Desa VMH10TPB Specification sheet

UNVENTED (VENT-FREE) GAS
COMPACT CLASSIC HEARTH®
FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
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WARNING: If the information in this manual is not
followedexactly,afireorexplosionmayresultcaus-
ing 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 in-
structions.
• Ifyoucannotreach your gassupplier,callthe fire
department.
— Installationandservicemust beperformedbya quali-
fied installer, service agency, or the gas supplier.
WARNING: Improper installation,
adjustment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this
manual for correct installation and
operationalprocedures.For assis-
tanceoradditionalinformationcon-
sult a qualified installer, service
agency, or the gas supplier.
WARNING:Thisisanunventedgas-
fired heater. It uses air (oxygen)
from the room in which it is in-
stalled. Provisions for adequate
combustion and ventilation air
must be provided. Refer to Air for
Combustion and Ventilation sec-
tion on page 6 of this manual.
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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
Thermostat Models:
VMH10TPB, VMH10TNB,
EFS10TP and EFS10TN
Remote-Ready Models:
VMH26PRA, VMH26NRA,
EFS26PR, and EFS26NR
Shown with Optional
Cabinet Mantel/Hearth
Base Accessory

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WARNING: Do not use a blower insert, heat
exchanger insert, or other accessory not approved
for use with this fireplace.
WARNING:Do notallowfans 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 furniture and
draperies.
Donotplaceclothingorotherflammablematerialon
or near the appliance. Never place any objects on
the heater.
Fireplace front and screen become very hot when
running heater. Keep children and adults away from
hot surfaces to avoid burns or clothing ignition.
Fireplace will remain hot for a time after shutdown.
Allow surfaces to cool before touching.
Carefully supervise young children when they are in
the room with fireplace. When using the hand-held
remoteaccessory(Remote-ReadyModelsOnly),keep
selector switch in the OFF position to prevent chil-
dren from turning on burners with remote.
You must operate this fireplace with the fireplace
screenin place. Make sure fireplace screen is closed
before running fireplace.
TABLE OF CONTENTS
SAFETY INFORMATION ............................................................ 2
PRODUCT IDENTIFICATION ..................................................... 3
OPTIONAL REMOTE CONTROLACCESSORIES .................... 4
LOCAL CODES........................................................................... 4
PRODUCT FEATURES .............................................................. 4
UNPACKING ............................................................................... 4
ASSEMBLY ................................................................................. 5
AIR FOR COMBUSTION AND VENTILATION ........................... 6
INSTALLATION ........................................................................... 8
OPERATING FIREPLACE ........................................................ 23
INSPECTING BURNERS.......................................................... 28
SAFETY INFORMATION
DANGER: Carbon monoxide poisoning may lead
to death!
Carbon Monoxide Poisoning: Early signs of carbon monoxide
poisoning resemble the flu, with headaches, dizziness, or nausea.
Ifyouhavethesesigns,thefireplacemaynotbeworkingproperly.
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
helpsyoudetectagasleak.However,theodoraddedtothegascan
fade. 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.
WARNINGS
IMPORTANT: Read this owner’s manual carefully and
completely before trying to assemble, operate, or ser-
vice this fireplace. Improper use of this fireplace can
cause serious injury or death from burns, fire, explo-
sion,electricalshock,andcarbonmonoxidepoisoning.
WARNING: Any change to this fireplace or its
controls can be dangerous.
TABLE OF CONTENTS
SAFETY INFORMATION
CLEANING AND MAINTENANCE ............................................ 29
WIRING DIAGRAM ................................................................... 29
TROUBLESHOOTING .............................................................. 30
SPECIFICATIONS .................................................................... 33
REPLACEMENT PARTS .......................................................... 33
SERVICE HINTS....................................................................... 33
TECHNICAL SERVICE ............................................................. 33
ILLUSTRATED PARTS BREAKDOWNAND PARTS LIST ....... 34
ACCESSORIES ........................................................................ 38
OWNER'S REGISTRATION FORM .......................................... 41
WARRANTY INFORMATION...................................... Back Cover
WARNING:Thisproductcontainsand/orgenerates
chemicals known to the State of California to cause
cancer or birth defects, or other reproductive harm.

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3
SAFETY INFORMATION
Continued
SAFETY INFORMATION
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.
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. Remote-
Ready Models shall not be installed in a bedroom.
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,orrock wool. Using theseaddeditems can cause soot-
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 preventthe creation ofsoot, follow theinstructionsin Clean-
ing and Maintenance, page 29.
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 Depletion Sensing (ODS) safety
shutoffsystem.The ODSshuts down thefireplace if notenough
fresh air is available. See Air for Combustion and Ventilation,
pages 6 through 8. If fireplace keeps shutting off, see Trouble-
shooting, pages 30 through 32.
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.
PRODUCT IDENTIFICATION
15. Turnoffand unplugfireplace and letcool beforeservicing. 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.
19. Provide adequate clearances around air openings.
Ignitor Button
Screen
Fireplace
Cabinet
Log
Control
Knob
Figure 1 - Vent-Free Compact Classic Hearth®Fireplace
ON
OFF
REMOTE
Screen
Fireplace
Cabinet
Logs
Ignitor
Button
Remote
Control
(Optional)
Selector Switch
(Optional) Control
Knob
Keeptheappliance area clear and free fromcombus-
tiblematerials,gasoline,andotherflammablevapors
and liquids.

