36
25"
1
29
1
/8"
21
6"
1
/8"
Firebox Top View
1
8
/8"
/8"
21"
Outside
Air Kit
Location
10 3/8"
7"
7
34
/8"
1
/8"
41
43"
Front View
1
40
/4"
3
/8"
26
1
/2"
13
8
3
8
/8"
7
/8"
1
8
/4"
1
8
/4"
3 1/4"
1
/2"
2
3
/8"
7
1
/2"
8
1
/2"
11
Electrical
Outlet
Right Side View Left Side View
Figure 2 - Product Specifications 36'' Models
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Page 7
PRODUCT SPECIFICATIONS Continued
42" MODELS
23
1
40"
/4"
36 1/8"6"
1
/8"
Firebox Top View
1
/2"
4
27
50"
24"
22
1
/4"
Outside
Air Kit
Location
12
1
7
/8"
1
/8"
3
41
48
7
/8"
1
/8"
Front View
1
/4"
40"
5
/8"
10
14
10
1
8
/4"
1
/2"
2
1
/2"
3
/4"
1
/4"
1
/4"
8
1
/2"
2
5
7
/8"
1
10
/2"
3
/8"
13
Right Side View Left Side View
44
1
3
/4"
Electrical
Outlet
Figure 3 - Product Specifications 42'' Models
Comfortflame.US.com900563-00NC7
Page 8
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall not be installed in a
room or space unless the required volume of indoor
combustion air is provided by the method described
in the National Fuel Gas Code, ANSI Z223.1/NFPA 54,
the International Fuel Gas Code, or applicable local
codes. Read the following instructions to insure proper
fresh air for this and other fuel-burning appliances in
your home.
Today’s homes are built more energy efficient than ever. New materials, increased insulation and new construction methods help reduce
heat loss in homes. Home owners weather strip and caulk around
windows and doors to keep the cold air out and the warm air in.
During heating months, home owners want their homes as airtight
as possible.
While it is good to make your home energy efficient, your home needs
to breathe. Fresh air must enter your home. All fuel-burning appliances
need fresh air for proper combustion and ventilation.
Exhaust fans, fireboxes, clothes dryers and fuel burning appliances
draw air from the house to operate. You must provide adequate fresh
air for these appliances. This will insure proper venting of vented
fuel-burning appliances.
PROVIDING ADEQUATE VENTILATION
The following are excerpts from National Fuel Gas Code, ANSI Z223.1/
NFPA 54, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three following ventilation
classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on page 8 through 10 will help you classify your
space and provide adequate ventilation.
Unusually Tight Construction
The air that leaks around doors and windows may provide enough
fresh air for combustion and ventilation. However, in buildings of
unusually tight construction, you must provide additional fresh air.
Unusually tight construction is defined as construction where:
a. walls and ceilings exposed to the outside atmosphere have a
continuous water vapor retarder with a rating of one perm (6 x
-11
10
kg per pa-sec-m2) or less with openings gasketed or sealed
and
b. weather stripping has been added on openable windows and
doors and
c. caulking or sealants are applied to areas such as joints around
window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations
for plumbing, electrical and gas lines and at other openings.
If your home meets all of the three criteria above, you must provide
additional fresh air. See Ventilation Air From Outdoors, page 9.
If your home does not meet all of the three criteria above, proceed
to Determining Fresh-Air Flow for Firebox Location.
Confined and Unconfined Space
The National Fuel Gas Code, ANSI Z223.1/NFPA 54 defines a confined
space as a space whose volume is less than 50 cubic feet per 1,000
Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space and an unconfined space as a space
whose volume is not less than 50 cubic feet per 1,000 Btu per hour
(4.8 m3 per kw) of the aggregate input rating of all appliances installed
in that space. Rooms communicating directly with the space in which
the appliances are installed*, through openings not furnished with
doors, are considered a part of the unconfined space.
* Adjoining rooms are communicating only if there are doorless
passageways or ventilation grills between them.
DETERMINING FRESH-AIR FLOW FOR FIREBOX LOCATION
Determining if You Have a Confined or Unconfined Space
Use this work sheet to determine if you have a confined or unconfined space.
Space: Includes the room in which you will install heater plus any
adjoining rooms with doorless passageways or ventilation grills
between the rooms.
