®
UNVENTED (VENT-FREE)
NATURAL GAS FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
VYGF33NRA
REMOTE READY
GAS FIREPLACE
Patent Pending
SYSTEM
Shown with optional
cabinet mantel,
hearth base, and trim
accessories.
WARNING: Improper installation,
adjustment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this
manualforcorrectinstallationand
operational procedures. For as-
sistanceoradditionalinformation
consult a qualified installer, ser-
vice agency, or the gas supplier.
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result caus-
ing property damage, personal injury, or loss of life.
— Donotstoreorusegasolineorotherflammable
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.
WARNING: This is an unvented
gas-fired heater. It uses air (oxy-
gen) from the room in which it is
installed.Provisionsforadequate
combustion and ventilation air
mustbeprovided. RefertoAirfor
CombustionandVentilationsec-
tion on page 4 of this manual.
•
•
If you cannot reach your gas supplier, call
the fire department.
— Installation and service must be performed by
a qualified installer, service agency, or the gas
supplier.
This appliance may be installed in an aftermarket,* permanently located, manufac-
tured (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
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OWNER’S MANUAL
PRODUCT
IDENTIFICATION
LOCAL CODES
Install and use fireplace with care. Follow all
localcodes.Intheabsenceoflocalcodes,use
One Piece Log Set
the latest edition of The National Fuel Gas
CodeANSZ223.1,alsoknownasNFPA54*.
*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
UNPACKING
W
ARMER
COOLER
TEMP
AUT
ON
OFF
O
I
H
L
O
O
F
F
N
O
T
L
I P
O
WARNING: Do not remove
the metal data plates attached to
the heater base assembly. The
data plates contain important
warranty information.
Control
Knobs
Piezo
Ignitor
Remote Selector
Switch (Optional)
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 packing. Note: The
hood is located in the packing on the
right hand side of the heater front. Lift
the heater off the bottom tray.
Figure 1 - Log Base Assembly
Top Outer
Casing
Top Louver
Assembly
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.
Firebox
Hood
Firebox
Support
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 dam-
age. If damaged, promptly inform
dealer where you bought fireplace.
Screen
Assembly
Bottom Louver
Assembly
Blower Assembly
(Optional)
Figure 2 - Fireplace
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®
UNVENTED NATURAL GAS FIREPLACE
buildings of unusually tight construction,
you must provide additional fresh air.
PRODUCT
FEATURES
AIR FOR
COMBUSTION AND
VENTILATION
Unusually tight construction is de-
fined as construction where:
a. walls and ceilings exposed to the
outside atmosphere have a con-
tinuous water vapor retarder with
a rating of one perm (6 x 10-11 kg
per pa-sec-m2) or less with open-
ings gasketed or sealed and
b. weather stripping has been
added on openable windows and
doors and
c. caulking or sealants are applied
to areas such as joints around
window and door frames, be-
tween sole plates and floors, be-
tween wall-ceiling joints, be-
tween wall panels, at penetra-
tions for plumbing, electrical, and
gas lines, and at other openings.
If your home meets all of the three
criteria above, you must provide ad-
ditional fresh air. See Ventilation Air
From Outdoors, page 6.
OPERATION
WARNING: This heater shall
notbeinstalledinaconfinedspace
or unusually tight construction
unless provisions are provided
foradequatecombustionandven-
tilation air. Read the following in-
structions to insure proper fresh
air for this and other fuel-burning
appliances in your home.
This vent-free fireplace is clean burning. It
requiresnooutsideventing. Thereisnoheat
loss out a vent or up a chimney. Heat is
generatedbybothrealisticflamesandglow-
ing embers. When used without the blower,
the fireplace requires no electricity making
it ideal for emergency backup heat.
SAFETY DEVICE
Today’s homes are built more energy effi-
cient than ever. New materials, increased
insulation, and new construction methods
helpreduceheatlossinhomes. Homeowners
weather strip and caulk around windows and
doorstokeepthecoldairoutandthewarmair
in. During heating months, home owners
want their homes as airtight as possible.
This fireplace has a pilot with an Oxygen
DepletionSensing(ODS)safetyshutoffsys-
tem. The ODS/pilot is a required feature for
vent-free room heaters. The ODS system
shuts off the fireplace if there is not enough
fresh air.
PIEZO IGNITION SYSTEM
This fireplace has a piezo ignitor. This sys-
tem requires no matches, batteries, or other
sources to light fireplace.
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 com-
bustion and ventilation.
If your home does not meet all of the
three criteria above, proceed to Deter-
mining Fresh-Air Flow for Fireplace
Location on page 5.
OPTIONAL REMOTE
CONTROL UNITS
Exhaustfans, fireplaces, clothesdryers, and
fuel burning appliances draw air from the
house to operate. You must provide ad-
equate fresh air for these appliances. This
will insure proper venting of vented fuel-
burning appliances.
There are four optional remote controls that
can be purchased separately for this log
heater:
Confined Space and Unconfined
Space
• wall switch
The National Fuel Gas Code ANS Z223.1
defines a confined space as a space whose
volume is less than 50 cubic feet per 1,000
Btu per hour (4.8 m3 per kw) of the aggre-
gate input rating of all appliances installed
in that space and an unconfined space as a
space whose volume is not less than 50
cubic feet per 1,000 Btu per hour (4.8 m3 per
kw) of the aggregate input rating of all
appliances installed in that space. Rooms
communicating directly with the space in
whichtheappliancesareinstalled*,through
openings not furnished with doors, are con-
sidered a part of the unconfined space.
