Desa CGCF10NR Quick start guide

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WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result causing
property damage, personal injury, or loss of life.
— 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.
• 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 fire
department.
— Installation and service must be performed by a quali-
fied installer, service agency, or the gas supplier.
UNVENTED (VENT-FREE) GAS
COMPACT CLASSIC HEARTH® FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
Patent Pending
Shown with Optional Cabinet
Mantel/Hearth Base Accessory
THERMOSTAT MODELS:
VMH10TNC, VMH10TPC, EFS10TPA AND EFS10TNA
REMOTE-READY MODELS:
VMH10RNC, VMH10RPC, EFS10RPA, EFS10RNA, CGCF10NR
AND CGCF10PR

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2
WARNING: Improper installation, adjustment, altera-
tion, service, or maintenance can cause injury or prop-
erty damage. Refer to this manual for correct installation
and operational procedures. For assistance or addi-
tional information consult a qualified installer, service
agency, or the gas supplier.
WARNING: This is an unvented gas-fired heater. It uses
air (oxygen) from the room in which it is installed.
Provisions for adequate combustion and ventilation air
must be provided. Refer to Air for Combustion and
Ventilation section on page 7 of this manual.
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.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
TABLE OF CONTENTS
Safety Information ............................................... 3
Local Codes ........................................................ 4
Product Identification .......................................... 5
Unpacking ........................................................... 5
Product Features ................................................ 5
Optional Remote Control Accessories ................ 5
Assembly ............................................................ 6
Air for Combustion and Ventilation ...................... 7
Installation ........................................................... 9
Operating Fireplace .......................................... 23
Inspecting Burners ............................................ 29
Cleaning and Maintenance ............................... 30
Troubleshooting ................................................. 31
Specifications .................................................... 35
Wiring Diagram ................................................. 35
Service Hints ..................................................... 35
Technical Service .............................................. 35
Replacement Parts ........................................... 35
Illustrated Parts Breakdown and Parts List ....... 36
Accessories ....................................................... 40
Warranty Information .......................... Back Cover

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112462-01C 3
WARNING: Do not allow fans
to blow directly into the fireplace.
Avoid any drafts that alter burner
flame patterns. Ceiling fans can
create drafts that alter burner
flame patterns. Altered burner
patterns can cause sooting.
Due to high temperatures, the
appliance should be located out
of traffic and away from furni-
ture and draperies.
Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.
Fireplace front and screen be-
come very hot when running
heater. Keep children and adults
away from hot surfaces to avoid
burns or clothing ignition. Fire-
place will remain hot for a time
after shutdown. Allow surfaces
to cool before touching.
Carefully supervise young chil-
dren when they are in the room
with fireplace. When using the
hand-held remote accessory
(Remote-Ready Models Only),
keep selector switch in the OFF
position to prevent children from
turning on burners with remote.
You must operate this fireplace
with the fireplace screen in place.
Make sure fireplace screen is
closed before running fireplace.
Keep the appliance area clear
and free from combustible ma-
terials, gasoline, and other flam-
mable vapors and liquids.
SAFETY INFORMATION
WARNING: This product con-
tainsand/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, oper-
ate, or service this fireplace. Im-
proper use of this fireplace can
cause serious injury or death
from burns, fire, explosion, elec-
trical shock, and carbon mon-
oxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of car-
bon monoxide poisoning resemble the flu, with head-
aches, dizziness, or nausea. If you have these signs,
the fireplace may not be working properly. Get fresh
air at once! Have fireplace serviced. Some people
are more affected by carbon monoxide than others.
These include pregnant women, people with heart
or lung disease or anemia, those under the influence
of alcohol, and those at high altitudes.
Natural and Propane/LP Gas: Natural and propane/
LP gases are odorless. An odor-making agent is
added to the gas. The odor helps you detect a gas
leak. However, the odor added to the gas can fade.
Gas may be present even though no odor exists.
Make certain you read and understand all warn-
ings. Keep this manual for reference. It is your
guide to safe and proper operation of this fireplace.
WARNING: Any change to
this fireplace or its controls can
be dangerous.
WARNING: Do not use a
blower insert, heat exchanger
insert, or other accessory not ap-
proved for use with this fireplace.

