Comfort Glow CGCFTN Quick start guide

CGCFTP
CGCFTN
14,000 to 26,000 Btu/Hr
withThermostat
WARNING:Iftheinformationinthismanualisnot
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
flammablevaporsandliquidsinthevicinityof
this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Donottouchanyelectricalswitch;donotuse
any phone in your building.
• Immediately call your gas supplier from a
neighbor’sphone.Followthegassupplier’s
instructions.
• If you cannot reach your gas supplier, call
the fire department.
— Installation and service must be performed
bya qualifiedinstaller, serviceagency, orthe
gas supplier.
WARNING:Improperinstallation,adjust-
ment,alteration,service,ormaintenance
can cause injury or property damage.
Refer to this manual for correct installa-
tionandoperationalprocedures.Foras-
sistance or additional information con-
sultaqualifiedinstaller,serviceagency,
or the gas supplier.
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 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
Save this manual for future reference.
Save this manual for future reference.
WARNING: This is an unvented gas-
firedheater.Itusesair(oxygen)fromthe
room in which it is installed. Provisions
for adequate combustion and ventila-
tionairmustbeprovided.Referto Airfor
Combustion and Ventilation section on
page 5 of this manual.
VENT-FREE COMPACT FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
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Shown with Optional
Cabinet Mantel/Hearth
Base Accessory

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TABLE OF CONTENTS
SAFETY INFORMATION
DANGER: Carbon monoxide poisoning may lead
to death!
SAFETY INFORMATION
Carbon Monoxide Poisoning: Early signs of carbon monoxide
poisoningresemble the flu, withheadaches, 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
pregnantwomen,peoplewithheartorlungdiseaseoranemia,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
youdetectagasleak.However,theodoraddedtothegascanfade.Gas
may be present even though no odor exists.
Make certain you read and understand all warnings. Keep this
manual for reference. It is your guide to safe and proper operation
of this fireplace.
WARNING ICON G 001
WARNINGS
IMPORTANT: Read this owner’s manual carefully
and completely before trying to assemble, operate,
or service this fireplace. Improper use of this fire-
place can cause serious injury or death from burns,
fire,explosion,electricalshock,andcarbonmonox-
ide poisoning.
WARNING:Thisproductcontainsand/orgenerates
chemicals known to the State of California to cause
cancer or birth defects, or other reproductive harm.
WARNING: Any change to this fireplace or its
controls can be dangerous.
WARNING: Donot allowfans toblow directlyinto
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.
WARNING: Do not use a blower insert, heat ex-
changer insert, or other accessory not approved for
use with this fireplace.
Due to high temperatures, the appliance should be
located out of traffic and away from furniture and
draperies.
Donotplaceclothingorotherflammablematerialon
or near the appliance. Never place any objects on
the heater.
Fireplace front and screen becomes very hot when
running fireplace. Keep children and adults away
fromhot surfacesto avoidburnsor clothingignition.
Fireplace will remain hot for a time after shutdown.
Allow surfaces to cool before touching.
Carefully supervise young children when they are in
same room with fireplace.
Keeptheappliancearea clearandfreefromcombus-
tiblematerials,gasoline,andotherflammablevapors
and liquids.
You must operate this fireplace with the fireplace
screeninplace.Makesurefireplacescreenisinplace
before running fireplace.