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LOCAL CODES
Install and use fireplace 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*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
OPTIONAL REMOTE CONTROL ACCESSORIES
LOCAL CODES
PRODUCT FEATURES
UNPACKING
OPTIONAL REMOTE
CONTROL ACCESSORIES
(For Remote-Ready Models Only)
There are four optional remote controls that can be purchased
separately for Remote-Ready Models only:
• wall switch • hand-held ON/OFF remote
• wall thermostat • hand-held thermostat remote
See Accessories, pages 38 and 39.
PRODUCT FEATURES
SAFETY PILOT
This fireplace has a pilot with an Oxygen Depletion Sensing (ODS)
safetyshutoffsystem.TheODS/pilotisarequiredfeatureforvent-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 FOR
THERMOSTAT-CONTROLLED MODELS
Thermostat-Controlled models have a thermostat sensing bulb and
acontrolvalve.Thethermostatwillautomaticallymodulatetheheat
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). A decal 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. Remove all protective packaging applied to fireplace for
shipment.
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

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ASSEMBLY
Assembling Fireplace
ASSEMBLY
ASSEMBLING FIREPLACE
Tools Required:
• Phillips screwdriver
• 5/16" hex wrench
• slotted screwdriver
• scissors
1. Remove two screws that hold fireplace screen in place for ship-
ping. These screws are located near top of screen. Discard
screws. Lift fireplace screen up and pull out to remove. 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 Accessories, pages 38 and
39. Install optional blower now. Follow installation instruc-
tions provided with blower. See page 12 for Remote-Ready
Models or page 14 for Thermostat-Controlled Models.
Figure 3 - Removing Screen
WARNING: Always have branch support and
screen in place before operating fireplace. This pre-
vents excessive temperatures on fireplace surfaces.
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.
Screen
Burner Support With
Log Locator Tabs
Branch
Support
Shoulder
Screw
Figure 4 - Assembling Hood
Hood Tab
4. Locate four black phillips sheet metal screws from the hard-
ware packet.
5. Rotate hood as shown in Figure 4. Make sure hood tabs
point toward fireplace.
6. Insert hood tabs between baffle and louvers (see Figure 4).
7. Gently rotate hood to upright position. Make sure hood tabs
are behind louvers and hood is resting on firebox top (see
Figure 4).
8. Align screw holes on hood with screw holes on firebox top.
9. Insert screws as shown in Figure 4. Tighten screws firmly.
Sheet Metal Screws
Louver
Baffle
Firebox Top
Hood
Hood Tabs

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AIR FOR COMBUSTION AND VENTILATION
Providing Adequate Ventilation
Determining Fresh-Air Flow for Fireplace Location
AIR FOR COMBUSTION AND
VENTILATION
Today’s homes are built more energy efficient than ever. New mate-
rials,increased insulation, andnew construction methodshelp reduce
heat loss in homes. Home owners weather strip and caulk around
windowsanddoorstokeepthecoldairoutandthewarmairin.During
heatingmonths,homeownerswanttheirhomesasairtightaspossible.
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.
WARNING:Thisfireplaceshallnotbeinstalledin
a confined space or unusually tight construction
unless provisions are provided for adequate com-
bustion and ventilation air. Read the following in-
structions to insure proper fresh air for this and
other fuel-burning appliances in your home.
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 6 through 8 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 ceilingsexposedtothe outside 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 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,betweenwall-ceilingjoints,between
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 Outdoors , page 8 .
Ifyourhome does not meet allofthethree criteria above,
proceed to Determining Fresh-Air Flow For Fireplace
Location, below.
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,areconsidered apartoftheunconfined space.
* Adjoining rooms are communicating only if there are doorless
passageways or ventilation grills between them.
DETERMINING FRESH-AIR FLOW FOR
FIREPLACE LOCATION
Determining if You Have a Confined or
Unconfined Space
Usethisworksheettodetermineifyouhave a confined or unconfined space.
Space:Includestheroominwhichyouwillinstallfireplaceplusanyadjoining
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 16 ft. (length) x 14 ft. (width) x 8 ft. (ceiling
height) = 1792 cu. ft. (volume of space)
Ifadditionalventilationtoadjoiningroomissupplied with grills or open-
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: 1792 cu. ft. (volume of space) x 20 = 35,840 (maximum
Btu/Hr the space can support)