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4
SAFETY INFORMATION
Continued
1. This appliance is only for use with the type of
gas indicated on the rating plate. This appli-
ance is not convertible for use with other gases.
2. Do not place propane/LP supply tank(s) in-
side any structure. Locate propane/LP supply
tank(s) outdoors.
3. If you smell gas
• shut off gas supply
• 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 fire department
4. This fireplace shall not be installed in a bathroom.
5. Do not use this fireplace as a wood-burning
fireplace. Use only the logs provided with the
fireplace.
6. Do not add extra logs or ornaments such as
pine cones, vermiculite, or rock wool. Using
these added items can cause sooting. Do not
add lava rock around base. Rock and debris
could fall into the control area of fireplace.
7. This fireplace is designed to be smokeless. If
logs ever appear to smoke, turn off fireplace
and call a qualified service person. Note: Dur-
ing initial operation, slight smoking could
occur due to log curing and fireplace burning
manufacturing residues.
8. To prevent the creation of soot, follow the instruc-
tions in Cleaning and Maintenance, page 30.
9. Before using furniture polish, wax, carpet
cleaner, or similar products, turn fireplace off.
If heated, the vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.
10. This fireplace needs fresh air ventilation to run
properly. This fireplace has an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS shuts down the fireplace if not enough
fresh air is available. See Air for Combustion
and Ventilation, page 7. If fireplace keeps shut-
ting off, see Troubleshooting, page 31.
11. Keep all air openings in front and at bottom
of heater clear and free of debris. This will
insure enough air for proper combustion.
12. Do not run fireplace
• where flammable liquids or vapors are used
or stored.
• under dusty conditions.
13. Do not use this fireplace to cook food or burn
paper or other objects.
14. Never place any objects in the fireplace or
on logs.
15. Do not use fireplace if any part has been under
water. Immediately call a qualified service tech-
nician to inspect the room fireplace and to re-
place any part of the control system and any
gas control which has been under water.
16. Turn off and unplug fireplace and let cool be-
fore servicing. Only a qualified service per-
son should service and repair fireplace.
17. Operating fireplace above elevations of 4,500
feet could cause pilot outage.
18. Do not operate fireplace if any log is broken.
Do not operate fireplace if a log is chipped
(dime-sized or larger).
19. To prevent performance problems, do not use
propane/LP fuel tank of less than 100 lbs.
capacity.
20. Provide adequate clearances around air
openings.
LOCAL CODES
Install and use fireplace with care. Follow all lo-
cal codes. In the absence of local codes, use the
latest edition of The National Fuel Gas Code ANSI
Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269

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112462-01C 5
PRODUCT
IDENTIFICATION
Electronic
Ignitor Button
Screen
Fireplace
Cabinet
Logs
Control Knob
Figure 1 - Vent-Free Compact Classic
Hearth
®
Fireplace
Screen
Fireplace Cabinet
Logs
Electronic
Ignitor Button
Remote Control
(Optional)
Remote
Selector
Switch
(Optional)
Control Knob
Flexible Gas
Line
Flexible
Gas
Line
UNPACKING
1. Remove fireplace and hood from carton. Log
is wrapped and inside fireplace. Do not re-
move at this time.
2. Remove all protective packaging applied to
fireplace for shipment.
3. Make sure your fireplace includes one hard-
ware packet.
4. Check fireplace for any shipping damage. If
fireplace is damaged, promptly inform dealer
where you bought fireplace.
PRODUCT FEATURES
SAFETY PILOT
This fireplace has a pilot with an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS/pilot is a required feature for vent-free room
fireplaces. The ODS/pilot shuts off the fireplace
if there is not enough fresh air.
ELECTRONIC IGNITOR
This heater has an electronic ignitor to light heater
fuel supply.
THERMOSTATIC HEAT CONTROL
FOR THERMOSTAT-CONTROLLED
MODELS
Thermostat-Controlled models have a thermostat
sensing bulb and a control valve. The thermostat
will automatically modulate the heat output to
maintain a consistent room temperature. This re-
sults in greater fireplace comfort. This can also
result in lower gas bills.
OPTIONAL REMOTE
CONTROL ACCESSORIES
(For Remote-Ready Models Only)
There are four optional remote controls that can
be purchased separately for Remote-Ready Mod-
els only:
• wall switch
• hand-held ON/OFF remote
• wall thermostat
• hand-held thermostat remote
See Accessories, page 40.

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6
ASSEMBLY
WARNING: Always have
screen in place before operat-
ing fireplace. This prevents ex-
cessive temperatures on fire-
place surfaces.
WARNING: Failure to posi-
tion the parts in accordance with
these diagrams or failure to use
only parts specifically approved
with this fireplace may result in
property damage or personal
injury.
ASSEMBLING FIREPLACE
Tools Required:
• Phillips screwdriver
• 5/16" hex wrench
• slotted screwdriver
• scissors
1. Remove two screws that hold fireplace screen
in place for shipping. These screws are located
near top of screen. Discard screws. Lift fire-
place screen up and pull out to remove (see
Figure 2). Set screen aside until installation
has been completed.
2. Cut two plastic straps to remove the log from
the firebox cavity.
3. An optional blower is available. See Acces-
sories, page 40. Install optional blower now.
Follow installation instructions provided with
blower. See Installing Optional Blower Ac-
cessory GA3450T on page 14.
Screen
Shoulder
Screw
Figure 3 - Assembling Hood
Sheet Metal
Screws
Louver
Hood
Hood Tabs
Hood Tab
Baffle
Firebox Top
Figure 2 - Removing Screen
4. Locate four black phillips sheet metal screws
from the hardware packet.
5. Rotate hood as shown in Figure 3. Make sure
hood tabs point toward fireplace.
6. Insert hood tabs between baffle and louvers
(see Figure 3).
7. Gently rotate hood to upright position. Make
sure hood tabs are behind louvers and hood is
resting on firebox top (see Figure 3).
8. Align screw holes on hood with screw holes
on firebox top.
9. Insert screws as shown in Figure 3. Tighten
screws firmly.