1. Determine the volume of the space (length x width x height).
Length x Width x Height = __ cu. ft. (volume of space)
Example: Space size 22 ft. (length) x 18 ft. (width) x 8 ft. (ceiling
height) = 3168 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills
or openings, add the volume of these rooms to the total volume
of the space.
2. Multiply the space volume by 20 to determine the maximum Btu/
Hr the space can support.
_____ (volume of space) x 20 = (Maximum Btu/Hr the space can
support)
Example: 3168 cu. ft. (volume of space) x 20 = 63,360 (maximum
Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free heater ______Btu/Hr
Gas water heater* ______Btu/Hr
Gas furnace ______Btu/Hr
Vented gas heater ______Btu/Hr
Gas fireplace logs ______Btu/Hr
Other gas appliances* + ____Btu/Hr
Total = _____Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws
combustion air from the outdoors and vents to the outdoors.
Example:Gas water heater 40,000 Btu/Hr
Vent-free heater + 39,000 Btu/Hr
Total = 79,000 Btu/Hr
4. Compare the maximum Btu/Hr the space can support with the
actual amount of Btu/Hr used.
________ Btu/Hr (maximum the space can support)
________ Btu/Hr (actual amount of
Btu/Hr used)
Example: 63,360 Btu/Hr (maximum the space can support)
79,000 Btu/Hr (actual amount of Btu/Hr used)
Comfortflame.US.com900563-00NC8
Page 9
AIR FOR COMBUSTION AND VENTILATION Continued
The space in the above example is a confined space because the actual
Btu/Hr used is more than the maximum Btu/Hr the space can support.
You must provide additional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoining room. If the
extra space provides an unconfined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation
Air From Inside Building.
B. Vent room directly to the outdoors. See Ventilation Air From
Outdoors.
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room
unconfined.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space
can support, the space is an unconfined space. You will need no additional fresh air ventilation.
WARNING: If the area in which the heater may be
operated does not meet the required volume for indoor
combustion air, combustion and ventilation air shall
be provided by one of the methods described in the
National Fuel Gas Code, ANSI Z223.1/NFPA 54, the
International Fuel Gas Code, or applicable local codes.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining unconfined space. When
ventilating to an adjoining unconfined space, you must provide two
permanent openings: one within 12" of the ceiling and one within
1 and 2, Figure 4). You can also remove door into adjoining room
(see option 3, Figure 4). Follow the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Air for Combustion and Ventilation for required size
of ventilation grills or ducts.
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or ducts. You must
provide two permanent openings: one within 12" of the ceiling and
onewithin12"oftheoor.Connecttheseitemsdirectlytotheoutdoors or spaces open to the outdoors. These spaces include attics
and crawl spaces. Follow the National Fuel Gas Code, ANSI Z223.1/
NFPA 54, Air for Combustion and Ventilation for required size of
ventilation grills or ducts.
IMPORTANT: Do not provide openings for inlet or outlet air into attic
if attic has a thermostat-controlled power vent. Heated air entering
the attic will activate the power vent.
Outlet
Air
Outlet
Air
Inlet
Air
Inlet Air
Ventilated
Attic
To Attic
To
Crawl
Space
Ventilated
Crawl Space
Figure 5 - Ventilation Air from Outdoors
Ventilation
Grills
Into Adjoining
Room,
Option 1
Figure 4 - Ventilation Air from Inside Building
Or
Remove
Door into
Adjoining
Room,
Option
3
12"
Ventilation Grills
Into Adjoining Room,
Option 2
12"
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Page 10
INSTALLATION
WARNING: A qualified service person must install
firebox. Follow all local codes.
WARNING: Never install the firebox
• in a bedroom or bathroom*
• in a recreational vehicle
• where curtains, furniture, clothing or other ammable
objects are less than 42" from the front, top or sides
of the firebox
• in high trafc areas
• in windy or drafty areas
* Unless the installed log set is rated at 10,000 Btu/
Hr or less in a bedroom or 6,000 Btu/Hr or less in a
bathroom.