• wall thermostat
• hand-held ON/OFF remote
• hand-held thermostat remote
PROVIDING ADEQUATE
VENTILATION
See Accessories, pages 22 and 23.
The following are excerpts from National
Fuel Gas Code. NFPA 54/ANS Z223.1, Sec-
tion5.3, AirforCombustionandVentilation.
OPTIONAL BLOWER
ASSEMBLY (GA3700 SERIES
& GA3700TA SERIES)
This fireplace accepts an optional blower
assembly (not included). The GA3700TA
Series blower operatesthermostatically and
features a variable speed control. The
All spaces in homes fall into one of the three
following ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
This heater shall not be installed in a con-
fined space or unusually tight construction
unless provisions are provided for adequate
combustion and ventilation air.
GA3700 Series blower operates manually The information on pages 4 through 6 will
and also features a variable speed control. help you classify your space and provide
The blower circulates heated air from the adequate ventilation.
fireplace into the room. See Accessories,
Unusually Tight Construction
pages 22 and 23.
* Adjoining rooms are communicating only
iftherearedoorlesspassagewaysorventila-
tion grills between them.
The air that leaks around doors and win-
dows may provide enough fresh air for
combustion and ventilation. However, in
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OWNER’S MANUAL
AIR FOR
COMBUSTION AND
VENTILATION
Continued
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 passageways or ventilation grills
between the rooms.
1. Determine the volume of the space (length x width x height).
Length x Width x Height = _________________cu. ft. (volume of space)
Example: Space size 22 ft. (length) x 18 ft. (width) x 8 ft. (ceiling height) = 3168 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of
the space.
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.
_________________ (volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr the space can support)
Example: 3168 cu. ft. (volume of space) ÷ 50 cu. ft. = 63.3 or 63,300 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free fireplace
Gas water heater*
Gas furnace
___________________ Btu/Hr
___________________ Btu/Hr
___________________ Btu/Hr
___________________ Btu/Hr
___________________ Btu/Hr
___________________ Btu/Hr
___________________ Btu/Hr
Example:
40,000
33,000
73,000
Gas water heater
Vent-free fireplace
Total
Btu/Hr
Btu/Hr
Btu/Hr
Vented gas heater
Gas fireplace logs
Other gas appliances* +
+
=
Total
=
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
_____________ Btu/Hr (maximum the space can support)
_____________ Btu/Hr (actual amount of Btu/Hr used)
Example: 63,300 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 maximum Btu/Hr the space can support.
You must provide additional fresh air. Your options are as follows:
A. Rework work sheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoin-
ing room or add ventilation grills between rooms. See Ventilation Air from Inside Building, page 6.
B. Vent room directly to the outdoors. See Ventilation Air from Outdoors, page 6.
C. Install a lower Btu/Hr fireplace, if lower Btu/Hr size makes room unconfined.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no
additional fresh air ventilation.
WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space
or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of
the methods described in the National Fuel Gas Code, ANS Z223.1, Section 5.3 or applicable local codes.
Continued
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®
UNVENTED NATURAL GAS FIREPLACE
AIR FOR
COMBUSTION AND
12"
VENTILATION
Continued
Ventilation
Grills
Into Adjoining
Room,
Ventilation Grills
Into Adjoining Room,
Option 2
VENTILATION AIR
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Air From Inside
Building
Option 1
Thisfreshairwouldcomefromanadjoining
unconfined space. When ventilating to an
adjoining unconfined space, you must pro-
vide 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 3). You can also
remove door into adjoining room (see op-
tion 3, Figure 3). Follow the National Fuel
Gas Code NFPA 54/ANS Z223.1, Section
5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
12"
Figure 3 - Ventilation Air from Inside Building
WARNING: Rework work-
sheet, adding the space of the
adjoining unconfined space. The
combined spaces must have
enough fresh air to supply all
appliances in both spaces.
Ventilated
Outlet
Attic
Air
Outlet
Air
Ventilation Air From Outdoors
To Attic
Provide extra fresh air by using ventilation
grills or ducts. You must provide two per-
manent openings: one within 12" of the
ceiling and one within 12" of the floor.
Connecttheseitemsdirectlytotheoutdoors
orspacesopentotheoutdoors.Thesespaces
include attics and crawl spaces. Follow the
National Fuel Gas Code NFPA 54/ANS
Z223.1, Section 5.3, Air for Combustion
and Ventilation for required size of ventila-
tion grills or ducts.
To
Crawl
Space
Inlet
Air
Ventilated
Crawl Space
Inlet Air
Figure 4 - Ventilation Air from Outdoors
IMPORTANT: Do not provide openings for
inletoroutletairintoatticifattichasathermo-
stat-controlled power vent. Heated air enter-
ing the attic will activate the power vent.
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OWNER’S MANUAL
Usethedimensionsshownforroughopenings
to create the easiest installation. See Built-In
Fireplace Installation, pages 9 and 10.
ASSEMBLING AND
ATTACHING OPTIONAL
BRASS TRIM
INSTALLATION
NOTICE: This heater is intended
foruseassupplementalheat.Use
this heater along with your pri-
mary heating system. Do not in-
stall this heater as your primary
heat source. If you have a central
heating system, you may run
system’scirculatingblowerwhile
using heater. This will help circu-
late the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
IMPORTANT:Vent-freeheatersaddmois-
ture to the air. Although this is beneficial,
installingfireplaceinroomswithoutenough
ventilation air may cause mildew to form
from too much moisture. See Air for Com-
bustion and Ventilation, pages 4 through 6.