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112462-01C 7
AIR FOR COMBUSTION
VENTILATION
WARNING:Thisfireplaceshall
notbeinstalledinaconfinedspace
or unusually tight construction
unless provisions are provided
foradequatecombustion andven-
tilation air. Read the following in-
structions 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 effi-
cient, 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, fireplaces, 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, Section 5.3, Air
for Combustion and Ventilation.
All spaces in homes fall into one of the three fol-
lowing ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 7 through 9 will help you
classify your space and provide adequate ventilation.
The air that leaks around doors and windows may
provide enough fresh air for combustion and ven-
tilation. 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 out-
side atmosphere have a continuous
water vapor retarder with a rating of
one perm (6 x 10-11 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 ar-
eas such as joints around window and
door frames, between sole plates and
floors, between wall-ceiling joints, be-
tween wall panels, at penetrations for
plumbing, electrical, and gas lines, and
at other openings.
If your home meets all of these three
criteria, you must provide additional
fresh air. See Ventilation Air From Out-
doors , page 8 .
If your home does not meet all of the
three criteria above, proceed to Deter-
mining Fresh-Air Flow For Fireplace Lo-
cation, page 8.
Confined and Unconfined Space
The National Fuel Gas Code, ANSI Z223.1/NFPA
54 defines a confined space as a space whose vol-
ume is less than 50 cubic feet per 1,000 Btu per
hour (4.8 m3per kw) of the aggregate input rating
of all appliances installed in that space and an un-
confined space as a space whose volume is not
less than 50 cubic feet per 1,000 Btu per hour (4.8
m3per kw) of the aggregate input rating of all ap-
pliances installed in that space. Rooms communi-
cating directly with the space in which the appli-
ances are installed*, through openings not fur-
nished with doors, are considered a part of the
unconfined space.
*Adjoining rooms are communicating only if there
are doorless passageways or ventilation grills be-
tween them.

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8
DETERMINING FRESH-AIR FLOW
FOR FIREPLACE 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
fireplace plus any adjoining rooms with doorless pas-
sageways 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 16 ft. (length) x 14 ft.
(width) x 8 ft. (ceiling height) = 1792 cu. ft. (vol-
ume of space)
If additional ventilation to adjoining room is sup-
plied 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 = (Maxi-
mum Btu/Hr the space can support)
Example: 1792 cu. ft. (volume of space) x 20 =
35,840 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in
the space.
Vent-free fireplace _________ 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. Di-
rect-vent draws combustion air from the outdoors
and vents to the outdoors.
Example:
Gas water heater _________ Btu/Hr
Vent-free fireplace + _________ Btu/Hr
Total = _________ Btu/Hr
4. Compare the maximum Btu/Hr the space can sup-
port with the actual amount of Btu/Hr used.
________ Btu/Hr (maximum the space can support)
________ Btu/Hr (actual amount of Btu/Hr used)
Example: 35,840 Btu/Hr (maximum the space
can support)
40,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the 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 ad-
ditional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoin-
ing room. If the extra space provides an uncon-
fined 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 Ventila-
tion Air From Outdoors.
C. Install a lower Btu/Hr fireplace, 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 oper-
ated is smaller than that defined
as an unconfined space or if the
building is of unusually tight
construction, provide adequate
combustion and ventilation air
by one of the methods described
in the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 Section
5.3 or applicable local codes .
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining uncon-
fined space. When ventilating to an adjoining un-
confined space, you must provide two permanent
openings: one within 12" of the ceiling and one within
12" of the floor on the wall connecting the two spaces
(see options 1 and 2, Figure 4, page 9). You can also
remove door into adjoining room (see option 3, Fig-
ure 4, page 9). Follow the National Fuel Gas Code,
ANSI Z223.1/NFPA 54, Section 5.3, Air for Com-
bustion and Ventilation for required size of ventila-
tion grills or ducts.
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills
or ducts. You must provide two permanent open-
ings: one within 12" of the ceiling and one within
12" of the floor. Connect these items directly to
the outdoors or spaces open to the outdoors. These
spaces include attics and crawl spaces. Follow the
National Fuel Gas Code, ANSI Z223.1/NFPA 54,
Section 5.3, Air for Combustion and Ventilation
for required size of ventilation grills or ducts.
AIR FOR COMBUSTION
AND VENTILATION
Continued
30,000
10,000
40,000

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112462-01C 9
IMPORTANT: Do not provide openings for inlet
or outlet air into attic if attic has a thermostat-con-
trolled power vent. Heated air entering the attic
will activate the power vent.
AIR FOR COMBUSTION
AND VENTILATION
Continued
Figure 4 - Ventilation Air from Inside
Building
Or
Remove
Door into
Adjoining
Room,
Option 3
Ventilation Grills
Into Adjoining Room,
Option 2
12"
12"
Ventilation
Grills
into Adjoining
Room,
Option 1
Figure 5 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
INSTALLATION
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your pri-
mary heat source. If you have a
central heating system, you
may run system’s circulating
blower while using heater. This
will help circulate the heat
throughout the house. In the
event of a power outage, you
can use this heater as your pri-
mary heat source.
WARNING: A qualified ser-
vice person must install fire-
place. Follow all local codes.
WARNING: Never install the
fireplace
• in a bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objects are less than 36
inches from the front, top, or
sides of the fireplace
• as a fireplace insert
• in high traffic areas
• in windy or drafty areas
CAUTION: This fireplace cre-
ates warm air currents. These
currents move heat to wall sur-
faces next to fireplace. Install-
ingfireplacenexttovinylorcloth
wall coverings or operating fire-
place where impurities (such as,
but not limited to, tobacco
smoke, aromatic candles, clean-
ing fluids, oil or kerosene lamps,
etc.) in the air exist, may dis-
color walls or cause odors.