CAUTION: Log heaters installed in this firebox
create warm air currents. These currents move heat
to wall surfaces next to firebox. Installing firebox next
to vinyl or cloth wall coverings or operating firebox
where impurities (such as, but not limited to, tobacco
smoke, aromatic candles, cleaning fluids, oil or kerosene lamps, etc.) in the air exist, may discolor walls
or cause odors.
IMPORTANT: Vent-free gas log heaters add moisture to the air. Although this is beneficial, installing firebox in rooms without enough
ventilation air may cause mildew to form from too much moisture.
See Air for Combustion and Ventilation, page 8.
IMPORTANT: Make sure firebox is level. If firebox is not level, log set
will not work properly.
Note: Your firebox is designed to be used in zero clearance installations. Wall or framing material can be placed against any exterior
surface on the rear, sides, top or bottom of your firebox, except
where standoff spacers are integrally attached. If standoff spacers
are attached to your firebox, these spacers can be placed directly
against wall or framing materials. Use the dimensions shown for
rough opening to create the easiest installation.
Use dimensions shown for rough openings to create the easiest
installation (see Built-In Firebox Installation, page 11).
INSTALLATION CLEARANCES
WARNING: Maintain the minimum clearances. If you
can, provide greater clearances from floor, ceiling and
adjoining wall.
Carefully follow these instructions. This will ensure safe installation.
Minimum Wall and Ceiling Clearances (see Figure 6)
A. Clearances from the side of fireplace cabinet to any combustible
material and wall should follow diagram in Figure 6.
Example: The face of a mantel, bookshelf, etc. is made of combus-
tible material and protrudes 3 1/2" from the wall. This combustible
material must be 4" from the side of the fireplace cabinet (see
Figure 6).
B. Clearances from the top of firebox opening to ceiling should not
be less than 42".
C. When firebox is installed on carpeting or other combustible
These fireboxes can be installed as freestanding units against a wall
with the approved, optional cabinet mantels (see Accessories, page
18) or as a built-in unit. Clearances are the same for either installation method.
CAUTION: Do not install the firebox directly on
carpet or vinyl.
Example
*
*Minimum 16" from Side Wall
Figure 6 - Minimum Clearance for Combustible to wall
Mantel Clearances for Built-In Installation
If placing custom mantel above built-in firebox, you must meet the
minimum allowable clearance between mantel shelf and top of firebox
opening shown in Figure 7, page 11. These are the minimum allowable mantel clearances for a safe installation. Use larger clearances
wherever possible to minimize the heating of objects and materials
placed on the mantel.
Comfortflame.US.com900563-00NC10
Page 11
INSTALLATION Continued
Supplied
Firebox Hood
Must Be Used
at All Times
Wire-mesh
Screen
Firebox
Noncombustible
Material May
Project Off this
Surface above
the Firebox Hood
Mantel Shelf
Note: Any portion of the
mantel shelf must NOT
extend beyond this profile.
12" 16" 20"
1
1
/
2
"
6
3
/
4
"
12"
Note: All vertical
measurements are
from top of fireplace
hood opening to
bottom of mantel shelf.
These minimum
clearances replace any
other recommended
clearances supplied
with your ANSI Z21.11.2
approved gas logs.
Wall board or facing
material (above
firebox) may be of
combustible material,
including decorative
mantel ornaments or
other similar projections off of the facing
material.
Framing
Material
Depth
(Minimum)
Width
(Inside to Inside)
Height
FOR 32" MODELS
CAUTION: Do not allow the vent-free gas log heater
to touch or extend beyond the fireplace screen.
NOTICE: Surface temperatures of adjacent walls and
mantels become hot during operation. Walls and
mantels above the firebox may become hot to the
touch. If installed properly, these temperatures meet
the requirement of the national product standard. Follow all minimum clearances shown in this manual.
NOTICE: If your installation does not meet the minimum
clearances shown, you must do one of the following:
• raise the mantel to an acceptable height
• remove the mantel
BUILT-IN FIREBOX INSTALLATION
Built-in installation of this firebox involves installing firebox into a
Optional brass trim accessories are available (see Accessories, page
18). The brass trim will extend past sides of firebox approximately
1/2". This will cover the rough edges of the wall opening. If installing
a mantel above the firebox, you must follow the clearances shown
in Figure 7. Follow the instructions below to install the firebox in
this manner.
