Desa Comfort Glow CGEFP33PR Quick start guide

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For more information, visit www.desatech.com
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 FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
Shown with optional cabinet mantel, hearth base, and trim accessories.
CGEFP33PR, CGEFP33NR, EFP33PR, AND EFP33NR
GAS FIREPLACE WITH TOTAL CONTROL SYSTEM (TCS)

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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 5 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
Product Identification .......................................... 4
Local Codes ........................................................ 5
Unpacking ........................................................... 5
Product Features ................................................ 5
Air For Combustion And Ventilation .................... 5
Installation ........................................................... 8
Operating Fireplace .......................................... 26
Inspecting Burners ............................................ 28
Cleaning and Maintenance ............................... 29
Troubleshooting ................................................. 30
Wiring Diagram ................................................. 33
Illustrated Parts Breakdown and Parts List ....... 34
Specifications .................................................... 38
Service Hints ..................................................... 38
Technical Service .............................................. 38
Replacement Parts ........................................... 38
Templates .......................................................... 39
Accessories ....................................................... 41

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108117-01K 3
SAFETY INFORMATION
WARNING: This product con-
tainsand/orgenerateschemicals
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 these gases. 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 heater or its controls can be
dangerous.
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.
WARNING: Do not use a
blower insert, heat exchanger
insert, or other accessory not
approved for use with this fire-
place.
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 fire-
place. 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,
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 and
hood in place. Make sure fire-
place screen and hood are in
place before running fireplace.
Keep the appliance area clear
and free from combustible ma-
terials, gasoline, and other flam-
mable vapors and liquids.

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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 (propane/LP units 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 bed-
room 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, 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. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 29.
8. Before using furniture polish, wax, carpet
cleaner, or similar products, turn heater off. If
heated, the vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.
9. This fireplace needs fresh air ventilation to
run properly. This fireplace has an Oxygen
Depletion Sensing (ODS) safety shutoff sys-
tem. The ODS shuts down the fireplace if not
enough fresh air is available. See Air for Com-
bustion and Ventilation, pages 5 through 7. If
fireplace keeps shutting off, see Troubleshoot-
ing, pages 30 through 33.
10. Do not run fireplace
• where flammable liquids or vapors are used
or stored
• under dusty conditions
11. Do not use this fireplace to cook food or burn
paper or other objects.
SAFETY INFORMATION
Continued
12. Do not use fireplace if any part has been ex-
posed to or under water. Immediately call a
qualified service technician to inspect the fire-
place and to replace any part of the control
system and any gas control which has been
under water.
13. Do not operate fireplace if any log is broken.
Do not operate fireplace if a log is chipped
(dime-sized or larger).
14. Turn fireplace off and let cool before servic-
ing. Only a qualified service person should
service and repair fireplace.
15. Operating fireplace above elevations of 4,500
feet could cause pilot outage.
16. To prevent performance problems with propane/
LP units, do not use propane/LP fuel tanks of
less than 100 lb. capacity (propane/LP units only).
17. Provide adequate clearances around air openings.
PRODUCT
IDENTIFICATION
Figure 2 - Fireplace (EFP33PR Shown)
Top Louver
Assembly
Firebox
Hood
Bottom Louver
Assembly
Screen
Assembly
Top Outer
Casing
Firebox Support
Blower
Assembly
(Optional)
Log Set
Wall Switch/
Plate
Piezo
Ignitor
Remote
Control
Manual
Override
Handle
Manual Ignition
Bypass Switch
Figure 1 - Fireplace Floor Assembly
(EFP33PR Shown)

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108117-01K 5
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
UNPACKING
CAUTION: Do not remove
the data plates attached to the
heater base assembly. The data
plates contain important war-
ranty and safety information.
1. With utility knife, cut the carton all the way
around above the staples on the bottom tray.
Lift the carton off the heater. Remove pack-
ing. Note: The hood is located in the packing
on the right hand side of the heater front. Lift
the heater off the bottom tray.
2. Locate two screws above top corners of the
fireplace screen. Remove and discard these
screws. Lift fireplace screen up and pull out
to remove.
3. Remove protective packaging applied to logs,
log base assembly, and fireplace.
4. Remove fireplace hood from carton insert.
5. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought fireplace.
PRODUCT FEATURES
OPERATION
This vent-free fireplace is clean burning. It requires
no outside venting. There is no heat loss out a vent
or up a chimney. Heat is generated by both realistic
flames and glowing embers. When used without
the optional blower, the fireplace requires no elec-
tricity making it ideal for emergency backup heat.
SAFETY DEVICE
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
heaters. The ODS/pilot system shuts off the fire-
place if there is not enough fresh air.
PIEZO IGNITION SYSTEM
This fireplace has a piezo ignitor. This system re-
quires no matches, batteries, or other sources to
light fireplace.
WIRELESS REMOTE CONTROL
This fireplace features an infrared wireless remote
control. This control system can be used to auto-
matically light the pilot and adjust the burner flame
height at the push of a button.
WIRED WALL-MOUNTED REMOTE
CONTROL
This fireplace features a two-button wall switch and
wall plate with glowing LED’s. The wall switch
performs the same functions as the wireless hand-
held remote control with the added feature of LED’s
for visual feedback of operation and status.
OPTIONAL BLOWER ASSEMBLY
ACCESSORY
This fireplace accepts an optional blower assem-
bly (not included). The GA3650T/GA3700T Se-
ries blower operates thermostatically and features
a variable speed control. The GA3700/GA3750
Series operates manually and also features a vari-
able speed control. The blower circulates heated
air from the fireplace into the room. Use of blower
is optional. See Accessories, page 41.
AIR FOR COMBUSTION
AND VENTILATION
WARNING: This fireplaceshall
notbeinstalledina confinedspace
or unusually tight construction
unless provisions are provided
foradequate combustionandven-
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.