(IncludedwithMantelAccessory)
IMPORTANT:Ifyouarerecessingthefire-
box in a wall, do not attach brass trim at this
time. See page 9.
Note: The instructions below show assem-
bling and attaching brass trim to fireplace.
IMPORTANT: Make sure the fireplace is
level. Iffireplaceisnotlevel, logsetwillnot
work properly.
1. Remove packaging from three pieces
of brass trim.
2. Locate four brass screws, two adjust-
ing plates with set screws, and two
shims in the hardware packet.
3. Align shim under adjusting plate as
shown in Figure 6.
4. Slide one end of adjusting plate/shim
in slot on mitered edge of top brass trim
(see Figure 6).
5. Slide other end of adjusting plate/shim
in slot on mitered edge of side brass
trim (see Figure 6).
6. While firmly holding edges of brass
trim together, tighten both set screws
on the adjusting plate with slotted
screwdriver.
CHECK GAS TYPE
Use only natural gas. If your gas supply is
not natural gas, do not install fireplace. Call
dealerwhereyouboughtfireplaceforproper
type fireplace.
WARNING: A qualified ser-
vicepersonmustinstallfireplace.
Follow all local codes.
ELECTRICAL HOOKUP
(Models GA3700 Series and
GA3700T Series Blower
Accessories, and GA3555
Internal Duplex Kit)
WARNING: Never install the
fireplace
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objectsarelessthan42inches
from the front, top, or sides of
the fireplace
This fireplace accepts a blower assembly
withanelectricalcord. Theelectricalcordis
fivefeetinlength.Youmustlocatefireplace
within reach of a 120 volt grounded electri-
cal outlet. If not, you must install an electri-
cal outlet within reach of fireplace power
cord. The GA3555 outlet accessory may be
used for built-in applications with blower
accessory installed.
7. Repeat steps 1 through 6 for other side.
Set Screws
Top
• in high traffic areas
• in windy or drafty areas
Side Brass
Brass
Trim
Trim
Adjusting
Plate
CAUTION: This fireplace cre-
ateswarmaircurrents.Thesecur-
rents move heat to wall surfaces
next to fireplace. Installing fire-
place next to vinyl or cloth wall
coverings or operating fireplace
where impurities (such as to-
bacco smoke, aromatic candles,
cleaning fluids, oil or kerosene
lamps, etc.) in the air exist, may
discolor walls.
INSTALLING HOOD
Install hood to top of firebox as shown in
Figure 5. Use 3 Phillips screws provided.
Shim
Slot
Mitered Edge
Slot
Figure 6 - Assembling Brass Trim
Note: Your fireplace is designed to be used
inzeroclearanceinstallations.Wallorfram-
ing 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.
Figure 5 - Installing Hood to Firebox
Continued
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UNVENTED NATURAL GAS FIREPLACE
4. Place hearth base accessory against
121/4
101/2
INSTALLATION
wall at installation location. Cut an ac-
cess hole in hearth top to run gas line
to fireplace (see Figure 9). Make sure
to locate access hole so cabinet mantel
will cover it when installed. Note:You
can secure base to floor using wood
screws. Countersink screw heads and
putty over.
Continued
8 3
/4
Example
7
8. Tighten trim hanging screws (#10 x
6.25 shoulder) into holes in cabinets.
Place the assembled trim onto fireplace
cabinet. Align hanging notches on trim
with hanging screws on side of fire-
place (see Figure 7). Push trim firmly
into place, sliding hanging notches over
hanging screws.
51/4
31/2
13/4
7/8
7/16
FIREBOX
.5
1
2
4
6
8
10 12 14 16
*
INCHES
5. Route gas line through access hole in
hearth base.
*Minimum 16 inches from Side Wall
Figure 8 - Minimum Clearance for
Combustible to Wall
6. Center cabinet mantel on hearth base
(see Figure 10). Make sure mantel is
flush against wall.
Trim
Hanging
Screws
CONVENTIONAL FIREPLACE
INSTALLATION
7. Break off nailing flanges (see Figure
11, page 9) with hammer or pliers.
Conventional installation of this fireplace
involves installing fireplace along with the
corner, face, or cabinet mantel with hearth
baseaccessoriesagainstawallinyourhome.
Follow the instructions below to install the
fireplace in this manner.
8. Place cardboard or other protective
material on top of hearth base. Care-
fully set fireplace on protective mate-
rial, with back of fireplace inside man-
tel opening.
Hanging
Notches
on Trim
Assembled
Brass Trim
9. If blower is installed, route blower elec-
trical cord through access holes in ei-
ther side of fireplace. Note: Bushing
may be moved if necessary. Plug elec-
trical cord into electrical outlet.
Note:Theinstructionsbelowshowinstalla-
tion using the cabinet mantel and the
G3000F/G3001U/G3004W/G3006F/
G3007U series hearth base accessories. The
hearth base accessory shown is optional for
this installation. You can install fireplace
and cabinet/corner mantel directly on the
floor. The corner mantel accessory cannot
be installed with the G3000F/G3001U/
G3004W/G3006F/G3007U hearth bases.
The corner mantel can be paired with the
G3008F/G3009U/G3010F corner hearth
base. If mounting fireplace and cabinet or
cornermanteltothefloor,anoptionalG3005
Slim Base kit may be installed.
Figure 7 - Attaching Brass Trim to
Fireplace
INSTALLATION
CLEARANCES
Electrical
Outlet
Gas Line
Access
Hole
Flexible
Gas Line
Hearth
Base
WARNING:Maintainthemini-
mum clearances. If you can, pro-
vide greater clearances from
floor, ceiling, and adjoining wall.