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10
IMPORTANT: Vent-free fireplaces add moisture
to the air. Although this is beneficial, installing fire-
place in rooms without enough ventilation air may
cause mildew to form from too much moisture. See
Air for Combustion and Ventilation, page 7.
Note: Your fireplace is designed to be used in zero
clearance installations. Wall or framing material can
be placed directly against any exterior surface on the
rear, sides, or top of your fireplace, except where stand-
off spacers are integrally attached. If standoff spacers
are attached to your fireplace, these spacers can be
placed directly against wall or framing materials.
Note: When installing fireplace directly on car-
peting, tile or other combustible material, other
than wood flooring, the fireplace shall be installed
on a metal or wood panel extending the full width
and depth of the fireplace.
Use the dimensions shown for rough openings to
create the easiest installation (see Built-In Fire-
place Installation, page 11).
CHECK GAS TYPE
Use the correct gas type (natural or propane/LP)
for your unit. If your gas supply is not correct, do
not install fireplace. Call dealer where you bought
fireplace for proper type fireplace.
WARNING: This appliance
is equipped for (natural or pro-
pane/LP) gas. Field conversion
is not permitted.
INSTALLATION ITEMS
Before installing fireplace, make sure you have
the items listed below.
• external regulator (supplied by installer, for
propane/LP units only)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection*
• ground joint union
• sediment trap
• tee joint
• pipe wrench
* A CSA design-certified equipment shutoff valve
with 1/8" NPT tap is an acceptable alternative to
test gauge connection. Purchase the optional CSA
design-certified equipment shutoff valve from your
dealer. See Accessories, page 40.
INSTALLATION
Continued
FIREPLACE CLEARANCES
WARNING: Maintain the mini-
mum clearances shown in Fig-
ure 6. If you can, provide greater
clearances from floor, ceiling,
and joining wall.
NOTICE: If you install the fire-
place in a bedroom (Thermo-
stat-Controlled Models only),
some building codes require that
the fireplace/mantel system be
secured to (or within) a wall.
You can position fireplace in an
optional cabinet or corner man-
tel. You can also recess fire-
place into the wall.
If your fireplace is to be used with an optional
mantel, the installation instructions included with
your mantel shows an CSA approved method of
attaching the fireplace/mantel system to a wall.
IMPORTANT: Only use optional cabinet or cor-
ner mantels specified in this manual. Purchase the
optional mantel from your dealer (see Accesso-
ries, page 40).
If your fireplace is to be recessed into the wall,
see Built-In Fireplace Installation on page 11 to
secure your fireplace into the wall.
CAUTION: If you install the
fireplace in a home garage
• fireplace pilot and burner must
be at least 18 inches above
floor.
• locate fireplace where moving
vehicle will not hit it.
For convenience and efficiency, install fireplace
• where there is easy access for operation, inspec-
tion, and service
• in coldest part of room
An optional blower kit is available from your
dealer. See Accessories, page 40. If planning to
use blower, follow instructions provided with
blower for power source.

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112462-01C 11
Minimum Clearances For Side Combustible
Material, Side Wall, and Ceiling
A. Clearances from the side of the fireplace cabi-
net to any combustible material and wall
should follow diagram in Figure 6.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and pro-
trudes 3 1/2" from the wall. This combustible
material must be 4" from the side of the fire-
place opening (see Figure 6).
B. Clearances from the top of the fireplace
opening to the ceiling should not be less than
36 inches.
C. For mantel clearances, see Figure 10 on
page 12.
Figure 6 - Minimum Clearance for
Combustible to Wall
*Minimum 16 inches from Side Wall
*
Example
MINIMUM CLEARANCE TO
COMBUSTIBLE MATERIALS
Top Left and Bottom
Right Sides and Rear
36" 6" 0"
INSTALLATION
Continued
Actual Framing
Height 26" 26 7/8"
Front Width 26 3/4" 26 7/8"
Depth 9 1/2" 10 1/2"
Bottom 3/4" 3/4"
1. Frame in rough opening. Use dimensions shown
in Figure 7 for the rough opening. If installing
in a corner, use dimensions shown in Figure 8
for the rough opening. The height is 26 7/8" which
is the same as the wall opening above.
2. If installing GA3450T blower accessory, do
so at this time. Follow instructions included
with blower accessory.
Note: If not installing blower accessory, you
may wish to run electrical wiring to your fire-
place for future blower installation (see Ac-
cessories, page 40). Use only approved three-
wire electrical wiring.
WARNING: If pre-wiring, do
not connect wiring to any elec-
trical source at this time.
Install fireplace electrical outlet
and connect wiring to outlet be-
fore connecting to electrical
source. The fireplace electrical
outlet is included with the
GA3450T blower accessory.
Only use the fireplace electrical
outlet supplied with the
GA3450T blower accessory.
Note: A qualified installer should make all elec-
trical connections.
BUILT-IN FIREPLACE
INSTALLATION
Built-in installation of this fireplace involves in-
stalling fireplace into a framed-in enclosure. This
makes the front of fireplace flush with wall. An
optional trim kit accessory is available (see Ac-
cessories, page 40). Trim will extend past sides of
fireplace approximately 1/2 inch. This will cover
the rough edges of the wall opening. If installing
a built-in mantel above the fireplace, you must
follow the clearances shown in Figure 10, page
11. Follow the instructions below to install the fire-
place in this manner.
26
7
/ 8 "
26
7
/ 8 "
3/4" Off
The Floor
Minimum
10
1
/ 2 "
Figure 8 - Rough Opening for Installing
in Corner
Figure 7 - Rough Opening for Installing
in Wall
36
5
/ 8 "
25
7
/ 8 "
51
3
/ 4 "
26
7
/ 8 "