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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. Direct-vent draws com-
bustion 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 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: 35,840 Btu/Hr (maximum the space can support)
40,000 Btu/Hr (actual amount of Btu/Hr used)
Thespace in the aboveexampleis a confined spacebecausethe actual Btu/
Hrusedis morethanthemaximum Btu/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 grillsbetweenrooms. SeeVentilationAir From
Inside Building.
B. Vent room directly to the outdoors. See Ventilation Air From Out-
doors, page 8.
C. Install a lower Btu/Hr fireplace, if lower Btu/Hr size makes room
unconfined.
IftheactualBtu/Hrusedislessthanthemaximum Btu/Hr the space can support,
thespaceisanunconfinedspace.Youwillneednoadditionalfreshairventilation.
AIR FOR COMBUSTION AND
VENTILATION
Continued
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.
Figure 5 - Ventilation Air from Inside Building
AIR FOR COMBUSTION AND VENTILATION
Determining Fresh-Air Flow for Fireplace Location (Cont.)
Ventilation Air
30,000
10,000
40,000
WARNING: If the area in which the fireplace may
beoperatedis smaller thanthatdefinedasanuncon-
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 .
Or
Remove
Door into
Adjoining
Room,
Option 3
Ventilation Grills
Into Adjoining Room,
Option 2
12"
12"
Ventilation
Grills
into Adjoining
Room,
Option 1

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Figure 6 - Ventilation Air from Outdoors
Outlet
Air Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
Ventilation Air From Outdoors
Provideextrafreshairbyusingventilationgrillsorducts.Youmust
provide two permanent openings: one within 12" of the ceiling and
one within 12" of the floor. Connect these items directly to the
outdoorsorspacesopentotheoutdoors.Thesespacesincludeattics
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.
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.
AIR FOR COMBUSTION AND
VENTILATION
Continued
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.
INSTALLATION
IMPORTANT: Vent-freefireplacesadd moisture to theair.Although
this is beneficial, installing fireplace in rooms without enough ventila-
tionairmaycausemildewtoformfromtoomuchmoisture.SeeAirfor
Combustion and Ventilation, pages 6 through 8.
Note: Your fireplace is designed to be used in zero clearance
installations.Wallorframingmaterialcanbeplaceddirectlyagainst
any exterior surface on the rear, sides, or top of your fireplace,
except where standoff 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 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.
WARNING: A qualified service person must in-
stall fireplace. Follow all local codes.
WARNING: Never install the fireplace
•in 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
NOTICE:This heaterisintended foruseassupplemen-
tal 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
throughout the house. Intheevent of a power outage,
you can use this heater as your primary heat source.
WARNING: Never install the Remote-Ready Mod-
elsin this manual ina bedroom. Any heatingproduct
with a Btu/hr rating over 10,000 cannot be used in a
bedroom.
AIR FOR COMBUSTION AND VENTILATION INSTALLATION
Ventilation Air (Cont.)
INSTALLATION

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FIREPLACE CLEARANCES
WARNING: Maintain the minimum clearances
shown in Figure 7. If you can, provide greater clear-
ances from floor, ceiling, and joining wall.
NOTICE: If you install the fireplace in a bedroom
(Thermostat-ControlledModelsonly),some building
codes require that the fireplace/mantel system be
secured to (or within) a wall. You can position fire-
placeinanoptionalcabinetorcornermantel.Youcan
also recess fireplace into the wall.
INSTALLATION
Continued
Use the dimensions shown for rough openings to create the easiest
installation (see Built-In Fireplace Installation, page 10).
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.
INSTALLATION ITEMS
Before installing fireplace, make sure you have the items listed
below.
• externalregulator (suppliedby installer, forpropane/LPunitsonly)
• 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, pages 38 and 39.
Note: If desired, purchase a four-sided brass trim kit for built-in
installations. See Accessories, pages 38 and 39.
If your fireplace is to be used with an optional mantel, the
installationinstructionsincluded with your mantel showsan CSA
approved method of attaching the fireplace/mantel system to a
wall. IMPORTANT: Only use optional cabinet or corner mantels
specified in this manual. Purchase the optional mantel from your
dealer (see Accessories, pages 38 and 39).
Ifyour fireplaceis to berecessed intothe wall,seeBuilt-InFireplace
Installation on page 10 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.
•locatefireplacewheremovingvehiclewillnothitit.
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,pages38 and 39.Ifplanning to use blower,follow instructions
provided with blower for power source.
Minimum Clearances For Side Combustible
Material, Side Wall, and Ceiling
A. Clearances from the side of the fireplace cabinet to any com-
bustible material and wall should follow diagram in Figure 7.
Example: The face of a mantel, bookshelf, etc. is made of
combustible material and protrudes 3 1/2" from the wall. This
combustible material must be 4" from the side of the fireplace
opening (see Figure 7).
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 11 on page 11.
Figure 7 - Minimum Clearance for Combustible to Wall
*Minimum 16 inches from Side Wall
*
Example
INSTALLATION
Check Gas Type
Installation Items
Fireplace Clearances
MINIMUM CLEARANCE TO
COMBUSTIBLE MATERIALS
Top Left and Bottom
Right Sides and Rear
36" 6" 0"