Carefullyfollowtheinstructionsbelow.This
will ensure safe installation.
Figure9-PlacingHearthBaseAccessory
Against Wall
1. Assemble cabinet mantel, hearth base,
and trim accessories.Assembly instruc-
tions are included with each accessory.
Minimum Clearances For Side
Combustible Material, Side Wall,
and Ceiling
A. Clearances from the side of the fireplace
cabinet to any combustible material and
wall should follow diagram in Figure 8.
2. When installing blower, install a prop-
erly grounded, 120 volt three-prong
electrical outlet at fireplace location if
an outlet is not there. If possible, lo-
cate outlet so cabinet mantel will cover
it when installed (see Figure 9).
Cabinet
Mantel
Example: The face of a mantel, book-
shelf, etc. is made of combustible ma-
terial and protrudes 3 1/2" from the wall.
This combustible material must be 4"
from the side of the fireplace opening
(see Figure 8).
3. 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 installed on the gas piping. See
Installing Gas Piping to Fireplace Lo-
cation, pages 10 and 11.
B. Clearances from the top of the fireplace
opening to the ceiling should not be less
than 42 inches.
Figure 10 - Installing Cabinet Mantel
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OWNER’S MANUAL
9. Plug electrical cord into electrical out-
let installed in step 2.
BUILT-IN FIREPLACE
INSTALLATION
INSTALLATION
Continued
10. Install brass trim after final finishing
10. Carefully insert fireplace into cabinet
mantel. Be careful not to scratch or
damage hearth base, cabinet mantel, 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 bottom of base.
Tighten wood screws through these
holes and into hearth or floor.
Built-ininstallationofthisfireplaceinvolves
installing fireplace into a framed-in enclo-
sure. This makes the front of fireplace flush
with wall. If installing a mantel above the
fireplace, you must follow the clearances
shown in Figure 16, page 10 . Follow the
instructions below to install the fireplace in
this manner.
and/or painting of wall (see Figure 7,
page 8).
17 3/4"
Actual
32 3/8"
Framing
33"
Height
33"
11. Attach gas line from fireplace gas regu-
lator to gas supply. See Connecting
Fireplace to Gas Supply, page 11.
Front Width 34 5/16"
Depth
16 11/16"
35 1/2"
17 3/4"
12. Check all gas connections for leaks. See
35 1/2"
1. Frame in rough opening. Use dimen-
sions shown in Figure 13 for the rough
opening.
Checking Gas Connections, page 12.
Figure 13 - Rough Opening for Installing
in Wall
If installing in a corner, use dimen-
sions shown in Figure 14 for the rough
opening. The height is 33" which is
the same as the wall opening above.
39 3/8"
27 7/8"
2. If using blower, install and properly
ground GA3555, three-prong 120 volt
electrical outlet, in fireplace. Follow
instructions included in kit (see Acces-
sories, pages 22 and 23).
35 1/2"
55 5/8"
Figure 14 - Rough Opening for Installing
in Corner
3. 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 installed on the gas pip-
ing. See Installing Gas Piping to Fire-
place Location, pages 10 and 11.
Nailing
Flanges
Nails or
Wood
Screws
Figure 11 - Location of Nailing Flanges
4. Carefully set fireplace in front of
rough opening with back of fireplace
inside wall opening.
5. Attach flexible gas line to gas supply.
See Connecting Fireplace to Gas Sup-
ply, page 11.
6. Carefully insert fireplace into rough
opening.
Nailing Flanges
7. Attach fireplace to wall studs using
nails or wood screws through holes in
nailing flange (see Figure 15).
Figure 15 - Attaching Fireplace to Wall
Studs
8. Check all gas connections for leaks. See
Checking Gas Connections, page 12.
Figure12-InsertingFireplaceIntoCabinet
Mantel
Continued
105269
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®
UNVENTED NATURAL GAS FIREPLACE
INSTALLING GAS PIPING TO
FIREPLACE LOCATION
INSTALLATION
Continued
Mantel Clearances for Built-In
Installation
WARNING:Thisappliancere-
quires a 1/2" NPT (National Pipe
Thread) inlet connection to the
pressure regulator.
If placing mantel above built-in fireplace,
youmustmeetminimumclearancebetween
mantel shelf and top of fireplace opening.
If your installation does not meet the below
minimum clearances, you must:
WARNING: A qualified ser-
vice person must connect fire-
place to gas supply. Follow all
local codes.
• raise the mantel to an acceptable height,
OR
• remove the mantel.
Installation Items Needed
Before installing fireplace, make sure you
have the items listed below.
Wall board or facing
material (above
firebox) may be of
combustible material,
including decorative
mantel ornaments or
other similar projec-
tions off of the facing
material.
Mantel Shelf
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
10"
8"
6"
2 1/2"
• tee joint
Framing
Material
• pipe wrench
Noncombustible
Material May
Project Off this
Surface above
the Firebox Hood
* A CSA/AGA design-certified equipment
shutoff valve with 1/8" NPT tap is an accept-
able alternative to test gauge connection.
Purchase the optional CSA/AGA design-
certified equipment shutoff valve from your
dealer. See Accessories, pages 22 and 23.
Firebox
13" 16" 19" 21"
Note: All vertical
Wire-mesh
Screen
WARNING: Never connect
fireplace to private (non-utility)
gas wells. This gas is commonly
known as wellhead gas.
measurements are
from top of fireplace
hood opening to bottom
of mantel shelf.