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3. Install gas piping to fireplace location. This
installation includes an approved flexible gas
line (if allowed by local codes) after the equip-
ment shutoff valve. The flexible gas line must
be the last item installed on the gas piping.
4. If you have not assembled firebox, follow in-
structions on page 6.
5. Carefully set fireplace in front of rough open-
ing with back of fireplace inside wall opening.
6. Attach flexible gas line to fireplace gas regu-
lator. See Connecting Fireplace to Gas Sup-
ply, page 19.
7. Bend four nailing flanges on outer casing with
pliers (see Figure 9).
8. Attach fireplace to wall studs using nails or
wood screws through holes in nailing flange.
9. Check all gas connections for leaks. See
Checking Gas Connections, page 19.
10. If using optional trim kit, install the trim after
final finishing and/or painting of wall. See
instructions included with trim accessory for
attaching trim.
IMPORTANT: When finishing your firebox, com-
bustible materials such as wall board, gypsum
board, sheet rock, drywall, plywood, etc. may be
butted up next to the sides and top edge of the
firebox. Combustible materials should never over-
lap the firebox front facing.
INSTALLATION
Continued
Figure 9 - Attaching Fireplace to Wall
Studs
Nailing
Flanges
Nails or
Wood
Screws
Wall
Studs
WARNING: Do not allow any
combustible materials to over-
lap 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 non-
combustible materials to cover
any necessary openings like lou-
vered slots.
WARNING: Never modify or
cover the louvered slots on the
front of the firebox.
WARNING: Use only non-
combustible mortar or adhe-
sives when overlapping the front
facing with noncombustible fac-
ing material.
Mantel Clearances for Built-In
Installation
If placing mantel above built-in fireplace, you must
meet minimum clearance between mantel shelf
and top of fireplace opening.
NOTICE: Surface temperatures
of adjacent walls and mantels
become hot during operation.
Walls and mantels above the fire-
boxmaybecomehottothe touch.
If installed properly, these tem-
peratures 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 clear-
ances shown, you must do one
of the following:
• raise the mantel to an accept-
able height
• remove the mantel

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112462-01C 13
Mantel Shelf
Side of Firebox
13" 16"
19"
21"
2
1
/ 2 "
6"
8"
10"
Note:
All vertical
measurements
are from top of
fireplace
opening to
bottom of
mantel shelf. All
measurements
are in inches.
Figure 10 - Minimum Mantel Clearances
for Built-In Installation
INSTALLATION
Continued
OPTIONAL MANTEL INSTALLATION
Note: Refer to instructions provided with the man-
tel for assembly instructions. Refer to the follow-
ing instructions for system installation. Refer to
instructions on page 5 for fireplace assembly.
Blower accessory should be installed if it is being
used (see Installing Blower Accessory GA3450T,
page 14).
1. Unscrew four screws that attach top louver to
fireplace. Remove louver from fireplace and
set aside.
2. Place fireplace on wood base.
3. Place mantel around fireplace/base assembly.
4. Assemble trim kit. See Assembling Trim,
page 14.
5. Firmly snap trim kit on shoulder screws.
Shoulder screws are located on fireplace cabi-
net (see Figure 11).
6. Align trim kit for flush fit around opening.
7. Use two 3" wood screws provided and attach
fireplace base to wooden base. There are holes
provided on each side and floor of firebox (see
Figure 11).
8. Place base assembly next to wall at installa-
tion location.
9. Remove trim kit and mantel. Be careful not
to damage wall or mantel.
10. Attach wood base to floor with two 1 3/4" black
screws provided (see Figure 12). If the floor
is concrete use anchor method (see Attaching
Wood Base to Solid Floor, page 17).
11. Install gas line. See Connecting To Gas Sup-
ply, page 17.
12. Check for leaks. See Checking Gas Connec-
tions, page 19.
13. Place mantel around fireplace. Be careful not
to damage wall or mantel.
14. Place trim kit on the shoulder screws located
on the side and top of the fireplace. Firmly
snap the trim over the shoulder screws on fire-
place (see Figure 11).
15. Adjust assembly to remove any gaps. Attach
remaining two 3" wood screws from hardware
pack through openings inside of fireplace sides
into the mantel. The openings are located at top
behind the area for the louvers (see Figure 11).
16. Reinstall top louvers.
Figure 11 - Attaching Trim to Fireplace
Shoulder
Screws
Assembled
Trim
Shoulder Screws Hole for
Attaching
Fireplace
to Mantel
Figure 12 - Attaching Wood Base to
Floor
1 3/4" Screw
Wood Base