1. Frame in rough opening. The firebox framing should be constructed of 2 x 4 lumber or heavier. Use dimensions in Table 1
and rough opening layout in Figure 8a. Adjust framing so that
Figure 7 - Minimum Mantel Clearances for Built-In Installation
41 3/8"
*14 1/2"
71 1/4"
FOR 42" MODELS
0" CLEARANCE
Figure
8d
* These dimensions allow for min. Clearances to a 45° projected
side wall. However, clearances to projected mantel trims and facings
are allowed within a min. Of 16" to a perpendicular wall as shown in
figure 6, on page 10.
Comfortflame.US.com900563-00NC11
58"
41"
*17"
48 1/4"
*17"
82"
Figure 8 - Rough Opening Dimensions
Page 12
INSTALLATION Continued
IMPORTANT: If installing blower accessory, see Wiring Instructions,
page 13.
3. Carefully set firebox in front of rough opening with back of firebox
inside wall opening. IMPORTANT: If installing a perimeter trim kit,
see instructions included with trim accessory. You must install
shoulder screws from trim kit now.
4.
Carefully insert firebox into rough opening.
5. Attach firebox to wall studs using nails or wood screws through
holesinnailingange(seeFigure9).
6. If using an optional perimeter trim kit, install the trim after final
finishing and/or painting of wall. See instructions included with
trim accessory for attaching trim.
7. Install and properly test gas log heater. Follow installation instructions included with the vent-free gas log heater that is being
installed.
IMPORTANT: When finishing your firebox, combustible materials such
as wall board, gypsum board, sheet rock, drywall, plywood, etc. may
be butted up next to the sides and top of the firebox. Combustible
materials should never overlap the firebox front facing.
WARNING: Do not allow any combustible materials
to overlap the firebox front facing.
IMPORTANT: Noncombustible materials such as brick, tile, etc. may
overlap the front facing, but should never cover any necessary openings like louvered slots.
WARNING: Do not allow noncombustible materials
to cover any necessary openings like louvered slots.
WARNING: Use only noncombustible mortar or
adhesives when overlapping the front facing with
noncombustible facing material.
INSTALLING FIREBOX USING OPTIONAL ACCESSORY MANTELS
WARNING: A qualified service person must install
firebox. Follow all local codes.
This firebox may be installed using a cabinet mantel accessory against
a wall in your home. The firebox and cabinet mantel can be installed
NOTICE: A qualified service person must connect heater
to gas supply. Follow all local codes.
Nails or Wood
Screws
Nailing
Flanges
Figure 9 - Attaching Firebox to Wall Studs (Model May Vary From
Illustration)
WARNING: DO NOT FILL THE SPACES AROUND THE
FIREBOX WITH INSULATION OR OTHER MATERIALS.
WARNING: DO NOT ALTER, CUT, OR MODIFY
FIREPLACE SPACERS.
IMPORTANT: See Connecting to Gas Supply in your log set owner’s
manual for details on gas hookup.
You may run the gas line from either side of the firebox (see Figure
10, page 13). Decide which side you want to run the gas line from.
Note: This is one option for installing shutoff valve. Check local codes
for equipment shutoff valve location requirements.
Locate the recessed knockout in one of the firebrick sidewall liners
(see Figures 10 and 11, page 13). Firmly tap the center of the knockout
with a chisel until it is released. Carefully chisel the rough edges of
the hole you have made to smooth edges. This hole will line up with
the hole in the outer casing.
CAUTION: Do not use excessive force to remove the
knockout. Too much force may damage the firebrick
concrete insert.
WARNING: FRAMING MAY BE PLACED OR REST
AGAINST FIREPLACE SPACER, HOWEVER, FRAMING
MUST NEVER BE NOTCHED.
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Page 13
INSTALLATION Continued
Equipment Shutoff
Valves (Install One)
INSTALLING OPTIONAL BLOWER ACCESSORY
NOTICE: The firebox identification label (including
model number, serial number, clearances, etc.) is
located in the right side screen pocket area on the
front of the firebox. See Figure 24, page 20.
NOTICE: If a log set is installed in the firebox, disconnect log set from gas supply and remove from firebox.
Contact a qualified service person to do this.