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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 5 through 7 will help
you classify your space and provide adequate ven-
tilation.
Unusually Tight Construction
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 crite-
ria, 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,
column 2.
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 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 un-
confined space.
*Adjoining rooms are communicating only if there
are doorless passageways or ventilation grills be-
tween them.
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 20 ft. (length) x 18 ft.
(width) x 8 ft. (ceiling height) = 2880 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: 2880 cu. ft. (volume of space) x 20 =
57,600 (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.

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108117-01K 7
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: 57,600 Btu/Hr (maximum the space
can support)
73,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the above example is a confined space
because the actual Btu/Hr used is more than the maxi-
mum Btu/Hr the space can support. You must pro-
vide additional 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 uncon-
fined space. You will need no additional fresh air ven-
tilation.
WARNING: If the area in
which the fireplace may be op-
erated is smaller than that de-
fined as an unconfined space or
if the building is of unusually
tight construction, provide ad-
equate combustion and ventila-
tion air by one of the methods
described in the National Fuel
Gas Code, ANSI Z223.1/NFPA
54 Section 5.3 or applicable lo-
cal codes .
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining un-
confined space. When ventilating to an adjoining
unconfined space, you must provide two perma-
nent 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 3).
You can also remove door into adjoining room (see
option 3, Figure 3). 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
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.
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.
40,000
+ 33,000
= 73,000
AIR FOR COMBUSTION
AND VENTILATION
Continued
Figure 4 - Ventilation Air from Outdoors
(EFP33PR Shown)
Figure 3 - Ventilation Air from Inside
Building (EFP33PR Shown)
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"

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8
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 primary heat source.
WARNING: A qualified ser-
vice person must install fire-
place. Follow all local codes.
WARNING: Never install the
fireplace
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objects are less than 42 inches
from the front, top, or sides of
the fireplace
• 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-
ing fireplace next to vinyl or cloth
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.
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 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 Fire-
place Installation, pages 21 and 22).
IMPORTANT: Vent-free heaters 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, pages 5
through 7.
IMPORTANT: Make sure the fireplace is level. If
fireplace is not level, log set will not work properly.
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.
ELECTRICAL HOOKUP
This fireplace normally operates under 120 VAC/
60 Hz line voltage. The electrical cord supplied
with your fireplace is five feet in length. You must
locate fireplace within reach of a 120 volt grounded
electrical outlet. If not, you must install an electri-
cal outlet within reach of the fireplace power cord.
The GA3555 outlet accessory may be used for
built-in applications.
INSTALLATION CLEARANCES
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
floor, ceiling, and adjoining wall.
Carefully follow the instructions below. This will
ensure safe installation.
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 5, page 9.
Example: The face of a mantel, bookshelf, etc.
is made of combustible material and protrudes
3 1/2" from the wall. This combustible mate-
rial must be 4" from the side of the fireplace
cabinet (see Figure 5, page 9).

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108117-01K 9
B. Clearances from the top of the fireplace open-
ing to the ceiling should not be less than 42
inches.
INSTALLATION
Continued
1. Remove fireplace screen. 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.
2. If logs are installed, carefully remove the logs
and set aside, noting the properly mounted
location of each.
3. Remove screws that attach fireplace floor as-
sembly to fireplace. Open lower louver door.
Carefully lift up fireplace floor assembly and
remove from fireplace, taking care to pull flex-
ible gas line through the access holes (see Fig-
ure 6). Note: Be careful of all wires on under-
side of log base.
CAUTION: Do not pick up
fireplace floor assembly by burn-
ers. This could damage burn-
ers. Only handle base by grates.
Figure 5 - Minimum Clearance for
Combustible to Wall
*Minimum 16 inches from Side Wall
*
Example
INSTALLATION SEQUENCE
After unpacking fireplace (see Unpacking, page
5), we suggest that you install your fireplace sys-
tem in the following sequence:
1. Removal of fireplace floor assembly (re-
quired)
2. Electrical connections for power cord (re-
quired)
3. Relocating wall switch (optional)
4. Installing blower accessory (optional)
5. Connecting fireplace to gas supply (required)
6. Checking gas connections (required)
7. Firebox installation, conventional or built-in
(required)
8. Installing brass perimeter trim (optional)
9. Installing fireplace hood (required)
10. Installing logs (required)
11. Installing fireplace screen (required)
Use the following instructions to complete each step.
REMOVING FIREPLACE SCREEN
AND FLOOR ASSEMBLY
NOTICE: Shutoff gas supply and
disconnect heater from gas sup-
ply if installing blower into pre-
viously installed fireplace. Con-
tact a qualified service person
to do this.
Figure 6 - Removing Fireplace Floor
Assembly
Screws
Fireplace Floor Assembly
Flexible Gas Line
ELECTRICAL CONNECTIONS FOR
POWER CORD
This fireplace operates on 120 VAC, 60 Hz power.
An electrical power cord is supplied with this unit.
For Mantel Installation
1. Determine from which side of the fireplace
the power cord will exit. Locate the 1.5" di-
ameter hole near the center of floor support
bracket on appropriate side of lower cavity
(see Figure 7).
Figure 7 - Routing Power Cord
Power
Cord
Bushings
Hole in Floor Support Bracket
Hole in
Outer
Casing