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14
Assembling Trim (Trim shipped with
mantel)
1. Remove packaging from three remaining
pieces of trim.
2. Locate two adjusting plates with set screws,
and two shims in the hardware packet.
3. Align shim under adjusting plate as shown in
Figure 13.
4. Slide one end of adjusting plate/shim in slot
on mitered edge of top trim (see Figure 13).
5. Slide other end of adjusting plate/shim in slot
on mitered edge of side trim (see Figure 13).
6. While firmly holding edges of trim together,
tighten both set screws on the adjusting plate
with slotted screwdriver.
7. Repeat steps 1 through 6 for other corner.
8. Set assembly aside for later installation.
Figure 13 - Assembling Trim
Side Trim
Top Trim
Mitered Edge
Shim
Set
Screws
Adjusting Plate
Slot
Figure 14 - Removing Upper Louver
Blower
Bracket
Mounting
Holes
INSTALLING OPTIONAL BLOWER
ACCESSORY GA3450T
Removing Upper Louver
To install the blower accessory, you must first re-
move the upper louver.
1. Lift screen off fireplace and remove log set if
installed.
2. Remove 4 screws from upper louver (see Fig-
ure 14). Save these screws.
3. Pull upper louver straight out from the cabi-
net. Be careful not to scratch the paint. Set
louver and screws aside.
4. Open lower louver door by swinging door
down (see Figure 15, page 15).
Upper Louver
INSTALLATION
Continued
Installing Blower Accessory
Note: If you are using a mantel with your fireplace,
use the following instructions. If your fireplace is
built-in, see For Built-In Installation, page 16.
CAUTION: Label all wires
prior to disconnection when ser-
vicing controls. Wiring errors
can cause improper and dan-
gerous operation.
CAUTION: Verify proper op-
eration after servicing.
1. Locate fan switch cover. Remover bottom
screw to remove back portion of the cover.
2. Install snap bushings found in hardware kit
into both holes in rear of fan switch cover.
3. Make sure the wire harness is firmly con-
nected to the terminals on the blower bracket
assembly.
4. Note the wire locations on back of AUTO/
OFF/ON switch. The terminals on back of
switch are numbered 1, 2, and 3. Carefully
remove red wire from terminal 3 and blue wire
from terminal 1. Black wire can remain on
middle terminal 2 (see Figure 15, page 15).
5. Carefully disconnect green and white wires
at their insulated connectors (see Figure 16,
page 15).

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112462-01C 15
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Figure 15 - Installing Blower (Thermostat Unit Shown)
Wire Harness
Blower Bracket Assembly
Screw
Wire
Harness
Switch
Baffle
Wiring Routing Hole
in Baffle
Switch
Plate Blue
Red Rear Fan
Switch Cover
Snap
Bushing
Power Cord
Black
Blower Mounting
Holes
Lower Louver Door
Front Fan
Switch
Cover
INSTALLATION
Continued
6. In top of the fireplace cabinet, locate the four
mounting holes on the outer casing. Align
these four holes with those on the blower
bracket assembly. Attach blower bracket as-
sembly to the outer casing with 4 #10 screws
provided (see Figure 15).
7. Route the wire harness through the hole in left
side of baffle. Pull wire harness through lower
opening of firebox (see Figure 15).
8. Insert the 4 wire harnesses into one of the
round holes in the rear of the fan switch cover
and through the rectangular hole on front of
the fan switch cover (see Figure 15).
8. Reconnect red wire to switch position 3. Re-
connect blue wire to switch position 1. Re-
connect green and white wires.
9. Install the switch plate on front of fan switch
cover with 2 #10 screws provided (see Fig-
ure 17, page 16). Using screw removed in
step one, reconnect front and rear of fan
switch cover.
Figure 16 - Wiring Diagram For Blower
Accessory Standard Installation
Red
Red
Fan Switch
(Auto/Off/On)
Blue
Blue
Thermostat
Switch
(N.O.)
Green
White
Green
White
On
110/115
V.A.C.
Blower
Motor
Black
Off
1
2
3
Auto