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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 8 for
the rough opening. If installing in a corner, use dimensions
shown in Figure 9 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 fireplace for future blower installa-
tion (see Accessories, pages 38 and 39). Use only approved
three-wire electrical wiring.
BUILT-IN FIREPLACE INSTALLATION
Built-in installation of this fireplace involves installing fireplace
into a framed-in enclosure. This makes the front of fireplace flush
with wall. An optional brass trim kit accessory is available (see
Accessories, pages 38 and 39). Brass trim will extend past sides of
fireplaceapproximately1/2inch.Thiswillcovertheroughedgesof
the wall opening. If installing a built-in mantel above the fireplace,
youmustfollowtheclearancesshowninFigure11,page11.Follow
the instructions below to install the fireplace in this manner.
Note: Aqualifiedinstallershouldmakeall electricalconnections.
3. Install gaspiping to fireplacelocation.This installation 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 youhave notassembled firebox,follow instructionsonpage 5.
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 Fireplace to Gas Supply, page 18.
7. Bend four nailing flanges on outer casing with pliers (see
Figure 10).
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 19.
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
suchas wallboard,gypsumboard,sheet rock,drywall, plywood,etc.
may be butted up next to the sides and top edge of the firebox.
Combustiblematerials should neveroverlap thefireboxfront facing.
INSTALLATION
Continued
26
7
/ 8 "
26
7
/ 8 "
3/4" Off
The Floor
Minimum
10
1
/ 2 "
Figure 9 - Rough Opening for Installing in Corner
Figure 8 - Rough Opening for Installing in Wall
365 / 8"257
/ 8"
513
/ 4"
267
/ 8"
Figure 10 - Attaching Fireplace to Wall Studs
WARNING: If pre-wiring,do not connectwiring to
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.
Nailing
Flanges
Nails or
Wood
Screws
Wall Studs
INSTALLATION
Built-In Fireplace Installation

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11
INSTALLATION
Continued
Mantel Clearances for Built-In Installation
Ifplacing mantel abovebuilt-in fireplace, youmust meet minimum
clearance between mantel shelf and top of fireplace opening.
NOTICE:Surfacetemperaturesof 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.
Followallminimumclearancesshowninthismanual.
Figure 11 - Minimum Mantel Clearances for Built-In Installation
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.
OPTIONAL MANTEL INSTALLATION
Note: Refer to instructions provided with the mantel for assembly
instructions.Refer to thefollowinginstructions for systeminstalla-
tion. Refer to instructions on page 5 for fireplace assembly. Blower
accessory should be installed if it is being used (see Installing
Blower Accessory GA3450T, pages 12 through 16).
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 12.
5. Firmly snap brass trim kit on shoulder screws. Shoulder screws
are located on fireplace cabinet (see Figure 12).
6. Align brass trim kit for flush fit around opening.
7. Use two 3" wood screws provided and attach fireplace base to
wooden base (see Figure 12).
8. Place base assembly next to wall at installation location.
9. Remove brass trim kit and mantel. Be careful not to damage
wall or mantel.
Figure 12 - Attaching Brass Trim to Fireplace
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
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:Donotallownoncombustiblematerials
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.
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
INSTALLATION
Built-In Fireplace Installation (Cont.)
Optional Mantel Installation

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10. Attach wood base to floor with two 1 3/4" black screws pro-
vided(see Figure 13). Ifthe floor is concreteuse anchor method
(see Attaching Wood Base to Solid Floor, page 17).
11. Install gas line. See Connecting To Gas Supply, pages 17 and 18.
12. Check for leaks. See Checking Gas Connections, page 19.
13. Place mantel around fireplace. Be careful not to damage wall
or mantel.
14. Place brass trim kit on the shoulder screws located on the side
and top of the fireplace. Firmly snap the brass trim over the
shoulder screws on fireplace (see Figure 12, page 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 brass louvers (see Figure 12, page 11).
16. Reinstall top brass louvers.
INSTALLATION
Continued
Figure 13 - Attaching Wood Base to Floor
1 3/4" Screw
Wood Base
Assembling Brass Trim (Brass trim shipped with
mantel)
1. Remove packaging from three remaining pieces of brass 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 14.
4. Slide one end of adjusting plate/shim in slot on mitered edge
of top brass trim (see Figure 14).
5. Slide other end of adjusting plate/shim in slot on mitered edge
of side brass trim (see Figure 14).
6. While firmly holding edges of brass trim together, tighten both
set screws on the adjusting plate with slotted screwdriver.
7. Repeat steps 1 through 6 for other corner.
8. Set brass assembly aside for later installation.
Figure 14 - Assembling Brass Trim
Side Brass Trim
Top Brass Trim
Mitered Edge
Shim
Set
Screws
Adjusting
Plate Slot
Figure 15 - Removing Upper Louver Assembly and Branch
Support
Blower Bracket
Mounting Holes
INSTALLINGOPTIONALBLOWERACCESSORY
GA3450T IN REMOTE-READY MODELS
Removing Upper Louver Assembly and Branch
Support
To install the blower accessory, you must first remove the upper
louver assembly.
1. Lift screen off fireplace and remove log set if installed.
2. Remove 2 screws from each side of branch support and pull
branch support out (see Figure 15).
3. Remove 4 brass-plated screws from upper louver assembly
(see Figure 15). Save these screws.
4. Pull upperlouver assemblystraightout fromthe cabinet.Be care-
ful not to scratch the paint. Set louver assembly and screws aside.
5. Open lower louver door by swinging door down (see Figure 16,
page 13).
Upper Louver
Assembly
Branch Support
INSTALLATION
Optional Mantel Installation (Cont.)
Installing Blower Accessory GA3450T in Remote-Ready Models