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10
2. Locate power cord. Remove wire tie or tape
holding plug end of power cord.
3. Power cord has 2 plastic hole bushings
threaded onto it. Route cord's 3-prong plug
through the 1.5" diameter hole in appropriate
floor support bracket.
4. Push first plastic bushing completely through
hole. Squeeze bushing as needed to do this.
5. Install the second plastic bushing into the hole
in the floor support bracket by snapping into
place.
6. Route the 3-prong plug through the 1.5" hole
in fireplace outer casing.
7. Install the first plastic bushing into this hole
by snapping into place.
8. After you have connected to gas supply and
checked your gas connections (see pages 17
through 19), plug power cord into any conve-
nient 3-prong grounded wall receptacle near
fireplace.
For Recessed Installation
If an outlet is not installed in fireplace, install
model GA3555 - Outlet Kit with Cover. This kit
will supply a convenient 3-prong grounded elec-
trical outlet for power. Refer to installation manual
provided with this optional accessory for instruc-
tions on wiring.
Note: A qualified installer must
make all electrical connections.
RELOCATING WALL SWITCH
Note: The decorative wall switch plate supplied
is white. The wall switch plate may be painted to
match your decor.
The push-button switch and decorative wall plate
assembly supplied with your fireplace is pre-
mounted at the factory in the lower cavity of the
fireplace. You may relocate this switch/plate as-
sembly to a more convenient location such as the
side of your mantel or directly onto the wall near
the fireplace. To mount the wall switch/plate as-
sembly, you must first cut openings in the mantel
or wall where the switch will be located.
Note: If you choose to relocate the wall switch,
do so before final installation into a mantel or re-
cessing into a wall. If you are installing an op-
tional blower accessory, install it at the same time
you relocate the wall switch.
INSTALLATION
Continued
CAUTION: The wall switch
must never be mounted directly
above the fireplace where heat
may damage it. If you relocate
wall switch from lower fireplace
cavity, it must be mounted ei-
ther on side wall of mantel or on
wall to side of fireplace.
For Recessed Installation
If fireplace is to be recessed into a wall (see Built-
In Fireplace Installation, pages 21 and 22), we
recommend mounting wall switch to left side of
fireplace. The wall switch should be mounted ap-
proximately 12" from left edge of fireplace, and
less than 60" from the floor. IMPORTANT: Do
not locate wall switch directly in front of wall stud
- there must be room behind wall board for wires
from switch. If you choose to locate wall switch
to right side of fireplace, the length of the cord
restricts you to less than 6" from right edge of fire-
place and less than 48" from floor.
For Mantel Installation
If fireplace is to be installed into a mantel, (see
Conventional Fireplace Installation, page 20) the
wall switch may be mounted on either side of the
mantel, facing to the side. Do not locate wall switch
anywhere on the front face of the mantel.
CAUTION: Be careful of gas
linesandwiringwhenmovingfloor.
1. Determine the new location for the wall
switch. The wires attached to switch are six
feet long.
2. Remove 2 screws securing plastic wall plate to
bracket in fireplace lower cavity. Save screws.
3. Remove wire tie holding coiled wire attached
to wall switch (see Figure 8).
4. Remove wall switch/plate assembly from
bracket.
Wire
Tie
Burner
Outlet
Tube
Firebox
Bottom
Figure 8 - Relocating Switch and Wall
Plate
Switch with
Wall Plate
Gas Control
Valve