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16
10. Route power cord out of the cabinet by in-
serting it through the bushing on the outer cas-
ing (see Figure 15, page 15). Plug fan kit into
120-Volt grounded power supply and test op-
eration. Note: When switch is in the AUTO
position, the fan will start after the fireplace
has run for a few moments. The fan will con-
tinue to run for several moments after the fire-
place has been turned off. When switch is in
the ON position, the fan will run until turned
to OFF. Reinstall upper louver (see Figure 14,
page 14). Close lower louver door.
INSTALLATION
Continued
Red
Red
Fan Switch
(Auto/Off/On)
Blue
Blue
Thermostat
Switch
(N.O.)
Green
White
Green
White
On
110/115
V.A.C.
Blower
Motor
Black
Off
1
2
3
Auto
Figure 18 - Wiring Diagram For Blower
Accessory Built-In Installation
For Built-In Installation
WARNING: A licensed elec-
trician must connect the wiring
harness to electrical supply fol-
lowing all local codes. Electri-
cian must provide a clamp on
the box cover to secure the wir-
ing. Wiring should be routed
through the bushing in the hole
on the outer casing of fireplace.
1. Locate fan switch cover. Remove bottom
screw to remove back portion of the cover (see
Figure 17).
2. Install a snap bushing found in hardware kit
into one of the holes on rear of fan switch cover.
The other hole is for a strain relief clamp (not
supplied) to secure incoming electrical supply.
3. Follow steps 3 through 7 in Installing Blower
Accessory, page 14.
4. A licensed electrician must follow the wiring
diagram to connect incoming electrical sup-
ply to fan kit wiring harness (see Figure 18).
Figure 17 - Installing Switch Plate to Fan
Switch Cover
Switch
Cover
Screw
Screw
Rear -
Fan
Switch
Cover
Front - Fan
Switch Cover
Switch Plate
5. Install the switch plate on front of fan
switch cover with 2 #10 screws provided
(see Figure 17). Using screw removed in
step one, reconnect front and rear of fan
switch cover.
6. Plug power cord to the outlet receptacle (not
provided) as shown in Figure 19, page 17. Wind
extra cable of power cord and tie it up with the
plastic wire strap (see Figure 19, page 17). Set
the cable bundle between the fan switch box
and outer casing, away from the burner.
7. Test to make sure the blower is working
properly.
8. Reinstall upper louver (see Figure 14, page
14) and close lower louver.
Extension Cord
Use extension cord if needed. The cord must have a
three-prong, grounding plug and a three-hole recep-
tacle. Make sure cord is in good shape. It must be
heavy enough to carry the current needed. An under-
sized cord will cause a drop in line voltage. This will
result in loss of power and overheating. Use a No.
16 AWG cord for lengths less than 50 feet.

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112462-01C 17
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Figure 19 - Installing Blower (Thermostat Unit Shown)
Blower Bracket
Assembly
Screw
Wire Harness
Plastic
Wire
Strap Wire
Harness
Switch
Plate
Switch
Outlet
Receptacle (not
included)
Power Cord
Lower Louver
Door
Blue
Red
Black
Clamp
Connector
(not included)
INSTALLATION
Continued
Figure 20 - Folding Anchor
CONNECTING TO GAS SUPPLY
WARNING: This appliance re-
quires a 45° male flare fitting 5/8"-
18 UNF (Unified National Fine
Thread) inlet connection and the
flexible gas line provided.
WARNING: A qualified ser-
vice person must connect fire-
place to gas supply. Follow all
local codes.
WARNING: Never connect
natural gas fireplace to private
(non-utility) gas wells. This gas
is commonly known as well-
head gas.
ATTACHING WOOD BASE TO
SOLID FLOOR
For attaching base to solid floors (concrete or
masonry)
Note: Floor anchors and mounting screws are in
hardware package. The hardware package is pro-
vided with fireplace.
1. Drill holes at marked locations using 5/16"
drill bit. For solid floors (concrete or ma-
sonry), drill at least 1" deep.
2. Fold floor anchor as shown in Figure 20.
3. Insert floor anchor (wings first) into hole. Tap
anchor flush to floor.
4. Insert mounting screws through base and into
floor anchors.
5. Tighten screws until base is firmly fastened
to floor.

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18
INSTALLATION
Continued
IMPORTANT: For natural gas, check gas line
pressure before connecting fireplace to gas line.
Gas line pressure must be no greater than 14 inches
of water. If gas line pressure is higher, heater regu-
lator damage could occur.
CAUTION:Neverconnect pro-
pane/LP fireplace directly to the
propane/LPsupply. This fireplace
requiresan externalregulator (not
supplied).Installtheexternal regu-
lator between the fireplace and
propane/LP supply.
For propane/LP units, the installer must supply an
external regulator. The external regulator will re-
duce incoming gas pressure. You must reduce in-
coming gas pressure to between 11 and 14 inches
of water. If you do not reduce incoming gas pres-
sure, fireplace regulator damage could occur. In-
stall external regulator with the vent pointing down
as shown in Figure 21. Pointing the vent down
protects it from freezing rain or sleet.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing
may be used in certain areas.
Check your local codes. Use
pipe of 1/2" or greater diame-
ter to allow proper gas volume
to fireplace. If pipe is too small,
undue loss of volume will occur.
Installation must include an equipment shutoff
valve, union, and plugged 1/8" NPT tap. Locate
NPT tap within reach for test gauge hook up. NPT
tap must be upstream from heater (see Figures 22).
IMPORTANT: Install equipment shutoff valve in an
accessible location. The equipment shutoff valve is
for turning on or shutting off the gas to the appliance.
Check your building codes for any special require-
ments for locating equipment shutoff valve to fire-
places.
Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from go-
ing into pipe. Excess sealant in pipe could result
in clogged fireplace valves.
Propane/LP
Supply Tank
External Regulator
Figure 21 - External Regulator With Vent
Pointing Down
Vent Pointing Down
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer. See Ac-
cessories, page 40.
Figure 22 - Gas Connection
CSA Design-
Certified Equipment
Shutoff Valve With
1/8" NPT Tap*
3" Minimum
Approved
Flexible Gas
Line
Pipe Nipple Cap Tee Joint
Propane/LP
From External
Regulator (11"
W.C.** to 14"
W.C. Pressure)
NATURAL
From Gas Meter
(5" W.C.** to
10.5" W.C.
Pressure)
Sediment Trap
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
We recommend that you install a sediment trap in
supply line as shown in Figure 22, page 18. Lo-
cate sediment trap where it is within reach for
cleaning. Install in piping system between fuel sup-
ply and heater. Locate sediment trap where trapped
matter is not likely to freeze. A sediment trap traps
moisture and contaminants. This keeps them from
going into fireplace controls. If sediment trap is
not installed or is installed wrong, fireplace may
not run properly.