Supplied Firebox
Hood Must Be
Used at All Times
These minimum
clearances replace any
other recommended
clearances supplied with
your ANS Z21.11.2
approved gas logs.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
yourlocalcodes. Usepipeof1/2"
diameter or greater to allow
proper gas volume to fireplace. If
pipe is too small, undue loss of
pressure will occur.
Figure 16 - Minimum Mantel Clearances for Built-In Installation
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 17, page 11).
105269
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OWNER’S MANUAL
3. Route gas line (provided by installer)
CONNECTING FIREPLACE
TO GAS SUPPLY
INSTALLATION
from equipment shutoff valve to fire-
place. Route flexible gas supply line
through one of the access holes.
Continued
IMPORTANT: Install equipment shutoff
valve in an accessible location. The equip-
ment shutoff valve is for turning on or
shutting off the gas to the appliance.
Installation Items Needed
• 5/16" hex socket wrench or nut-driver
• Phillips screwdriver
NOTICE:Mostbuildingcodesdo
not permit concealed gas con-
nections. A flexible gas line is
provided to allow accessibility
fromthefireplace(seeFigure19).
The flexible gas supply line con-
nection to the equipment shutoff
valve should be accessible.
• sealant (resistant to propane/LP gas, not
provided)
Check your building codes for any special
requirementsforlocatingequipmentshutoff
valve to fireplaces.
1. Remove fireplace screen. Remove two
screws that hold fireplace screen in
place for shipping. These screws are
located near top of screen. Discard
screws. Lift fireplace screen up and pull
out to remove.
Apply pipe joint sealant lightly to male
threads. This will prevent excess sealant
from going into pipe. Excess sealant in pipe
could result in clogged fireplace valves. Do
not use sealant on flare threads.
4. Attach the flexible gas line to gas sup-
ply (see Figure 19). Check tightness of
flexible gas line attached to gas regu-
lator of fireplace (see Figure 19).
2. Remove screws that attach log base
assembly to fireplace (see Figure 18).
Carefully lift up log base assembly and
remove from fireplace (see Figure 18).
CAUTION:Usepipejointseal-
ant that is resistant to liquid pe-
troleum (LP) gas.
5. Check all gas connections for leaks. See
Checking Gas Connections, page 12.
Note:If adding the G8000 series brick liner
accessory, install it now. Follow instruc-
tions in G8000 accessory kit.
6. Replace log base assembly back into
fireplace. Feed flexible gas line into fire-
place base area while replacing log base
assembly. Make sure the entire flexible
gas line is in fireplace base area. Reat-
tach log base assembly to fireplace with
screws removed in step 2.
We recommend that you install a sediment
trap in supply line as shown in Figure 17.
Locate sediment trap where it is within
reach for cleaning. Install in piping system
betweenfuelsupplyandheater.Locatesedi-
ment trap where trapped matter is not likely
to freeze. A sediment trap traps moisture
and contaminants. This keeps them from
going into fireplace gas controls. If sedi-
ment trap is not installed or is installed
wrong, fireplace may not run properly.
CAUTION: Do not pick up log
base assembly by burners. This
could damage burners. Only
handle base by grates.
To Fireplace
Gas Regulator
Flexible Gas
Line from
Fireplace Gas
Regulator
CSA/AGA Design-
Certified Equipment
Shutoff Valve With
1/8" NPT Tap*
Equipment
Shutoff Valve
Provided by
Installer
To Gas
Meter
Figure 19 - Attaching Flexible Gas Lines
Together
3" Minimum
From Gas
Meter (5"
W.C. to
10.5" W.C.
Pressure)
Pipe Cap Tee
Nipple Joint
Figure18-RemovingLogBaseAssembly
From Fireplace
Sediment Trap
Figure 17 - Gas Connection
* Purchase the optional CSA/AGA design-
certifiedequipmentshutoffvalvefromyour
dealer. See Accessories, pages 22 and 23
Continued
105269
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®
UNVENTED NATURAL GAS FIREPLACE
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
Pressure Testing Fireplace Gas
Connections
1. Open equipment shutoff valve (see Fig-
ure 20).
INSTALLATION
Continued
1. Close equipment shutoff valve (see Fig-
ure 20).
CHECKING GAS
CONNECTIONS
2. Pressurize supply piping system by ei-
ther using compressed air or opening
main gas valve located on or near gas
meter.
2. Open main gas valve located on or near
gas meter.
3. Make sure control knob of fireplace is
in the OFF position.
WARNING: Test all gas pip-
ing and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.
3. Check all joints from gas meter to
equipment shutoff valve (see Figure
21). Apply mixture of liquid soap and
water to gas joints. Bubbles forming
show a leak.
4. Check all joints from equipment shutoff
valve to gas control valve (see Figure
21). Apply mixture of liquid soap and
water to gas joints. Bubbles forming
show a leak.
WARNING:Neveruseanopen
flame to check for a leak. Apply a
mixture of liquid soap and water
toalljoints.Bubblesformingshow
a leak. Correct all leaks at once.
4. Correct all leaks at once.
5. Correct all leaks at once.
Open
6. Light fireplace (see Operating Fire-
place, pages 14 through 16). Check all
other internal joints for leaks.
Equipment
Shutoff
Valve
Pressure Testing Gas Supply
Piping System
7. Turn off fireplace (see To Turn Off Gas
to Appliance, page 15).
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
Closed
Figure 20 - Equipment Shutoff Valve
1. Disconnect fireplace and its individual
equipment shutoff valve from gas sup-
ply piping system. Pressures in excess
of 1/2 psig will damage fireplace gas
regulator.
Equipment
Shutoff
Valve
2. Cap off open end of gas pipe where
equipment shutoff valve was con-
nected.