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13
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 14.
1. Install snap bushings found in hardware kit into both holes in
rear of valve cover shield.
2. Make sure the wire harness is firmly connected to the termi-
nals on the blower bracket assembly.
3. Note the wire locations on back ofAUTO/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 16).
4. Carefully disconnect green and white wires at their insulated
connectors (see Figure 17).
Figure 16 - Installing Blower Bracket Assembly
CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper and dangerous operation.
CAUTION: Verify proper operation after servicing.
3
2
1
Wire
Harness
Blower Bracket
Assembly
Screw
Wire Harness
Switch
Baffle
Wiring Routing
Hole in Baffle
Switch
Plate Blue
Red
Valve Cover Shield
Snap
Bushing
Power Cord
INSTALLATION
Continued
Figure 18 - Installing Switch Plate to Valve Cover Shield
Figure 17 - 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
23
Auto
5. 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 assembly to
the outer casing with 4 #10 screws provided (see Figure 16).
6. Route the wire harness through the hole in left side of baffle.
Pull wire harness through lower opening on the side of the
valve cover shield. (see Figure 16).
7. Insert the 4wire harnesses into oneof theround holes inthe rear
of the valve cover shield and through the rectangular hole in the
front of shield (see Figure 16).
8. Reconnect red wire to switch position 3. Reconnect blue wire
to switch position 1. Reconnect green and white wires.
9. Install theswitchplate onthevalvecovershieldwith2 #10screws
provided (see Figure 18). Route power cord out of the cabinet by
inserting it through the bushing on the outer casing (see Figure
16). Plug fan kit into 120-Volt grounded power supply and test
operation.
Note: When switch is in the AUTO position, the fan
will start after the fireplace has run for a few moments. The fan
will continue to run for several moments after the fireplace has
been turned off. When switch is in the ON position, the fan will
rununtil turnedtoOFF. Reinstallupperlouverassembly(see Fig-
ure 15, page 12) and branch support. Close lower louver door.
Valve Cover
Shield
Switch
Plate Screw
Black
Blower
Mounting
Holes
Lower Louver Door
INSTALLATION
Installing Blower Accessory GA3450T in Remote-Ready Models (Cont.)