TABLE OF CONTENTS
SAFETY INFORMATION ............................................................ 2
LOCAL CODES........................................................................... 3
PRODUCT IDENTIFICATION ..................................................... 3
PRODUCT FEATURES .............................................................. 4
UNPACKING ............................................................................... 4
ASSEMBLY ................................................................................. 4
AIR FOR COMBUSTION AND VENTILATION ........................... 5
INSTALLATION ........................................................................... 7
OPERATING FIREPLACE ........................................................ 17
INSPECTING BURNER ............................................................ 18
CLEANING AND MAINTENANCE ............................................ 19
TROUBLESHOOTING .............................................................. 20
SPECIFICATIONS .................................................................... 23
REPLACEMENT PARTS .......................................................... 23
SERVICE HINTS....................................................................... 23
TECHNICAL SERVICE ............................................................. 23
ILLUSTRATED PARTS BREAKDOWNAND PARTS LIST ....... 24
PARTS CENTRALS .................................................................. 26
OWNER’S REGISTRATION FORM.......................................... 27
ACCESSORIES ........................................................................ 29
WARRANTY INFORMATION ...................................... Back Cover

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PRODUCT IDENTIFICATION
Figure 1 - Vent-Free Gas Compact Fireplace
LOCAL CODES
Install and use fireplace with care. Follow all local codes. In the
absenceoflocalcodes,usethelatesteditionofTheNationalFuelGas
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
SAFETY INFORMATION
Continued
Ignitor Button
Screen
Fireplace
Cabinet
Log Set
Control Knob
SAFETY INFORMATION
LOCAL CODES
PRODUCT IDENTIFICATION
1. 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.
2. Do not place propane/LP supply tank(s) inside any structure. Lo-
catepropane/LP supply tank(s)outdoors(propane/LPunits only).
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 bedroom or 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, ver-
miculite,or rock wool.Using theseadded itemscan causesoot-
ing. 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: During initial operation, slight smoking could occur due
to log curing and fireplace burning manufacturing residues.
8. To prevent the creationof soot, follow theinstructions in Clean-
ing and Maintenance, page 19.
9. Before using furniture polish, wax, carpet cleaner, or similar
products, turn heater off. If heated, the vapors from these prod-
ucts 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 Depletion Sensing (ODS) safety
shutoffsystem.TheODSshuts down the fireplaceif not enough
fresh air is available. See Air for Combustion and Ventilation,
pages 5 through 7. If fireplace keeps shutting off, see Trouble-
shooting, pages 20 through 22.
11. Do not run fireplace
• where flammable liquids or vapors are used or stored.
• under dusty conditions.
12. Do not use this fireplace to cook food or burn paper or
other objects.
13. Never place any objects in the fireplace or on logs.
14. Do not use fireplace if any part has been under water. Immedi-
ately call a qualified service technician to inspect the room
fireplace and to replace any part of the control system and any
gas control which has been under water.
15. Turnoffandunplugfireplaceand let cool before servicing. Only
a qualified service person should service and repair fireplace.
16. Operating fireplace above elevations of 4,500 feet could cause
pilot outage.
17. Do not operate fireplace if any log is broken. Do not operate
fireplace if a log is chipped (dime-sized or larger).
18. To prevent performance problems, do not use propane/LPfuel
tank of less than 100 lbs. capacity (propane/LP units only).
19. Provide adequate clearances around air openings.

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SAFETY PILOT
ThisfireplacehasapilotwithanOxygenDepletion 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.
PIEZO IGNITION SYSTEM
This fireplace has a piezo ignitor. This system requires no matches,
batteries, or other sources to light fireplace.
THERMOSTATIC HEAT CONTROL
Thisfireplacehasathermostatsensingbulbandacontrolvalve.The
thermostat will automatically modulate the heat output to maintain
a consistent room temperature. This results in greater fireplace
comfort. This can also result in lower gas bills.
UNPACKING
1. Remove log box and fireplace from carton. IMPORTANT: The
fireplace hood is inside the cardboard protective end wrap on
the left side of fireplace (as viewed from front). Adecal is on
the outside of the cardboard end wrap stating hood is enclosed
(see Figure 2).
2. Remove hood from cardboard protective end wrap as shown
in Figure 2.
3. Removeallprotectivepackagingappliedto fireplaceforshipment.
4. Make sure your fireplace includes one hardware packet.
5. Check fireplace for any shipping damage. If fireplace is dam-
aged, promptly inform dealer where you bought fireplace.