3. Pressurize supply piping system by ei-
ther using compressed air or opening
main gas valve located on or near gas
meter.
Gas Meter
4. Check all joints of gas supply piping
system. Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.
5. Correct all leaks at once.
6. Reconnect fireplace and equipment
shutoff valve to gas supply. Check re-
connected fittings for leaks.
Gas Control Valve
Figure 21 - Checking Gas Joints
105269
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OWNER’S MANUAL
INSTALLATION
Continued
INSTALLING LOGS
One Piece
Log Set
WARNING: Do not remove
the metal data plates attached to
the heater base assembly. The
data plates contain important
warranty information.
Middle
Section at
Bottom of Log
Set
WARNING: Failure to position
thepartsinaccordancewiththese
diagrams or failure to use only
parts specifically approved with
this heater may result in property
damage or personal injury.
Burner
Chassis
I
H
L
O
O
F
F
N
O
T
L
I P
O
"U"-shaped
Cutout in
Chassis
WARNING: After installation
andperiodicallythereafter,check
to ensure that no flame comes in
contact with any log. With the
heater set to High, check to see if
flamecontactanylog. Ifso, repo-
sition logs according to the log
installation instructions in this
manual. Flames contacting logs
will create soot.
Figure 22 - Installing One Piece Log Set
One Piece Log Set
Burner Ports
Itisveryimportanttoinstallthelogsexactly
as instructed. Do not modify logs. Only use
logs supplied with heater.
Figure 23 - Installing One Piece Log Set
(Top View)
1. Place one-piece log set on grate to fit
as illustrated in Figure 22. Make sure
middle section at bottom of log set is
seated into "U"-shaped cutout in cen-
ter of chassis (see Figure 23).
IMPORTANT: Make sure log does not
cover any burner ports.
2. Install fireplace screen by slipping
notches of fireplace screen over screws
on front of fireplace (see Figure 24).
WARNING:Youmustoperate
this fireplace with the fireplace
screen in place. Make sure fire-
place screen is in place before
running fireplace.
Notches
Screws for
Mounting Screen
Figure 24 - Installing Fireplace Screen
105269
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UNVENTED NATURAL GAS FIREPLACE
Note: You may be running this
LIGHTING
INSTRUCTIONS
OPERATING
FIREPLACE
heater for the first time after hook-
ing up to gas supply. If so, the con-
trol knob may need to be pressed in
for 30 seconds or more. This will al-
low air to bleed from the gas system.
WARNING: You must operate
this heater with the fireplace
screen in place. Make sure fire-
place screen is in place before
running heater.
FOR YOUR SAFETY
READ BEFORE
LIGHTING
7. With control knob pressed in, press
and release ignitor button. This will
light pilot. The pilot is attached to the
front burner. If needed, keep press-
ing ignitor button until pilot lights.
WARNING: If you do not fol-
low these instructions exactly, a
fireorexplosionmayresultcaus-
ing property damage, personal
injury or loss of life.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Open damper or window to vent
smell. This will only last a few
hours.
Note: If pilot does not stay lit, con-
tact a qualified service person or gas
supplier for repairs. Until repairs are
made, light pilot with match. To light
pilot with match, see Manual Light-
ing Procedure on page 15.
A. This appliance has a pilot which must
be lighted by hand. When lighting the
pilot, follow these instructions exactly.
1. STOP! Read the safety information,
column 1.
B. BEFORE LIGHTING smell all
around the appliance area for gas. Be
sure to smell next to the floor because
some gas is heavier than air and will
settle on the floor.
8. Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.
• If control knob does not pop out
when released, contact a qualified
service person or gas supplier for
repairs.
2. Make sure equipment shutoff valve
is fully open.
3. Set switch to OFF position.
WHAT TO DO IF YOU SMELL
GAS
WARNING:Burnerswillcome
on automatically within one
minute when the selector switch
is in the ON position after the
pilot is lit.
• Do not try to light any appliance.
• Do not touch any electric 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 sup-
plier, call the fire department.
Note: If pilot goes out, repeat steps
4 through 8.
9. Slightly push in and turn control
knob counterclockwise
to
4. Press in and turn control knob clock-
the ON position.
wise
to the OFF position.
10. Wait one minute and switch selector
switch to the ON position to light
burners.
5. Wait five (5) minutes to clear out any
gas. Then smell for gas, including
near the floor. If you smell gas,
STOP! Follow “B” in the safety in-
formation. If you don’t smell gas, go
to the next step.
C. Use only your hand to push in or turn
the gas control knob. Never use tools.
If the knob will not push in or turn
by hand, don’t try to repair it, call a
qualified service technician or gas
supplier. Force or attempted repair
may result in a fire or explosion.
11. Set flame adjustment knob to any
level between HI and LO.
CAUTION:Donottrytoadjust
heatinglevelsbyusingtheequip-
ment shutoff valve.
6. Press in and turn control knob coun-
terclockwise
to the PILOT
D. Do not use this appliance if any part
has been under water. Immediately
call a qualified service technician to
inspect the appliance and to replace
any part of the control system and
any gas control which has been un-
der water.
position. Press in control knob for
five (5) seconds (see Figure 25).
Ignitor Button
AUTO
OFF
ON
O
O
Control Knob
Flame Adjustment
Knob
Selector Switch
Figure 25 - Control Knob and Ignitor Button Location (Shown as Supplied,
No Control Options)
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OWNER’S MANUAL
1. After lighting, let pilot flame burn for
OPTIONAL REMOTE
OPERATING
about one minute. Turn control knob
to ON position.Adjust flame adjust-
ment knob anywhere between HI
and LO. Slide the selector switch to
the REMOTE position (see Figure
27). Note: The burners may light if
hand-held remote ON button was on
when selector switch was last turned
off.You can now turn the burners on
and off with the hand-held remote
control unit.