Knockout
Locations
(Knock Out
One Hole)
Gas Line Hole
Figure 10 - Installing Gas Line and Equipment Shutoff Valve
(Model May Vary From Illustration)
Firebrick Side Wall
Side
View
Remove
this Area
Note: Appearance of firebox may vary depending on model.
There is a blower accessory option for use in this fireplace. Blower
accessory model is BK for all louvered models only. Model BK is a
rotary squirrel cage type blower with magnetic attachment and variable speed control.
Wiring Instructions
1. Remove electrical cover plate with bushing from fireplace by
removing 2 sheet metal screws as shown in Figure 12.
2. Slide power source wiring through electrical bushing opening
and electrical cover plate and make all necessary connections.
3. Slide all wiring connections in electrical housing as shown in
Figure 12.
4. Secure electrical cover plate with screws previously removed.
Note: Electrical housing and cover plate have sharp edges. Wear
protective gloves.
Sheet Metal
Screws
KnockoutChisel
Figure 11 - Location of Knockout for Gas Line
Electrical
Cover
Plate
Electrical
Housing
Wire Nut (3x)
(Not Supplied)
Electrical
Bushing
Outer Wrapper
of Fireplace
Power Source Wiring
(Not Supplied)
To Power
Source
Electrical Cover
Plate and
Receptacle
(Supplied)
Prewired Receptacle
and Ground
Figure 12 - Electrical Bushing
Comfortflame.US.com900563-00NC13
Electrical Bushing
Fireplace Chassis
Ground
Page 14
INSTALLATION Continued
Accessing Blower Compartment
Decide which way you intend to gain access into the bottom rear of
the firebox to install the blower accessory (Louvered models only).
Radiant Models: Accessibility to the bottom, can only be gained
through the access panel underneath the bottom front refractory brick
liner (see Figure 13). Lift the bottom front refractory brick liner up and
(see Figure 13). The sides and back refractory brick liner pieces do
not have to be removed. Lift access panel out by using finger holes.
Blower accessory BK can now be installed
Louvered Models: Accessibility to the bottom, can be gained through
the access panel underneath the bottom front refractory brick liner
and thru the bottom louver opening. Lift the bottom front refractory
shaped access cover (see Figure 13). The sides and back refractory
brick liner pieces do not have to be removed. Lift access panel cover
out by using finger holes. Blower accessory BK can now be installed.
If accessing thru the louver opening, remove bottom louver panel by
simultaneously pulling both top end spring latches towards center of
appliance until they are disengaged from locating holes (see Figure
13a). Repeat for bottom spring latches and pull louver outward. To
install or replace items removed, simply reverse procedures above.
Front
Refractory
Panel
Control
Access
Control
Access
Cover
Option for
Radiant
models
only
WARNING: If there is a duplex electrical outlet
installed in the right side of the bottom of the fireplace
base area (see Figure 14), be sure that the electrical
power to the outlet is turned off before proceeding
with blower installation. Failure to do this may result
in serious injury.
Duplex
Electrical
Outlet
Figure 14 - Accessing Duplex Electrical Outlet Installed in
Bottom Right Side of Firebox
Model BK Installation
1. Be certain that all wire terminals are securely attached to terminals
on blower motor and that the screw retaining the green ground
wire is tight (see Figure 15).
2. Place blower against lower rear wall of firebox outer wrapper with
exhaust port directed upward. Depending on your model, you may
have to carefully route the blower assembly past controls and
brackets and position blower inside back opening. The blower will
be held in position against the back wall by magnets incorporated
onto blower housing (see Figures 15 and 16).
Bottom
Louver
Figure 13 - Accessing Blower Compartment (Controls Not Shown for
Clarity)
Louver
Panel
Spring
Latch
Figure 13a - Removing Louver Panel
Comfortflame.US.com900563-00NC14
Spade
Terminals
Green
Ground
Wire
Blower
Installed After
Lower Panel
Removed
Figure 16 - Blower Model BK (Side View)
Magnetic Strips
Exhaust
Port
Screw
Figure 15 - Blower Model BK
Side View
Firebox Bottom
Blower
Location
Air Flow
Direction
Magnets
Page 15
INSTALLATION Continued
Variable
3. Remove metal lock nut from plastic control shaft by turning lock
nut with pliers counter clockwise. Mount speed control box by
placing plastic control shaft through hole on lower portion of the
left or right side of secondary face by sliding control box down
through large hole in firebox bottom and up behind firebox side
(see Figure 17, page 15). Secure speed control to side face with
previously removed lock nut by pushing and turning lock nut
clockwise with pliers until it is tight against side face of fireplace
(see Figure 17, page 15).