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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
23
Auto
Figure 20 - Installing Blower Bracket Assembly
Figure 19 - Wiring Diagram For Blower Accessory Built-In
Installation
INSTALLATION
Continued
Figure 21 - Removing Upper Louver Assembly
Upper Louver
Assembly
Brass Screws
INSTALLING OPTIONAL BLOWER
ACCESSORY GA3450T IN THERMOSTAT-
CONTROLLED MODELS
Removing Upper Louver Assembly
To install the blower accessory, you must first remove the upper
louver assembly.
1. Remove 4 screws from upper louver assembly (see Figure 21).
Save these screws.
2. Pull upperlouverassemblystraightout fromthe cabinet.Becare-
fulnot toscratch thepaint. Setlouver assemblyand screwsaside.
Blower Bracket
Mounting Holes
INSTALLATION
Installing Blower Accessory GA3450T in Remote-Ready Models (Cont.)
Installing Blower Accessory GA3450T in Thermostat-Controlled Models
For Built-In Installation
WARNING: A licensed electrician must connect the
wiring harness to electrical supply following all local
codes.Electricianmustprovideaclampontheboxcover
tosecurethewiring.Wiringshouldberoutedthroughthe
bushing in the hole on the outer casing of fireplace.
1. Install asnap bushing foundin hardwarekitinto oneof the holes
on rear of valve cover shield. The other hole is for a strain relief
clamp (not supplied) to secure incoming electrical supply.
2. Follow steps 2 through 6 in Installing BlowerAccessory, page 13.
3. A licensed electrician must follow the wiring diagram to con-
nect incoming electrical supply to fan kit wiring harness (see
Figure 19).
4. Plug power cord to the outlet receptacle (not provided) as shown
in Figure 20. w in power cord and tie it up with the plastic wire
strap (see Figure 20). Set the cable bundle between the burner
bracket and outer casing, away from the burner.
Blower Bracket
Assembly
Screw Wire Harness
Plastic Wire Strap
Wire Harness
Switch
Plate
Switch
Clamp
Connector
(not
included)
Blue
Red
Outlet
Receptacle
(not
included)
Power Cord
Lower Louver Door
Black
5. Test to make sure the blower is working properly.
6. Reinstall upper louver assembly (see Figure 15, page 12) and
close lower louver.
Extension Cord
Use extension cord if needed. The cord must have a three-prong,
groundingplugandathree-holereceptacle.Makesurecordisingood
shape. It must be heavy enough to carry the current needed. An
undersized 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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15
1
2
Remove
Screw Valve Cover
Shield
Shoulder
Screw
Removing Valve Cover Shield
1. Open bottom louver assembly by swinging the assembly down
(see Figure 22).
2. Using short Phillips screwdriver, remove the screw under the
center of the branch support. Rotate valve cover shield clock-
wise and slide out.
IMPORTANT: Do not remove shoulder screw on the left side
of valve cover shield. Slide the valve cover shield off of the
shoulder screw (see Figure 22).
Note: Ifyou do nothave a shortPhillips screwdriver, thescreen,
logset, and branch support must be removed so a longer screw-
driver may be used. See Removing Upper Louver Assembly
and Branch Support, page 12.
Figure 22 - Removing Valve Cover Shield
Branch Support
Snap Bushings Bottom Louver Assembly
INSTALLATION
Continued
Installing Blower Assembly
CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper and dangerous operation.
CAUTION: Verify proper operation after servicing.
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 on page 14.
1. Install snap bushings found in hardware kit into both holes in
rear of valve cover shield.
2. Make sure the wire harness is firmly connected to the terminals
on the blower bracket assembly.
Figure 23 - Installing Blower Bracket Assembly
3
2
1
Wire
Harness
Valve Cover Shield Box Cover
Wire Harness
Switch
Plate Blue
Power
Cord
Red
Switch
Wiring Routing
Hole in Baffle
Blower Bracket
Assembly
Screw Baffle
3. 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 23).
4. Carefully disconnect green and white wires at their insulated
connectors (see Figure 24).
5. 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 assembly to
the outer casing with 4 #10 screws provided (see Figure 23).
6. Route the wire harness through the hole in left side of baffle.
Pull wire harness through lower opening above where the
valve shield was removed. (see Figure 23).
Black
Blower
Mounting
Holes
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
23
Auto
Figure 24 - Wiring Diagram For Blower Accessory Standard
Installation
INSTALLATION
Installing Blower Accessory GA3450T in Thermostat-Controlled Models (Cont.)

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7. Insert the 4 wire harness into one of the round holes in the rear
of the valve cover shield and through the rectangular hole in
the front of shield (see Figure 23, page 15).
8. Reconnect red wire to switch position 3. Reconnect blue wire
to switch position 1. Reconnect green and white wires.
9. Install the switch plate on the valve cover shield with 2 #10
screws provided (see Figure 25). Reinstall the valve cover
shield. Route power cord out of the cabinet by inserting it
through the bushing on the outer casing (see Figure 23, page
15). Plug fan kit into 120-Volt grounded power supply and test
operation.
Note: When switch is in the AUTO position, the
fan will start after the fireplace has run for a few moments.
The fan will continue 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
assembly and hood if previously removed, (see Figure 21, page
14). Close lower louver door.
INSTALLATION
Continued
Figure 25- Installing Switch Plate to Valve Cover Shield
Switch
Plate Screw
Valve Cover
Shield
For Built-In Installation
WARNING: A licensed electrician must connect
the wiring harness to electrical supply following all
localcodes.Electricianmustprovideaclamponthe
box cover to secure the wiring. Wiring should be
routed through the bushing in the hole on the outer
casing of heater.
Follow instructions Removing Valve Cover Shield (page 15), then
1. Install asnap bushing foundin hardwarekitinto oneof the holes
on rear of valve cover shield. The other hole is for a strain relief
clamp (not supplied) to secure incoming electrical supply.
2. Follow steps2through 6in Installing BlowerAssembly,page 15.
Also remove black wire from middle switch terminal 2.
3. Remove black plastic strain relief and power cord from switch
plate. The power cord supplied will not be used in built-in in-
stallations. Pop in the plastic snap bushing found in hardware
kit into the hole left by supply cord/strain relief.
4. A licensed electrician must follow the wiring diagram to con-
nect incoming electrical supply to fan kit wiring harness (see
Figure 26).
5. Plug power cord to the outlet receptacle (not provided) as shown
inFigure 27.Windtheextracableinpower cordand tieit upwith
the plastic wire strap (see Figure 27). Set the cable bundle be-
tween the burner bracket and outer casing, away from the burner.
6. Reinstall valve cover shield.
7. Test to make sure the blower is working properly.
8. Reinstallupper louverassembly andhood ifpreviouslyremoved,
(see Figure 21, page 14). Close lower louver door.
3
2
1
Figure 27 - Installing Blower Bracket Assembly
Blower Bracket
Assembly
Screw
Wire
Harness
Power
Cord
Valve Cover
Shield Box
Cover
Wire
Harness
Switch
Plate Switch
Clamp Connector
(not included)
Blue
Plastic
Wire Strap
Figure 26 - Wiring Diagram For Blower Accessory Built-In
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
23
Auto
Outlet
Receptacle
Red
INSTALLATION
Installing Blower Accessory GA3450T in Thermostat-Controlled Models (Cont.)
Black