IMPORTANT: Do not leave the selec-
tor switch in the REMOTE position
when the pilot is not lit.This will drain
the battery.
IMPORTANT: Be sure to press the
ON/OFF buttons on the hand-held
remote control unit for up to 3 sec-
onds to assure proper operation.
OPERATION
FIREPLACE
Note:Allremotecontrolaccessoriesmust
be purchased separately (see Accessories,
pages 22 and 23). Follow instructions in-
cluded with the remote control.
Continued
WARNING: Make sure the
selector switch is in the OFF po-
sition when you are away from
home for long periods of time.
Heater will come on automati-
cally with selector switch in the
ON position.
Thermostat Control Operation
(OptionalGHRCTSeriesOnly)Thether-
mostat control setting on the remote con-
trol unit can be set to any comfort level
between WARMER and COOLER. The
burners will turn on and off automati-
cally to maintain the comfort level you
select. The ideal comfort setting will vary
byhouseholddependingupontheamount
of space to be heated, the output of the
central heating system, etc.
Pilot Burner
Ignitor
Electrode
For wall thermostat operation, follow in-
struction supplied with thermostat acces-
sory GWMT1. For wall switch operation
followinstructionssuppliedwithGWMS2.
GHRC Series Operation:
Figure 26 - Pilot
2a. Press the ON/OFF button to turn the
burner on and off. When turning
burner off, the pilot will remain lit.
TO TURN OFF GAS
TO APPLIANCE
NOTICE: You must light the pilot
before using the hand-held re-
mote control unit. See Lighting
Instructions on page 14.
GHRCT Series Operation:
Shutting Off Heater
1. Turn control knob clockwise
to the OFF position.
2b. Press the AUTO/ON/OFF button on
the hand-held remote control (see
Figure 28, page 16). The lights to the
left of the button will show AUTO,
ON, or OFF.
2a. Set selector switch in the OFF position.
2b. If Using Optional Hand-Held Re-
mote: Set selector switch in the OFF
position to keep from draining battery.
Flame Adjustment Knob
Shutting Off Burners Only (pilot
stays lit)
You may shut off the burners and keep
the pilot lit by doing one of the following:
F
F
ON
OFF
REMOTE
O
• Turn control knob clockwise
to the PILOT position.
• Use remote control manual OFF button.
• Set selector switch in the OFF position.
Control Knob in
On Position
Selector Switch in Remote Position
(Optional Remote Control)
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 6 under Light-
Figure 27 - Setting the Selector Switch, Control Knob, and Flame
Adjustment Knob for Remote Operation
ing Instructions, page 14.
2. Depress control knob and light pilot
with match.
3. Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob. Now
follow steps 9 through 11 under
Lighting Instructions, page 14.
Continued
105269
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®
UNVENTED NATURAL GAS FIREPLACE
OPTIONAL BLOWER
OPERATING
INSPECTING
OPERATION
FIREPLACE
BURNERS
Check pilot flame pattern and burner flame
patterns often.
Continued
Locatetheblowerswitchbyopeninglower
louver on fireplace. Blower switch is lo-
cated at lower right inside louver door.
• In the ON mode, the burners will
ignite. The heater is in manual
mode when ON is lit.
PILOT FLAME PATTERN
Figure29showsacorrectpilotflamepattern.
Figure 30 shows an incorrect pilot flame
pattern. The incorrect pilot flame is not prop-
erly heating the thermocouple. When the
thermocouplecools,theheaterwillshutdown.
The GA3700T Series thermostat-con-
trolled blower has a variable speed con-
trol with an ON/OFF switch. The blower
will start when the thermostat senses a
sufficient increase in firebox temperature.
The GA3700 variable speed blower also
hasanON/OFFswitchbuiltintothevari-
able speed control.
• In theAUTO mode, the thermostat
in the hand-held remote unit con-
trols the room temperature. To in-
crease the room temperature, press
the top arrow of the TEMP button.
To lower the room temperature,
press the bottom arrow of the
TEMP button. At higher settings
the heater will run longer.
IMPORTANT:This remote control
has been specially engineered to
take an air temperature sample ev-
ery minute in the auto mode. It will
not respond immediately to the
temperature setting being turned
up or down.
IMPORTANT: The hand-held re-
mote control unit must be near the
heater. Do not keep the hand-held
remote control unit too close to the
heater. The thermostat on the
hand-held remote control unit will
heat up too quickly and turn the
heater off.
If pilot flame pattern is incorrect, as shown
in Figure 30
• turn heater off (see To Turn Off Gas to
Note for GA3700T Series Only: If you
are using GA3700T blower, your fire-
place and blower will not turn on and off
at the same time. The fireplace may run
for several minutes before the blower
turns on. After the heater modulates to
the pilot position, the blower will con-
tinuetorun.Theblowerwillshutoffafter
the firebox temperature decreases.
Appliance, page 15)
•
see Troubleshooting, pages 17 through 19
Pilot Burner
Thermocouple
Note: It is safe to operate fireplace with
blowerturnedoff.However,theblowerhelps
distribute heated air from the fireplace.
Figure 29 - Correct Pilot Flame Pattern
Pilot Burner
Thermocouple
Follow installation instructions included
with the blower accessory.