CAUTION: Use gloves as sheet metal parts may
be sharp.
4. Place control knob, provided, onto control shaft (see Figure 17,
page 15).
5. Check to make sure power cord is completely clear of blower wheel
and there are no foreign objects in blower wheel. Also, double
check all wire leads and make sure wire routing is not pinched or
in a precarious position. Correct accordingly.
Secondary
Face
Control
Access
Lock Nut
Off
110/115
V.A.C.
Black
Green
White
Wiring Diagram
Decal 12" in
Front of Blower
Fan Switch
1
2
On
Black
Blower
Motor
Control
Knob
Control
Shaft
Figure 17 -Attaching Speed Control (Radiant Face Model Shown)
CAUTION: Never touch blower wheel while in
operation.
6. Turn on power to duplex outlet if previously turned off per warning in
column 1, page 14.
7. Plug in blower power cord to duplex outlet (see Figure 14, page 14).
8. Turn blower on and check for operation. Turn blower off by turning
knob fully counterclockwise before continuing.
9. Peel off backing paper and stick supplied wiring diagram decal on
firebox bottom approximately 12" in front of blower (see Figure 18).
10. Replace all panels and/or brick bottom panel if previously removed.
Figure 18 - Location of Wiring Diagram Decal (Model May Vary
From Illustration)
OPTIONAL OUTSIDE AIR KIT (MODEL AK4/AK4F)
Installation of outside air kit should be performed during rough framing of fireplace due to the nature of it's location. Outside combustion
air is accessed through a vented crawl space (AK4F) or through a
sidewall (AK4). See Figure 19.
CAUTION: Combustion air inlet ducts shall not
terminate in attic space.
Secure to Collars with Metal Tape, Screws or Straps
(Min. of 1/4" x 20" in size)
Air Inlet
Location
Must Allow
For Bushes
or Snow
Air Inlet
Eyebrow
Vented Crawl Space (Check Local
Codes Before Installing in a Vented
Crawl Space)
Figure 19 - Outside Air Kit
Vent Hood Required for
Wall Installation
Comfortflame.US.com900563-00NC15
Page 16
INSTALLATION Continued
INSTALLING FIREPLACE HOOD AND SCREEN
1. Attach hood to firebox using screws provided (see Figure 20).
2. Insert each rod through all rings located at top of screen.
3. Insert first rod into rear hole in left side of firebox. Fasten rod to
rear hole near center of firebox using #10 x 3/8" Phillips screw
provided (see Figure 21).
4. Insert other rod into front hole on right side of firebox and fasten
using remaining Phillips screw.
Hood
Screws
Figure 20 - Screw and Hood Placement (Model May Vary From
Illustration)
Screen Pocket
Figure 22 - Screen Pocket Location
LOCATING ACCESS COVER PLATE
Sheet metal cover plates located underneath front hearth refractory
(if included) may have shifted or moved out of place while fireplace
was in transit. These cover plates must be kept in the proper location
prior to using the fireplace (See Figure 23).
Top View of Rod Layout
Rear Hole
Front
Hole
Identication
Label Location
Rod
Ring
Screen
Screw
Figure 21 - Installing Fireplace Screen (Model May Vary From
You may feel your gas pressure is too low. If so, contact your local
gas supplier.
TECHNICAL SERVICE
You may have further questions about installation, operation, or
troubleshooting. Please contact your IHP dealer for any questions
or concerns. When contacting your dealer please have your model
and serial numbers of your fireplace ready. You can also visit our web
siteatComfortame.US.com.
See Pages 20 to 23 for a complete replacement parts list. Use only
parts supplied from the manufacturer.
Normally, all parts should be ordered through your IHP distributor
or dealer. Parts will be shipped at prevailing prices at time of order.