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108117-01K 11
INSTALLATION
Continued
5. Carefully pass wall plate and cord through
large elongated hole in rear of either left or
right floor support bracket, depending on de-
sired location of switch. Pass wall plate and
cord through 1.5" diameter hole in side of fire-
place outer casing (see Figure 9).
6. Pull wall plate and cord from fireplace mak-
ing sure wall switch/plate assembly will reach
desired mounting location without straining
cord assembly.
If you are mounting wall switch to a wall, con-
tinue reading. If you are mounting your wall switch
to the side of the mantel, see page 12.
CAUTION: Do not apply ex-
cessive pull on cord.
Figure 9 - Routing Wall Switch/Plate
Through Fireplace for Relocation
Wall Switch/
Plate Assy
Hole in
Outer
Casing Hole in
Floor
Support
Bracket
Mounting Wall Switch to Wall for Recessed
Fireplace
7. Create three openings on wall according to Tem-
plate 1, page 39. This is best done by making a
pattern to work with on your wall. Carefully
cut page 41/42 from manual and tape paper
template vertically onto wall at preferred loca-
tion. Pierce the paper at the centers of the 2
holes with a nail or sharp pencil, leaving a mark
on the wall. Do the same at centers of the four
circles near the corners of the rectangle.
8. Remove paper template from wall.
9. Drill 3/8" holes at each mark.
10. Using a straight edge and pencil, connect the
outer edges of the 4 holes for the rectangle
(see Figure 10). This will give you cutting
lines for the rectangle you will cut in the wall.
11. Using a keyhole saw, hack saw blade, drill, file,
or other suitable tool, carefully cut out the rect-
angular opening. Note: The corners of the rect-
angle may be round. IMPORTANT: Do not ex-
ceed the size of the rectangle on template.
12. From inside the recessed opening for the fire-
place, carefully pass switch/plate assembly
through the rectangular opening to the out-
side of the wall.
13. Using wall anchors supplied in hardware pack-
age, fold wall anchor as shown in Figure 11.
14. Insert wall anchor, wings first, into hole. Tap
anchor flush to wall.
15. For thin walls (1/2" or less), insert red key into
wall anchor. Push red key to “pop” open an-
chor wings. See Figure 12. IMPORTANT: Do
not hammer key! For thick walls (over 1/2"
thick), do not pop open wings.
16. Position switch/plate assembly vertically over
wall openings with decal lettering upright (see
Figure 13).
17. Insert mounting screws, removed in step 2 of
Relocating Wall Switch on page 10, through
holes in wall plate and into wall anchors.
18. Tighten screws until wall plate is firmly at-
tached to wall. Do not overtighten.
Figure 11 - Folding
Anchor
Figure 10 - Using Template for Wall
Switch Installation
Template
from This
Manual
Make
Marks at
Centers
of Holes
Figure 12 - Popping
Open Anchor Wings
for Thin Walls
4 3/4"
3 3/4"
3/8"
3/16"
3/4"
3/8"
Diameter
2 Holes
Cutting
Lines
Tape
Screws
Wall Plate/
Switch
Opening in Wall
or Mantel Wall
Figure 13 - Securing Wall Switch

www.desatech.com 108117-01K
12
Mounting Wall Switch to Side of Mantel
7. Create three openings in the mantel wall ac-
cording to Template 2, page 39. This is best
done by making a pattern to work with on the
mantel. Carefully cut page 41/42 from manual
and tape paper template vertically onto man-
tel wall at preferred location. Pierce the paper
at the centers of the 2 holes with a nail or sharp
pencil, leaving a mark on the wall. Do the
same at centers of the four circles near the cor-
ners of the rectangle.
8. Remove paper template from mantel wall.
9. Drill 1/8" pilot holes at each mark for top and
bottom screw holes. Drill 3/8" holes at each
mark for centers of four circles near corners
of rectangle.
10. Using a straight edge and pencil, connect the
outer edges of the 4 holes for the rectangle
(see Figure 10, page 11). This will give you
cutting lines for the rectangle you will cut in
the mantel wall.
11. Using a keyhole saw, hack saw blade, drill, file,
or other suitable tool, carefully cut out the rect-
angular opening. Note: The corners of the rect-
angle may be round. IMPORTANT: Do not ex-
ceed the size of the rectangle on template.
12. Carefully pass switch/plate assembly through
rectangular opening from inside mantel (see
Figure 13, page 11).
13. Position switch/plate assembly vertically over
opening with decal lettering upright. Make
sure wires freely pass through wall without
binding. Align holes in wall plate with 1/8"
pilot holes in mantel wall.
14. Drive mounting screws, removed in step 2 of
Relocating Wall Switch on page 10, through wall
plate holes and into pilot holes in mantel wall.
15. Tighten screws until wall plate is firmly at-
tached to mantel. Do not overtighten.
INSTALLING VARIABLE SPEED
BLOWER ACCESSORY
NOTICE: Shut off gas supply
and disconnect heater from gas
supply if installing blower into
previously installed fireplace.
Contact a qualified service per-
son to do this.
INSTALLATION
Continued
1. If fireplace screen and floor are still installed,
see Removing Fireplace Screen and Floor
Assembly, page 9.
2. Attach the power cord to the blower motor by
firmly pushing the two female terminals at the
end of the power cord onto the two spade ter-
minals on the blower motor.
3. Attach green ground wire from power cord to
blower housing using screw provided (see Fig-
ure 14). Tighten screws securely.
4. Place the blower against lower rear wall of
firebox outer wrapper with the exhaust port
directed upward. Align the holes in top mount-
ing tabs of blower with holes in wall of wrap-
per (see Figure 14). Using 2 screws provided,
mount blower and tighten screws securely.
5. Be certain that all wire terminals are securely
attached to terminals on blower motor and that
the screw retaining the green ground wire is tight.
6. Place control knob provided on plastic con-
trol shaft of speed control.
7. Mount the speed control on the front leg of
the left floor support bracket using 2 screws
provided (see Figure 15).
Figure 14 - Mounting Blower to Firebox
Lower Rear
Wall of
Firebox
Blower
Top
Mounting
Tab
Exhaust
Port
Screw
Green Ground Wire
Screws
Figure 15 - Attaching Speed Control to
Firebox
Screws
Speed
Control
Control
Knob
Left Floor
Support
Bracket
Control
Shaft