Figure 2 - Removing Fireplace Hood
IMPORTANT:
THIS PACKAGE CONTAINS A
FIREPLACE HOOD. UNWRAP
CARTON AND REMOVE HOOD
BEFORE DISCARDING
PROTECTIVE PACKAGING.
1
2
Hood
Cardboard Protective
Fireplace End Wrap
Hood Enclosed
Decal
ASSEMBLY
WARNING: Always have branch support and
screen in place before operating fireplace. This pre-
vents excessive temperatures on fireplace surfaces.
Figure 3 - Assembling Fireplace
ASSEMBLING FIREPLACE
Tools Required:
• Phillips screwdriver
• 5/16" hex wrench
• slotted screwdriver
• scissors
Installing Log
1. Lift screen up and pull out to remove.
2. Cut two plastic straps to remove the log from the firebox cavity.
3. An optional blower is available. See Accessories, page 29. In-
stall optional blower now. Follow installation instructions pro-
vided with blower.
4. Remove log packaging material and discard packaging. Gently
place log set on burner support (see Figure 3). The log should
fit flat against top of burner support and log locator tabs fit
into the slots under the log. Do not allow log to contact flame.
If flame contacts log, soot will be created.
5. Reattach screen by placing the notches in the screen frame
over the shoulder screws and pushing down.
WARNING: Failure to position the parts in accor-
dance with these diagrams or failure to use only parts
specifically approved with this fireplace may result in
property damage or personal injury.
PRODUCT FEATURES
Log
Screen
Burner Support with
Log Locator Tabs
Branch Support
Shoulder
Screw
PRODUCT FEATURES
UNPACKING
ASSEMBLY
Assembling Fireplace

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Figure 4 - Assembling Hood
Hood Tab
Assembling Hood
1. Locate four black phillips sheet metal screws from the hard-
ware packet.
2. Rotate hood as shown in Figure 4. Make sure hood tabs
point toward fireplace.
3. Insert hood tabs between baffle and louvers (see Figure 4).
4. Gently rotate hood to upright position. Make sure hood tabs are
behindlouvers and hoodis resting onfirebox top(see Figure4).
5. Align screw holes on hood with screw holes on firebox top.
6. Insert screws as shown in Figure 4. Tighten screws firmly.
Sheet Metal
Screws
Louver
Baffle
Firebox Top
Hood
Hood Tabs
ASSEMBLY
Continued
AIR FOR COMBUSTION AND
VENTILATION
Today’s homes are built more energy efficient than ever. New materi-
als, increased insulation, and new construction methods help reduce
heat loss in homes. Home owners weather strip and caulk around
windowsand doorstokeepthe coldairoutand thewarmairin. During
heatingmonths,homeownerswanttheirhomesasairtightaspossible.
WARNING: This heater shall not be installed in a
confined space or unusually tight construction un-
less provisions are provided for adequate combus-
tion and ventilation air. Read the following instruc-
tionstoinsureproperfreshairforthisandotherfuel-
burning appliances in your home.
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.
Exhaustfans,fireplaces,clothesdryers,andfuelburningappliances
drawairfromthehousetooperate.Youmustprovideadequatefresh
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 following ventilation
classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 5 through 7 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 andceilings exposed tothe outsideatmosphere
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 win-
dows and doors and
c. caulking or sealants are applied to areas such as
joints around window and door frames,between sole
platesand floors,between wall-ceilingjoints,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 7 .
If your home does not meet all of the three criteria above,
proceed to Determining Fresh-Air Flow For Fireplace
Location , page 6.
ASSEMBLY
Assembling Fireplace (Cont.)
AIR FOR COMBUSTION AND VENTILATION
Providing Adequate Ventilation

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AIR FOR COMBUSTION AND
VENTILATION
Continued
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 m3per kw) of the aggregate input rating
of all appliances installed in that space and an unconfined space as
aspacewhosevolumeisnotlessthan50cubicfeetper1,000Btuper
hour (4.8 m3per 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
furnishedwithdoors, are consideredapartoftheunconfined space.