When ordering repair parts, always give the following information:
1. The model number of the fireplace.
2. The serial number of the fireplace.
3. The part number.
4. The description of the part.
5. The quantity required.
6. The installation date of the fireplace.
If you encounter any problems or have any questions concerning the
installation or application of this fireplace, please contact your dealer.
IHP
1508 Elm Hill Pike, Suite 108
Nashville, TN 37210
Visit us at Comfortflame.US.com
This list contains replaceable parts used in your firebox. When ordering parts, follow the instructions listed under Replacement Parts on
page 18 of this manual.
WARNING: Contact an IHP dealer to obtain any of these parts. Never use substitute materials not approved
by IHP. Use of non-approved parts can result in poor performance and safety hazards.
This list contains replaceable parts used in your firebox. When ordering parts, follow the instructions listed under Replacement Parts on
page 18 of this manual.
WARNING: Contact an IHP dealer to obtain any of these parts. Never use substitute materials not approved
by IHP. Use of non-approved parts can result in poor performance and safety hazards.
Cumberland32
KEY
NO.CATALOG NO. DESCRIPTION
1J4209Left Refractory White Stack•1
J6368Left Refractory White Stack•1
J6380Left Refractory White Stack•1
2J4205Right Refractory White Stack•1
J6369Right Refractory White Stack•1
J6382Right Refractory White Stack•1
3J4201Rear Refractory White Stack•1
J6371Rear Refractory White Stack•1
J6384Rear Refractory White Stack•1
4J4195Bottom Rear Refractory White Stack•1
J6372Bottom Rear Refractory White Stack•1
J6386Bottom Rear Refractory White Stack•1
5J4198Bottom Front Refractory White Stack•1
J6374Bottom Front Refractory White Stack•1
J6387Bottom Front Refractory White Stack•1
Innovative Hearth Products ("IHP") 20 Year Limited Warranty warrants your Comfort Flame™ Brand gas fi replace or insert ("Product") to be free from defects in materials and workmanship at the time of manufacture. The Product body and fi rebox carry the 20 Year Limited Warranty. Ceramic glass carries the 20 Year Limited Warranty
against thermal breakage only. After installation, if covered components manufactured by IHP are found to be defective in materials or workmanship during the 20 Year
Limited Warranty period and while the Product remains at the site of the original installation, IHP will, at its option, repair or replace the covered components. If repair or
replacement is not commercially practical, IHP will, at its option, refund the purchase price or wholesale price of the IHP product, whichever is applicable. IHP will also
pay IHP prevailing labor rates, as determined in its sole discretion, incurred in repairing or replacing such components for up to fi ve years. THERE ARE EXCLUSIONS AND
LIMITATIONS to this 20 Year Limited Warranty as described herein.
COVERAGE COMMENCEMENT DATE
Warranty coverage begins on the date of purchase. In the case of new home construction, warranty coverage begins on the date of fi rst occupancy of the dwelling or six
months after the sale of the Product by an independent IHP dealer/distributor, whichever occurs earlier. The warranty shall commence no later than 24 months following
the date of product shipment from IHP, regardless of the installation or occupancy date.
EXCLUSIONS AND LIMITATIONS
This 20 Year Limited Warranty applies only if the Product is installed in the United States or Canada and only if operated and maintained in accordance with the printed
instructions accompanying the Product and in compliance with all applicable installation and building codes and good trade practices.
This warranty is non-transferable and extends to the original owner only. The Product must be purchased through a listed supplier of IHP and proof of purchase must be
provided. The Product body and fi rebox carry the 20 Year Limited Warranty from the date of installation. Vent components, trim components and paint are excluded from
this 20 Year Limited Warranty. The following do not carry the 20 Year Limited Warranty but are warranted as follows:
Burner – Repair or replacement for one year from the date of installation
Gas components – Repair or replacement for one year from the date of installation
Gaskets – Repair or replacement for one year from the date of installation
Gold & nickel plating – Replacement for two years from date of installation. Excludes tarnishing
Logs – Replacement for one year from the date of installation against thermal breakage only
Optional blowers & remote controls – Repair or replacement for one year from the date of installation
Optional glass doors – Repair or replacement for 90 days from the date of installation
Tempered glass – Replacement for one year from the date of installation
Labor coverage – Prevailing IHP labor rates apply for the warranty period of the component
Parts not otherwise listed carry a 90 day warranty from the date of installation.