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17
Extension Cord
Use extension cord if needed. The cord must have a three-prong,
groundingplugandathree-holereceptacle.Makesurecordisingood
shape. It must be heavy enough to carry the current needed. An
undersized 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.
INSTALLATION
Continued
ATTACHING WOOD BASE TO SOLID FLOOR
For attaching base to solid floors (concrete or masonry)
Note: Flooranchorsandmountingscrewsareinhardwarepackage.
The hardware package is provided with fireplace.
1. Drill holes at marked locations using 5/16" drill bit. For solid
floors (concrete or masonry), drill at least 1" deep.
2. Fold floor anchor as shown in Figure 28.
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.
Figure 28 - Folding Anchor
Propane/LP
Supply Tank
External Regulator
CONNECTING TO GAS SUPPLY
Figure 29 - External Regulator With Vent Pointing Down
Vent Pointing Down
WARNING: A qualified service person must con-
nect fireplace to gas supply. Follow all local codes.
CAUTION: Never connect propane/LP fireplace
directly to the propane/LP supply. This fireplace
requires an external regulator (not supplied). Install
the external regulator between the fireplace and pro-
pane/LP supply.
For propane/LP units,the installer must supply an external regula-
tor.Theexternalregulatorwillreduceincominggaspressure.You
mustreduceincominggaspressuretobetween11and14 inchesof
water. If you do not reduce incoming gas pressure, fireplace
regulator damage could occur. Install external regulator with the
ventpointing downas shownin Figure29.Pointingthe ventdown
protects it from freezing rain or sleet.
WARNING:Thisappliancerequiresa45°maleflare
fitting5/8"-18 UNF (UnifiedNational Fine Thread)inlet
connection and the flexible gas line provided.
WARNING:Neverconnectnaturalgasfireplaceto
private (non-utility) gas wells. This gas is commonly
known as wellhead gas.
INSTALLATION
Installing Blower Accessory GA3450T in Thermostat-Controlled Models (Cont.)
Attaching Wood Base to Solid Floor
Connecting to Gas Supply
IMPORTANT :For natural gas, check gas line pressure before
connecting fireplace to gas line. Gas line pressure must be no greater
than14inchesof water.Ifgasline pressureishigher,heater regulator
damage could occur.

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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 30).
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.
Checkyourbuildingcodesforanyspecialrequirementsforlocating
equipment shutoff valve to fireplaces.
Apply pipe joint sealant lightly to male NPT threads. This will
prevent excess sealant from going into pipe. Excess sealant in pipe
could result in clogged fireplace valves.
WARNING:Usepipejoint sealant that is resistant
to liquid petroleum (LP) gas.
We recommend that you install a sediment trap in supply line as
showninFigure30.Locatesedimenttrapwhereitiswithinreachfor
cleaning. Install in piping system between fuel supply and heater.
Locatesedimenttrap where trapped matteris not likely tofreeze. 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.
NOTICE: Most building codes do not permit con-
cealed gas connections. A flexible gas line is pro-
vided to allow accessibility from the fireplace (see
Figure31).The flexible gas supply line connectionto
the equipment shutoff valve should be accessible.
CONNECTING FIREPLACE TO GAS SUPPLY
Installation Items Needed
• Phillips screwdriver
• sealant (resistant to propane/LP gas, not provided)
1. Remove screws that attach branch support to fireplace (see
Figure 31). Carefully lift up branch support and remove from
fireplace (see Figure 31).
Figure 31 - Removing Branch Support From Fireplace
(Thermostat-Controlled Model Shown)
Branch Support
Flexible Gas Line
INSTALLATION
Continued
INSTALLATION
Connecting To Gas Supply (Cont.)
Connecting Fireplace to Gas Supply
CAUTION:Useonlynew,blackironorsteelpipe.
Internally-tinned copper tubing may be used in cer-
tain areas. Check your local codes. Use pipe of 1/2"
or greater diameter to allow proper gas volume to
fireplace. If pipe is too small, undue loss of volume
will occur.
*PurchasetheoptionalCSAdesign-certifiedequipmentshutoffvalvefrom
your dealer. See Accessories, pages 38 and 39.
Figure 30 - 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