* Adjoining rooms are communicating only if there are doorless
passageways or ventilation grills between them.
DETERMINING FRESH-AIR FLOW FOR
HEATER LOCATION
Determining if You Have a Confined or
Unconfined Space
Usethiswork sheettodetermine if youhave a confinedorunconfined space.
Space:Includestheroominwhichyouwillinstallheaterplusanyadjoining
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 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling
height) = 2560 cu. ft. (volume of space)
Ifadditionalventilation toadjoiningroom is suppliedwithgrills oropen-
ings, 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: 2560 cu. ft. (volume of space) x 20 = 51,200 (maximum
Btu/Hr the space can support)
WARNING: If the area in which the heater may be
operated is smaller than that defined as an uncon-
fined space or if the building is of unusually tight
construction,provideadequatecombustionandven-
tilation air by one of the methods described in the
National Fuel Gas Code, ANSI Z223.1/NFPA 54 Sec-
tion 5.3 or applicable local codes .
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 com-
bustion air from the outdoors and vents to the outdoors.
Example:
Gas water heater _____________ Btu/Hr
Vent-free heater + _____________ Btu/Hr
Total = _____________ 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: 51,200 Btu/Hr (maximum the space can support)
56,000 Btu/Hr (actual amount of Btu/Hr used)
Thespace in theabove example is a confinedspace because the actual Btu/
HrusedismorethanthemaximumBtu/Hrthespacecansupport.Youmust
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
roomor add ventilation grills betweenrooms. SeeVentilationAir From
Inside Building, page 7.
B. Vent room directly to the outdoors. See Ventilation Air From Out-
doors, page 7.
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,thespaceisanunconfinedspace.Youwillneednoadditionalfresh
air ventilation.
30,000
26,000
56,000
AIR FOR COMBUSTION AND VENTILATION
Providing Adequate Ventilation (Cont.)
Determining Fresh-Air Flow for Heater Location

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Figure 6 - Ventilation Air from Outdoors Shown with Optional
Mantel
Outlet
Air Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
AIR FOR COMBUSTION AND
VENTILATION
Continued
Figure 5 - Ventilation Air from Inside Building Shown with
Optional Mantel
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 12" of the floor on the wall connecting the two spaces
(see options 1 and 2, Figure 5). You can also remove door into
adjoining room (see option 3, Figure 5). 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.
Ventilation Air From Outdoors
Provideextrafreshairbyusingventilationgrillsorducts.You must
provide two permanent openings: one within 12" of the ceiling and
one within 12" of the floor. Connect these items directly to the
outdoorsorspacesopentothe outdoors.Thesespacesincludeattics
andcrawlspaces.FollowtheNationalFuelGasCode,ANSIZ223.1/
NFPA 54, Section 5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
IMPORTANT: Donotprovideopeningsforinletoroutletairintoattic
if attic has a thermostat-controlled power vent. Heated air entering the
attic will activate the power vent.
Or
Remove
Door into
Adjoining
Room,
Option 3
Ventilation Grills
Into Adjoining Room,
Option 2
12"
12"
Ventilation
Grills
into Adjoining
Room,
Option 1
INSTALLATION
Note: Your Comfort Glow fireplace is designed to be used in zero
clearance installations. Wall or framing material can be placed
directlyagainst anyexteriorsurfaceofyour fireplace,exceptwhere
standoff spacers are integrally attached. If standoff spacers are
attached to your fireplace, these spacers can be placed directly
against wall or framing materials.
Use the dimensions shown for rough openings to create the easiest
installation (see Built-In Fireplace Installation, page 9)
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: A qualified service person must in-
stall fireplace. Follow all local codes.
NOTICE: This heater is intended for use as supple-
mental heat. Use this heater along with your primary
heating system. Do not install this heater as your
primary 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
throughoutthehouse.Intheeventofapoweroutage,
you can use this heater as your primary heat source.