Whenever practicable, IHP will provide replacement parts, if available, for a period of 10 years from the last date of manufacture of the Product.
IHP will not be responsible for: (a) damages caused by normal wear and tear, accident, riot, fi re, fl ood or acts of God; (b) damages caused by abuse, negligence, misuse, or
unauthorized alteration or repair of the Product affecting its stability or performance (The Product must be subjected to normal use. The Product is designed to burn either
natural or propane gas only. Burning conventional fuels such as wood, coal or any other solid fuel will cause damage to the Product, will produce excessive temperatures
and could result in a fi re hazard.); (c) damages caused by failing to provide proper maintenance and service in accordance with the instructions provided with the Product;
(d) damages, repairs or ineffi ciency resulting from faulty installation or application of the Product.
IHP is not responsible for inadequate fi replace system draft caused by air conditioning and heating systems, mechanical ventilation systems, or general construction
conditions which may generate negative pressure in the room in which the appliance is installed. Additionally IHP assumes no responsibility for drafting conditions caused
by venting confi gurations, adjoining trees or buildings, adverse wind conditions or unusual environmental factors and conditions that affect the operation of the unit.
This 20 Year Limited Warranty covers only parts and labor as provided herein. In no case shall IHP be responsible for materials, components or construction, which are not
manufactured or supplied by IHP or for the labor necessary to install, repair or remove such materials, components or construction. Additional utility bills incurred due to
any malfunction or defect in equipment are not covered by this warranty. All replacement or repair components will be shipped F.O.B. from the nearest stocking IHP factory.
LIMITATION ON LIABILITY
It is expressly agreed and understood that IHP’s sole obligation and the purchaser’s exclusive remedy under this warranty, under any other warranty, expressed or implied,
or in contract, tort or otherwise, shall be limited to replacement, repair, or refund, as specifi ed herein.
In no event shall IHP be liable for any incidental or consequential damages caused by defects in the Product, whether such damage occurs or is discovered before or
after repair or replacement, and whether such damage is caused by IHP’s negligence. IHP has not made and does not make any representation or warranty of fi tness for a
particular use or purpose, and there is no implied condition of fi tness for a particular use or purpose.
IHP makes no expressed warranties except as stated in this 20 Year Limited Warranty. The duration of any implied warranty is limited to the duration of this expressed warranty.
No one is authorized to change this 20 Year Limited Warranty or to create for IHP any other obligation or liability in connection with the Product. Some states and provinces
do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you. The provisions of this 20 Year
Limited Warranty are in addition to and not a modifi cation of or subtraction from any statutory warranties and other rights and remedies provided by law.
INVESTIGATION OF CLAIMS AGAINST WARRANTY
IHP reserves the right to investigate any and all claims against this 20 Year Limited Warranty and to decide, in its sole discretion, upon the method of settlement.
To receive the benefi ts and advantages described in this 20 Year Limited Warranty, the appliance must be installed and repaired by a licensed contractor approved by IHP.
Contact IHP at the address provided herein to obtain a listing of approved dealers/distributors. IHP shall in no event be responsible for any warranty work done by a
contractor that is not approved without fi rst obtaining IHP's prior written consent.
HOW TO REGISTER A CLAIM AGAINST WARRANTY
In order for any claim under this warranty to be valid, you must contact the IHP dealer/distributor from which you purchased the product. If you cannot locate the dealer/
distributor, then you must notify IHP in writing. IHP must be notifi ed of the claimed defect in writing within 90 days of the date of failure. Notices should be directed to the
IHP Warranty Department at 1508 Elm Hill Pike, Suite 108; Nashville, TN 37210 or visit our website at WWW.COMFORTFLAME.US.COM.
1508 Elm Hill Pike, Suite 108 • Nashville, TN 37210
Page 28
WARRANTY
KEEP THIS WARRANTY
Model Number
Serial Number
Date Installed
Dealer's Name
Dealer's Phone Number
Keep receipt for warranty verification
Innovative Hearth Products reserves the right to make changes at any time, without notice, in
design, materials, specifications, prices and also to discontinue colors, styles and products. Consult
your local distributor for fireplace code information.