www.desatech.com
108117-01K 13
Variable
FanSwitch
WhiteWhite
Black
Green
On
110/115
V.A.C.
Blower
Motor
Black
Black
Black
Off
INSTALLATION
Continued
8. Plug in blower power cord.
a. If your fireplace system is installed as a free-
standing unit with an accessory mantel, de-
termine whether the power cord will exit the
left side or the right side of the firebox. In-
stall 1 plastic bushing provided into the 1.5"
hole in the floor support bracket on the exit
side (see Figure 16). Install the second plas-
tic bushing provided into the 1.5" hole in the
outer casing through which the power cord
will exit. Route power cord through both
plastic bushings and plug the power cord into
a properly grounded 3-prong wall receptacle
near the firebox.
b. If your fireplace system installation is re-
cessed and if an outlet is not installed in
your fireplace, you must install the GA3555
Outlet kit with cover in your fireplace which
will supply a convenient 3-prong grounded
electrical outlet for your blower. Refer to the
installation manual provided with the model
GA3555 accessory for instructions on wir-
ing the duplex outlet.
Note: A qualified installer must make all
electrical connections.
9. Check to make sure that all electrical cords
are completely clear of the blower wheel and
that there are no other foreign objects in
blower wheel. Turn blower on and check for
operation. Turn blower off by rotating knob
fully counterclockwise before continuing.
CAUTION: Never touch the
blower wheel while in operation.
10. Peel off backing paper and stick supplied wir-
ing diagram decal near center of firebox bot-
tom (Figure 17).
11. If gas connections have been made and
checked, replace fireplace floor assembly.
Feed flexible gas supply line into fireplace
base area while replacing fireplace floor as-
sembly. Make sure the entire flexible gas line
is in fireplace base area.
IMPORTANT: Do not pick up fireplace floor
assembly by burners. This could damage burn-
ers. Only handle base by grates. Note: Be
careful of all wires and components on un-
derside of floor assembly.
Figure 16 - Installing Plastic Bushing for
Power Cord
Plastic
Bushing
Right Floor
Support Bracket
WARNING: Never attempt to service
heater while it is plugged in, operating, or
hot. Burns and electrical shock could result.
Only a qualified service person should ser-
vice or repair heater.
If any of the original wire as supplied with the appli-
ance must be replaced, it must be replaced with
105°C wire or it’s equivalent.
WARNING: Label all wires prior to discon-
nection when servicing controls.Wiring errors
can cause improper and dangerous operation.
Verify proper operation after servicing.
Variable
Fan Switch
WhiteWhite
Black
Green
On
110/115
V.A.C.
Blower
Motor
Black
Black Black
Off
101584-05
120 Vac. 60 Hz. . 78 Amps
DESA Heating Products, Bowling Green, KY
Figure 17 - Location of Wiring Diagram
Decal 3" from Blower
Wiring
Diagram