AIR FOR COMBUSTION AND VENTILATION
Ventilation Air
INSTALLATION
Check Gas Type

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You can recess firebox into the wall. You can also position fireplace
in the optional cabinet or corner mantels. IMPORTANT: Only use
optionalcabinetorcorner mantels specified in this manual. Purchase
the optional mantel from your dealer (see Accessories, page 29).
CAUTION: This fireplace creates warm air cur-
rents. These currents move heat to wall surfaces next
to fireplace. Installing fireplace next to vinyl or cloth
wallcoveringsoroperatingfireplacewhereimpurities
(such as, but not limited to, tobacco smoke, aromatic
candles,cleaningfluids,oilorkerosenelamps,etc.)in
the air exist, may discolor walls or cause odors.
WARNING: Never install the fireplace
•in a bedroom or a bathroom
•in a recreational vehicle
•where curtains, furniture, clothing, or other flam-
mable 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
I MPORTANT: Vent-freefireplacesaddmoisturetotheair.Although
this is beneficial, installing fireplace in rooms without enough venti-
lationair may causemildew toform fromtoo muchmoisture. SeeAir
for Combustion and Ventilation, pages 5 through 7.
Note: When installing fireplace directly on carpeting, 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
LOCATING FIREPLACE
WARNING: Maintain the minimum clearances
shown in Figures 7 and 8. If you can, provide greater
clearances from floor, ceiling, and joining wall.
Figure 8 - Mounting Clearances As Viewed From Front of
Fireplace Shown with Optional Mantel
Figure 7 - Mounting Clearances As Viewed From Front of
Fireplace Shown Built In The Wall
6"
Minimum
From
Sides Of
Fireplace
Left
Side
CEILING
36" Minimum
FLOOR
Right
Side
Top Of
Mantel Can
Be Flush
With Wall
Left
Side
CEILING
Right
Side
36"
Minimum
INSTALLATION ITEMS
Beforeinstallingfireplace,makesureyouhavetheitemslistedbelow.
• external regulator - propane/LP only (supplied by installer)
• 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
* ACSAdesign-certifiedequipmentshutoffvalvewith1/8"NPTtap
is an acceptable alternative to test gauge connection. Purchase the
optional CSA design-certified equipment shutoff valve from your
dealer. See Accessories, page 29.
Note: If desired, purchase a four-sided brass trim kit for built-in
installations. See Accessories, page 29.
0" Minimum To Top
Surface Of Carpeting,
Tile Or Other
Combustible Material
0" Minimum To Top
Surface Of Carpeting,
Tile Or Other
Combustible Material
INSTALLATION
Continued
CAUTION:Ifyouinstallthefireplaceinahomegarage
•fireplacepilotandburner mustbe atleast18inches
above floor.
•locatefireplacewheremovingvehiclewillnothitit.
INSTALLATION
Installation Items
Locating Fireplace

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INSTALLATION
Continued
36
5/8
"25
7/8
"
51
3/4
"
26
7/8
"
1. Frame in rough opening. Use dimensions shown in Figure 9 for
the rough opening.
If installing in a corner, use dimensions shown in Figure 10
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. Fol-
low instructions included with blower accessory. Note: If not
installing blower accessory, you may wish to run electrical wir-
ing to your fireplace for future blower installation (see Accesso-
ries, page 29). Use only approved three-wire electrical wiring.
Note: Aqualifiedinstaller should makeallelectricalconnections.
267 / 8"
267
/ 8"
3/4" Off
The Floor
Minimum
10 1 / 2"
Figure 9 - Rough Opening for
Installing in Wall
BUILT-IN FIREPLACE INSTALLATION
Built-ininstallation of this fireplaceinvolves installingfireplace into
a framed-in enclosure. This makes the front of fireplace flush with
wall. An optional brass trim kit accessory is available (see Accesso-
ries, page 29). Brass trim will extend past sides of fireplace approxi-
mately 1/2 inch. This will cover the rough edges of the wall opening.