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19
INSTALLATION
Continued
INSTALLATION
Connecting Equipment shutoff Valve To Heater Control (Cont.)
Checking Gas Connections
2. Route flexible gas line, included, from fireplace control to
equipment shutoff valve through side or rear access holes in
outer casing.
3. Apply pipe joint sealant lightly to male threads of gas connec-
tor attached to flexible gas line/equipment shutoff valve (see
Figure 32).
Figure 32 - 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
WARNING: Test all gas piping and connections,
internal and external tounit, for leaks after installing
or servicing. Correct all leaks at once.
WARNING: Never use an open flame to check for
aleak.Applyanoncorrosiveleakdetectionfluidtoall
joints.Bubblesformingshowaleak.Correctallleaks
at once.
CAUTION:Make sure external regulator hasbeen
installed between propane/LP supply and fireplace.
See guidelines under Connecting to Gas Supply ,
pages 17 and 18.
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 sys-
tem. Pressures in excess of 1/2 psig will damage heater regulator.
2. Cap off open end of gas pipe where equipment shutoff valve
was connected.
3. Pressurizesupplypipingsystembyeitheropeningpropane/LPsup-
ply tank valve for propane/LP gas or opening main gas valve lo-
catedon orneargas meterfor naturalgas, orusingcompressed 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 sup-
ply. Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 33).
2. Pressurizesupplypipingsystembyeitheropeningpropane/LPsup-
ply tank valve for propane/LP gas or opening main gas valve lo-
catedon orneargas meterfor naturalgas, orusingcompressed air.
CHECKING GAS CONNECTIONS
Figure 33 - Equipment Shutoff Valve
ON
POSITION
OFF
POSITION
Open
Closed
Equipment
Shutoff Valve
CAUTION: Avoid damage to regulator. Hold gas
regulator with wrench when connecting it to gas
piping and/or fittings (Thermostat-Controlled Mod-
els Only).
CAUTION:Avoiddamagetogascontrol.Holdgas
controlwith wrenchwhenconnectingit togaspiping
and/or fittings (Remote-Ready Models Only).
4. Check all gas connections for leaks. See Checking Gas Con-
nections.
5. Replace branch support back into fireplace. Feed flexible gas
lineintofireplace baseareawhilereplacingbranchsupport.Make
sure the entire flexible gas line is in fireplace base area. Reat-
tach branch support to fireplace with screws removed in step 1.
➞
➞

107032-01J
For more information, visit www.desatech.com
For more information, visit www.desatech.com
20
INSTALLATION
Continued
Figure 34 - Checking Gas Joints (Propane/LP Only)
Propane/LP
Supply
Tank
Equipment
Shutoff Valve
Equipment
Shutoff Valve
Gas Meter
Figure 35 - Checking Gas Joints (Natural Gas Only)
INSTALLATION
Checking Gas Connections (Cont.)
Optional Wireless Hand-Held Remote Control Accessories [Remote-Ready Models Only]
3. Check all joints from gas meter to equipment shutoff valve for
natural gas or propane/LP supply to equipment shutoff valve
for propane/LP (see Figures 34 or 35). Apply noncorrosive
leak detection fluid to all joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Pressure Testing Fireplace Gas Connections
1. Open equipment shutoff valve (see Figure 33, page 19).
2. Open main gas valve located on or near gas meter for natural
gas or open propane/LP supply 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-ControlledModels),orto gascontrolvalve(Remote-
Ready Models) (see Figures 34 or 35). Apply noncorrosive leak
detection fluid to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light fireplace(seeOperatingFireplace,pages23 through 27).
Check all other internal joints for leaks.
7. Turn off fireplace (see To Turn Off Gas to Appliance, page 24
for Thermostat-Controlled Models or page 25 for Remote-
Ready Models).
OPTIONAL WIRELESS HAND-HELD REMOTE
CONTROL ACCESSORIES
Remote-Ready Models Only
(GHRCB Series & GHRCTB Series)
Installing Receiver
1. Remove screws.
2. Disconnect switch wires from the control valve.
3. Remove switch plate (see Figure 36). Discard switch plate
after removing. Save the screws.
4. Locate the battery clip mounted on the back of the receiver
(see Figure 37).
5. Slide 9-volt battery (not included) through the clip.
6. Attach the terminal wires to the battery (see Figure 37).
7. Connect wires as shown in Figure 38, page 21.
8. Install remote receiver unit onto fireplace base using the two
screws removed in step one (see Figure 38, page 21).
Figure 36 - Switch Plate and Wiring Harness
Figure 37 - Attaching Battery to Receiver
Battery Clip
9-Volt Battery
Receiver
Terminal
Wires
Screw
Switch Plate
Black
Wire
Red Wire
Gas Regulator or
Gas Control Valve
Gas Regulator or
Gas Control Valve