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14
12. Reattach fireplace floor assembly with screws
removed in step 3 of Removing Fireplace
Screen and Floor Assembly, page 9. Note: Dis-
card the remaining hardware items. After as-
sembly, make sure all wires are completely
clear of blower wheel.
13. Install logs (see Installing Logs, pages 23
through 25) and fireplace screen (see Install-
ing Screen, page 25).
WARNING:Failuretoposition
the parts in accordance with sup-
plied diagrams or failure to use
only parts specifically approved
withthis heater may resultindam-
age or personal injury.
WARNING: A qualified ser-
vice person must connect fire-
place to gas supply. Follow all
local codes.
Operating the Blower
Light your gas appliance with the blower off. Af-
ter about 15 minutes, turn the blower on to deliver
heated air at the top louvers. The blower features
a variable control which allows you to select the
speed you desire. Note: Periodically check the lou-
vers of the firebox and remove any dust, dirt, or
other obstructions.
INSTALLING THERMOSTATIC
BLOWER ACCESSORY
NOTICE: Shut off gas supply
and disconnect heater from gas
supply if installing blower in pre-
viously installed fireplace. Con-
tact a qualified service person
to do this.
1. If fireplace screen and floor are still installed,
see Removing Fireplace Screen and Floor
Assembly, page 9.
2. Using screw provided, attach green ground
wire from speed control cord to blower hous-
ing. Tighten screw securely (see Figure 18).
INSTALLATION
Continued
3. Place the blower against lower rear wall of
firebox outer wrapper with the exhaust port
directed upward. Align the holes in top mount-
ing tabs of blower with holes in wall of wrap-
per (see Figure 19, page 15). Using two #8
screws provided, mount blower and tighten
screws firmly.
4. Remove the three screws (do not discard) and
cover plate from center of firebox wrapper rear
wall. Discard this cover plate (see Figure 18).
5. Mount the supplied thermostatic switch and
cover assembly into firebox wrapper wall. Do
this by feeding terminal ends of wire harness
into the hole. Allow wires to fall to bottom of
firebox cavity (see Figure 18).
6. Using three screws from step 7, attach switch
and cover assembly to firebox wrapper rear
wall. Tighten screws firmly (see Figure 18).
7. Firmly attach red wire from the thermostatic
switch and cover assembly to either of the ter-
minals on the blower motor (see Figure 18).
8. Firmly attach black wire from speed control
cord to blue wire from thermostatic switch and
cover assembly (see Figure 18).
9. Firmly attach white wire from speed control
cord to remaining terminal on blower motor
(see Figure 18).
Figure 18 - Installing Switch and Cover
Assembly, and Speed Control
Thermostatic Switch
and Cover Assembly
Blue
Wire
Black
Wire
Green
Wire
White
Wire
Speed Control
Red
Wire

www.desatech.com
108117-01K 15
INSTALLATION
Continued
Blower
#8 Screws
Lower Rear Wall of Firebox
Exhaust
Port Top
Mounting
Tab
Figure 19 - Mounting Blower to Firebox
10. Place control knob provided on plastic con-
trol shaft of speed control (see Figure 20).
11. Mount the speed control onto the front leg of
the left floor support bracket using 2 screws
provided (see Figure 20).
WARNING: Failure to connect
all wires properly as indicated
may cause electrical short circuit
orpersonalinjury.Aqualified elec-
trician should check that all con-
nections are made properly.
12. Plug in blower power cord.
a. If your firebox is installed as a freestand-
ing unit with an accessory mantel, deter-
mine whether the power cord will exit the
left side or the right side of the firebox. In-
stall one plastic bushing provided into the 1
1/2" hole in the floor support on the exit side.
Install the second bushing provided into the
1 1/2" hole in the outer casing through which
the power cord will exit (see Figures 21 and
22). Route power cord through plastic bush-
ings and plug the power cord into a properly
grounded three-prong wall receptacle near
the firebox.
b. If your fireplace system installation is re-
cessed and if an outlet is not installed in
your fireplace, you must install the GA3555
Outlet kit with cover in your fireplace which
will supply a convenient 3-prong grounded
electrical outlet for your blower. Refer to the
installation manual provided with the model
GA3555 accessory for instructions on wir-
ing the duplex outlet.
Note: A qualified installer must make all
electrical connections.
13. Check to make sure that the power cord and
all wires are completely clear of the blower
wheel and that there are no other foreign ob-
jects in blower wheel.
CAUTION: Never touch the
blower wheel while in operation.
Figure 20 - Attaching Speed Control
Figure 21 - Installing Plastic Bushing for
Power Cord (Right Side Exit Shown)
Control Knob
Screws
Speed Control
Floor
Support
Bracket
Right Floor Support
Bracket
Bushing Location
for Recessed
Installation
Bushing Location
for Freestanding
Installation
Figure 22 - Installing Bushings (Left Side
Exit shown)
Plastic
Bushing
Plastic
Bushing