Ifinstallingabuilt-inmantelabovethefireplace,youmustfollowthe
clearances shown in Figure 12, page 10. Follow the instructions
below to install the fireplace in this manner. Note: Your Comfort
Glow 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.
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"
Figure 11 - Attaching Fireplace to Wall Studs
Figure10 - Rough Opening
for Installing in Corner
WARNING:If pre-wiring,do notconnect wiringto
any electrical source at this time.
Install fireplace electrical outlet and connect wiring
to outlet before connecting to electrical source. The
fireplaceelectricaloutletisincludedwiththeGA3450T
blower accessory.
Only use the fireplace electrical outlet supplied with
the GA3450T blower accessory.
3. Install gas piping tofireplace location.Thisinstallation includes
an approved flexible gas line (if allowed by local codes) after
the equipment shutoff valve. The flexible gas line must be the
last item installed on the gas piping.
4. If you have not assembled firebox, follow instructions on page 4.
5. Carefully set fireplace in front of rough opening with back of
fireplace inside wall opening.
6. Attach flexible gas line to fireplace gas regulator. See Con-
necting to Gas Supply, page 14.
7. Bend four nailing flanges on outer casing with pliers (see
Figure 11).
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 Con-
nections, page 16.
10. If using optional brass trim kit, install the trim after final fin-
ishing and/or painting of wall. See instructions included with
brass trim accessory for attaching brass trim.
IMPORTANT: When finishing your firebox, combustible materials
suchaswall board, gypsum board, sheetrock,drywall,plywood,etc.
maybebuttedupnexttothesidesandtopofthefirebox.Combustible
materials should never overlap the firebox front facing.
Nails or Wood
Screws
Nailing
Flanges
For convenience and efficiency, install fireplace
• where there is easy access for operation, inspection, and service.
• in coldest part of room
An optional blower kit is available from your dealer. See Accesso-
ries, page 29. If planning to use blower, locate fireplace near an
electrical outlet.
INSTALLATION
Locating Fireplace (Cont.)
Built-In Fireplace Installation

111044-01D
For more information, visit www.desatech.com
For more information, visit www.desatech.com
10
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.
MANTEL CLEARANCES FOR BUILT-IN
INSTALLATION
Ifplacing mantel above built-in fireplace,you must meet minimum
clearance between mantel shelf and top of fireplace opening.
Figure 12 - Minimum Mantel Clearances for Built-In Installation
Mantel Shelf
Side of
Firebox
INSTALLATION
Continued
NOTICE:Surface temperaturesof adjacentwallsand
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.
Followallminimumclearancesshowninthismanual.
NOTICE: If your installation does not meet the mini-
mum clearances shown, you must do one of the
following:
•raise the mantel to an acceptable height
•remove the mantel
WARNING: Do not allow any combustible materi-
als 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.
WARNING: Never modify or cover the louvered
slots on the front of the firebox.
Note: All vertical
measurements are
from top of fireplace
opening to bottom of
mantel shelf. All
measurements are in
inches.
OPTIONAL MANTEL INSTALLATION
Note: Refer to instructions provided with the mantel for assembly
instructions. Refer to instructions below for system installation.
Refer to instructions on page 4 for firebox assembly. Blower
accessory should be installed if it is being used (see Installing
Blower Accessory GA3450T, pages 11 through 13).
1. Unscrew four brass 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 brass trim kit. See Assembling Brass Trim, page 11.
5. Firmly snap brass trim kit on shoulder screws. Shoulder screws
are located on fireplace cabinet (see Figure 13).
Shoulder Screws
Assembled Brass Trim
Hole for 3"
Wood Screw
for Attaching
Fireplace to
Wooden Base
Hole for 3"
Wood Screw
for Attaching
Fireplace to
Mantel
Figure 13 - Attaching Brass Trim to Fireplace
INSTALLATION
Built-In Fireplace Installation (Cont.)
Mantel Clearances for Built-In Installation
Optional Mantel Installation