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112462-01C 19
➞
➞
CONNECTING FIREPLACE TO GAS
SUPPLY
Installation Items Needed
• Phillips screwdriver
• sealant (resistant to propane/LP gas, not provided)
NOTICE: Most building codes
do not permit concealed gas
connections. A flexible gas line
is provided to allow accessibil-
ity from the fireplace (see Fig-
ure 1, page 5). The flexible gas
supply line connection to the
equipment shutoff valve should
be accessible.
1. Route flexible gas line, included, from fire-
place control to equipment shutoff valve
through side or rear access holes in outer cas-
ing (see Figure 1, page 5).
2. Apply pipe joint sealant lightly to male threads
of gas connector attached to flexible gas line/
equipment shutoff valve (see Figure 23).
CAUTION: Avoid damage to
regulator.Holdgasregulatorwith
wrench when connecting it to
gas piping and/or fittings (Ther-
mostat-Controlled Models Only).
CAUTION: Avoid damage to
gas control. Hold gas control
with wrench when connecting it
to gas piping and/or fittings (Re-
mote-Ready Models Only).
3. Check all gas connections for leaks. See
Checking Gas Connections.
4. Feed flexible gas line into fireplace base area
while replacing branch support. Make sure the
entire flexible gas line is in fireplace base area.
INSTALLATION
Continued
Figure 23 - Attaching Flexible Gas Line
to Equipment Shutoff Valve
Flexible Gas Line
from Fireplace Gas
Regulator Provided
With Fireplace
To Gas Regulator
(Thermostat-Controlled
Models) or Control Valve
(Remote-Ready Models)
Equipment
Shutoff Valve
PROPANE/LP
To External
Regulator
NATURAL
To Gas Supply
CHECKING GAS CONNECTIONS
WARNING: Test all gas pip-
ing and connections, internal
and external to unit, for leaks
after installing or servicing. Cor-
rect all leaks at once.
WARNING: Never use an
open flame to check for a leak.
Apply a noncorrosive leak de-
tection fluid to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply
and fireplace. See guidelines
under Connecting to Gas Sup-
ply , page 17.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect appliance with its appliance main gas
valve (control valve) and equipment shutoff valve
from gas supply piping system. Pressures in ex-
cess of 1/2 psig will damage heater regulator.
2. Cap off open end of gas pipe where equip-
ment shutoff valve was connected.

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3. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve lo-
cated on or near gas meter for natural gas, or
using compressed air.
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect fireplace and equipment shutoff
valve to gas supply. Check reconnected fit-
tings for leaks.
Test Pressures Equal To or Less Than 1/2
PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 24).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve lo-
cated on or near gas meter for natural gas, or
using compressed air.
3. Check all joints from gas meter to equipment
shutoff valve for natural gas or propane/LP
supply to equipment shutoff valve for pro-
pane/LP (see Figures 25 or 26). Apply non-
corrosive leak detection fluid to all joints.
Bubbles forming show a leak.
4. Correct all leaks at once.
INSTALLATION
Continued
Figure 24 - Equipment Shutoff Valve
ON
POSITION
OFF
POSITION
Open
Closed
Equipment
Shutoff Valve
Figure 25 - Checking Gas Joints
(Propane/LP Only)
Propane/LP
Supply Tank
Equipment
Shutoff Valve
Gas Regulator or
Gas Control Valve
Equipment
Shutoff Valve
Gas
Meter
Figure 26 - Checking Gas Joints (Natural
Gas Only)
Gas Regulator or
Gas Control Valve
PRESSURE TESTING FIREPLACE GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure 24).
2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP sup-
ply tank valve.
3. Make sure control knob of fireplace is in the
OFF position.
4. Check all joints from equipment shutoff valve
to gas regulator (Thermostat-Controlled Mod-
els), or to gas control valve (Remote-Ready
Models) (see Figures 25 or 26). Apply non-
corrosive leak detection fluid to all joints.
Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light fireplace (see Operating Fireplace,
page 23). Check all other internal joints for
leaks.
7. Turn off fireplace (see To Turn Off Gas to Ap-
pliance, page 25 for Thermostat-Controlled
Models or page 27 for Remote-Ready Models).