www.desatech.com 108117-01K
16
14. Peel off backing paper and stick supplied wir-
ing diagram decal near center of firebox bot-
tom (see Figure 23).
15. If gas connections have been made and
checked, replace fireplace floor assembly in
fireplace. Feed flexible gas supply line into
fireplace base area while replacing fireplace
floor assembly. Make sure the entire flexible
gas line is in fireplace base area. IMPOR-
TANT: Do not pick up fireplace floor assem-
bly by burners. This could damage burners.
Only handle base by grates. Note: Be careful
of all wires and components on underside of
floor assembly.
16. Reattach fireplace floor assembly with screws
removed in step 3 of Removing Fireplace
Screen and Floor Assembly, page 9. Note: Dis-
card the remaining hardware items. After as-
sembly, make sure all wires are completely
clear of blower wheel.
17. Install logs (see Installing Logs, pages 23
through 25) and fireplace screen (see Install-
ing Screen, page 25).
WARNING:Failuretoposition
the parts in accordance with sup-
plied diagrams or failure to use
only parts specifically approved
withthis heater may resultindam-
age or personal injury.
INSTALLATION
Continued
Red
Variable
Fan Switch Fan Switch
(N.O.)
Green
White
On
110/115
V.A.C.
Blower
Motor
Black
Off
1
2
Black
Blue
Figure 23 - Location of Wiring Diagram Decal 3" from Blower (actual
heater may vary from illustration)
120 Vac. 60 Hz. .90 Amps
DESA Heating Products, Bowling Green, KY
Variable
FanSwitch
White
White
Black
Green
On
110/115
V.A.C.
Blower
Motor
Black
Black
Black
Off
WARNING: Never attempt to service heater while it is
plugged in, operating, or hot. Burns and electrical shock
could result. Only a qualified service person should ser-
vice or repair heater.
If any of the original wire as supplied with the appliance must be
replaced, it must be replaced with 105°C wire or it’s equivalent.
WARNING: Label all wires prior to disconnection when
servicing controls.Wiring errors can cause improper and dan-
gerous operation.Verify proper operation after servicing.
Wiring
Diagram
If any of the original wire as supplied with the
appliance must be replaced, it must be replaced
with 105˚C wire or it's equivalent.
Operating the Blower
After final installation of your fireplace, light your
gas appliance with the blower off. After about 15
minutes, turn the blower on to deliver heated air at
the top louvers. The blower features a variable con-
trol which allows you to select the speed you de-
sire. In the OFF position, the blower will not oper-
ate. In the ON position, the blower will start when
the thermostat senses a sufficient increase in fire-
box temperature (approximately 10 to 20 minutes
depending on heat setting).
Your gas logs and thermostat blower will not turn
on and off at the same time. The fireplace may run
for several minutes before the blower turns on. Af-
ter the heater modulates to the pilot position, the
blower will continue to run. The blower will shut
off after the firebox temperature decreases.
It is safe to operate fireplace with blower turned
off. However, the blower helps distribute heated
air from the fireplace.
Note: Periodically check the louvers of the firebox
and remove any dust, dirt, or other obstructions.
WARNING: A qualified ser-
vice person must connect fire-
place to gas supply. Follow all
local codes.

www.desatech.com
108117-01K 17
INSTALLING GAS PIPING TO
FIREPLACE LOCATION
WARNING: A qualified ser-
vice person must connect fire-
place to gas supply. Follow all
local codes.
WARNING: For propane/LP
units, never connect fireplace di-
rectly to propane/LP supply. This
fireplace requires an external
regulator (not supplied). Install
theexternal regulatorbetween the
heater and propane/LP supply.
WARNING: For natural gas
units, never connect fireplace
to private (non-utility) gas wells.
This gas is commonly known as
wellhead gas.
Installation Items Needed
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 *
• sediment trap
• tee joint
• pipe wrench
• approved flexible gas line with gas connector
(if allowed by local codes) (not provided)
* 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 41.
For propane/LP connections only, the installer
must supply an external regulator. The external
regulator will reduce incoming gas pressure. You
must reduce incoming gas pressure to between 11
INSTALLATION
Continued
and 14 inches of water. If you do not reduce in-
coming gas pressure, heater regulator damage
could occur. Install external regulator with the vent
pointing down as shown in Figure 24. 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"
diameter or greater 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 fireplace (see Figure 24).
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. Never use sealant on
flare threads.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
Figure 24 - External Regulator with Vent
Pointing Down
Propane/LP
Supply Tank
External
Regulator
Vent
Pointing
Down

www.desatech.com 108117-01K
18
INSTALLATION
Continued
Figure 25 - Gas Connection
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer. See
Accessories, page 41.
Natural
From Gas Meter
(5" W.C. to 10.5"
W.C. Pressure)
Propane/LP
From External
Regulator (11"
W.C. to 14 "
W.C. Pressure
CSA Design-Certified
Equipment Shutoff Valve
With 1/8" NPT Tap*
3" Minimum
Sediment Trap
Pipe Cap Tee
Nipple Joint
CONNECTING FIREPLACE TO GAS
SUPPLY
Installation Items Needed
• 5/16" hex socket wrench or nut-driver
• Phillips screwdriver
• sealant (resistant to propane/LP gas, not pro-
vided)
1. If fireplace screen and floor are still installed,
see Removing Fireplace Screen and Floor
Assembly, page 9.
2. Route gas line (provided by installer) from
equipment shutoff valve to fireplace. Route
flexible gas supply line through one of the
access holes.
Figure 26 - Attaching Gas Lines Together
From Gas Meter (Natural)
From External Regulator
(Propane/LP)
Flexible Gas Line
from Fireplace
Gas Regulator
To Fireplace
Gas Regulator
Equipment
Shutoff Valve
Provided by
Installer
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.
We recommend that you install a sediment trap in
supply line as shown in Figure 25. Locate sedi-
ment trap where it is within reach for cleaning.
Install in piping system between fuel supply and
fireplace. Locate sediment trap where trapped mat-
ter is not likely to freeze. A sediment trap traps
moisture and contaminants. This keeps them from
going into fireplace gas controls. If sediment trap
is not installed or is installed wrong, fireplace may
not run properly.
NOTICE: Most building codes do
not permit concealed gas con-
nections. A flexible gas line is
provided to allow accessibility
from the fireplace (see Figure 26).
The flexible gas supply line con-
nection to the equipment shutoff
valve should be accessible.
3. Attach the flexible gas line to gas supply (see
Figure 26). Check tightness of flexible gas
line attached to gas regulator of fireplace (see
Figure 26).
4. Check all gas connections for leaks. See
Checking Gas Connections.
5. Replace fireplace floor assembly. Feed flexible
gas line into fireplace base area while replac-
ing fireplace floor assembly. Make sure the en-
tire flexible gas line is in fireplace base area.
Note: Be careful of wires and components on
underside of fireplace floor. Reattach fireplace
floor assembly with screws removed in step 3
of Removing Fireplace Screen and Floor As-
sembly, page 9.

www.desatech.com
108117-01K 19
INSTALLATION
Continued
WARNING: For propane/LP
units, make sure external regu-
lator has been installed between
propane/LP supply and heater.
See guidelines under Installing
Gas Piping to Fireplace Loca-
tion , 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 excess of 1/2 psig will damage
fireplace gas regulator.
2. Cap off open end of gas pipe where equip-
ment shutoff valve was connected.
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 27).
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 for natural or
propane/LP supply to equipment shutoff valve
(see Figures 28 or 29). Apply noncorrosive
leak detection fluid to all joints. Bubbles form-
ing show a leak.
4. Correct all leaks at once.
Figure 28 - Checking Gas Joints for
Natural Gas Fireplace
Figure 29 - Checking Gas Joints for
Propane/LP Gas Fireplace
Figure 27 - Equipment Shutoff Valve
O
POS
P
O
Open
Closed
Equipment
Shutoff
Valve
Equipment
Shutoff Valve
Manual Gas Valve
Gas Meter
Equipment Shutoff Valve
Manual Gas Valve
Propane/LP
Supply Tank
Pressure Testing Fireplace Gas
Connections
1. Open equipment shutoff valve (see Figure 27).
2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP sup-
ply tank valve.
3. Place manual ignition switch in the OFF po-
sition.
4. Check all joints from equipment shutoff valve
to gas valve (see Figure 28 or 29). 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,
pages 26 through 28). Check all other inter-
nal joints for leaks.
7. Turn off fireplace (see To Turn Off Gas to
Appliance, page 27 or 28).

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20
CONVENTIONAL FIREPLACE
INSTALLATION
Conventional installation of fireplace involves
installing fireplace along with corner, face, or cabi-
net mantel with hearth base accessories against a
wall in your home. Follow instructions below to
install fireplace in this manner.
Note: The instructions below show installation
using the cabinet mantel and hearth base accesso-
ries (see Accessories, page 41. The hearth base
accessory shown is optional for this installation.
You can install fireplace and cabinet mantel di-
rectly on the floor. The corner mantel accessory
cannot be installed with the hearth bases. You must
install corner mantel directly on the floor.
1. Assemble cabinet mantel, hearth base, and
trim accessories. Assembly instructions are in-
cluded with each accessory.
2. When installing blower, install a properly
grounded, 120 volt three-prong electrical out-
let at fireplace location if an outlet is not there.
If possible, locate outlet so cabinet mantel will
cover it when installed (see Figure 30).
3. If not already completed, install gas piping to
fireplace location. 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 in-
stalled on the gas piping. See Installing Gas
Piping to Fireplace Location, page 17.
4. Place hearth base accessory against wall at in-
stallation location. Cut an access hole in hearth
top to run flexible gas line to fireplace (see Fig-
ure 30). Make sure to locate access hole so cabi-
net mantel will cover it when installed. Note: Yo u
can secure base to floor using wood screws. Coun-
tersink screw heads and putty over.
5. Route flexible gas line through access hole in
hearth base.
6. Center cabinet mantel on hearth base (see Fig-
ure 31). Make sure mantel is flush against wall.
7. Break off nailing flanges (see Figure 32) with
hammer or pliers.
8. Place cardboard or other protective material
on top of hearth base. Carefully set fireplace
on protective material, with back of fireplace
inside mantel opening.
9. Attach flexible gas line to fireplace gas regulator.
See Connecting Fireplace to Gas Supply, page 18.
10. Route electrical cord(s) through access holes
in either side of fireplace with bushing. Plug
electrical cord(s) into electrical outlet.
INSTALLATION
Continued
11. Carefully insert fireplace into cabinet mantel
(see Figure 33, page 21). Be careful not to
scratch or damage hearth base, cabinet man-
tel, or any laminate trim on hearth base. Re-
move protective material from top of hearth
base and from front of fireplace (if any). Note:
You can secure fireplace to hearth or floor.
Open lower louver. Locate screw holes in bot-
tom of base. Tighten wood screws through
these holes and into hearth or floor.
Figure 30 - Placing Hearth Base
Accessory Against Wall
Electrical Outlet
Hearth
Base
Rigid Pipe
and Gas
Shutoff Valve
Gas Line Access Hole
Figure 31 - Installing Cabinet Mantel
Cabinet
Mantel
Figure 32 - Location of Nailing Flanges
(EFP33PR Shown)
Nailing
Flanges