3. To turn the burner off, press the
AUTO/ON/OFF button until OFF
lights. The pilot will remain lit.
Figure 30 - Incorrect Pilot Flame Pattern
IMPORTANT: To turn the pilot off,
manually turn the control knob on the
heater to the OFF position.
BURNER PRIMARY AIR
HOLES
Air is drawn into the burner through the
holes in the fitting at the burner entrance.
These holes may become blocked with dust
or lint. Periodically inspect these holes for
any blockage and clean if needed. Blocked
air holes will create soot.
Increases Room
Temperature in AUTO
Mode
Shows Temperature
Setting
Decreases Room
Temperature in AUTO
Mode
The Log Heater will
Automatically Cycle
between Pilot and the
Heat Setting that has
been Selected
MAIN BURNER
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flame present. All round burner flame holes
should be open with a small blue flame
present. Some burner flame holes may be-
comeblockedbydebrisorrust,withnoflame
present. If so, turn off heater and let cool.
Either remove blockage or replace burner.
Blocked burner flame holes will create soot.
Turns Burners On or Off
and Allows You to
Choose the Auto Setting
Figure 28 - Thermostat Hand-Held Remote Control Unit Selections
(GHRCT Series Only)
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OWNER’S MANUAL
TROUBLESHOOTING
Note: For additional help, visit DESA
International’stechnicalservicewebsite
WARNING: Turn off heater
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot.ThiscandamageODS/
pilot unit.
andletcoolbeforeservicing.Only
aqualifiedservicepersonshould
service and repair heater.
Note:Alltroubleshootingitemsarelistedin
order of operation.
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
When ignitor button is pressed, there is no
spark at ODS/pilot
1. Ignitor electrode not connected to igni- 1. Reconnect ignitor cable
tor cable
2. Ignitor cable pinched or wet
2. Free ignitor cable if pinched by any
metal or tubing. Keep ignitor cable dry
3. Tighten nut holding piezo ignitor to base
panel of log set. Nut is located behind
base panel
3. Piezo ignitor nut is loose
4. Broken ignitor cable
4. Replace ignitor cable
5. Bad piezo ignitor
5. Replace piezo ignitor
6. Ignitor electrode broken
7. Ignitor electrode positioned wrong
6. Replace piezo ignitor
7. Replace piezo ignitor
When ignitor button is pressed, there is
spark at ODS/pilot but no ignition
1. Gas supply turned off or equipment 1. Turn on gas supply or open equipment
shutoff valve closed
shutoff valve
2. Control knob not in PILOT position
2. Turn control knob to PILOT position
3. Control knob not pressed in while in 3. Press in control knob while in PILOT
PILOT position
position
4. Air in gas lines when installed
4. Continue holding down control knob.
Repeat igniting operation until air is
removed
5. ODS/pilot is clogged
5. Clean ODS/pilot (see Cleaning and
Maintenance, page 21) or replace ODS/
pilot assembly
6. Gas regulator setting is not correct
1. Control knob not fully pressed in
6. Replace gas control
ODS/pilot lights but flame goes out when
control knob is released
1. Press in control knob fully
2. Control knob not pressed in long enough 2. After ODS/pilot lights, keep control
knob pressed in 30 seconds
3. Equipment shutoff valve not fully open 3. Fully open equipment shutoff valve
4. Pilot flame not touching thermocouple, 4. A) Contact local natural gas company
which allows thermocouple to cool,
causing pilot flame to go out. This prob-
lem could be caused by one or both of
the following:
B) Clean ODS/pilot (see Cleaning and
Maintenance, page 21) or replace ODS/
pilot assembly
A) Low gas pressure
B) Dirty or partially clogged ODS/pilot
5. Thermocouple connection loose at con- 5. Hand tighten until snug, then tighten
trol valve
1/4 turn more
6. Thermocouple damaged
6. Replace thermocouple
7. Control valve damaged
7. Replace control valve
Continued
105269
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UNVENTED NATURAL GAS FIREPLACE
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
Burner does not light after ODS/pilot is lit
1. Burner orifice clogged
1. Clean burner (see Cleaning and Mainte-
nance, page 21) or replace burner orifice
2. Contact local natural gas company
3. Replace burner orifice
2. Inlet gas pressure is too low
3. Burner orifice diameter is too small
4. Thermopile leads disconnected or im- 4. Reconnect leads (see Wiring Diagram,
properly connected page 20)
5. Burners will not come on in remote 5. Replace battery in transmitter and
position
receiver
Delayed ignition burner
1. Manifold pressure is too low
2. Burner orifice clogged
1. Contact local natural gas company
2. Clean burner (see Cleaning and Mainte-
nance, page 21) or replace burner orifice
Burner backfiring during combustion
1. Burner orifice is clogged or damaged
1. Clean burner (see Cleaning and Mainte-
nance, page 21) or replace burner orifice
2. Replace damaged burner
2. Damaged burner
3. Gas regulator defective
3. Replace gas control
Slight smoke or odor during initial operation 1. Not enough air
1. Check burner for dirt and debris. If
found, clean burner (see Cleaning and
Maintenance, page 21)
2. Gas regulator defective
2. Replace gas control
3. Residues from manufacturing processes 3. Problem will stop after a few hours of
and logs curing
operation
Moisture/condensationnoticedonwindows 1. Not enough combustion/ventilation air
1. Refer to Air for Combustion and Venti-
lation requirements (page 4)
Heater produces a whistling noise when 1. Turning control knob to HI position 1. Turn control knob to LO position and
burner is lit
when burner is cold
2. Air in gas line
let warm up for a minute
2. Operate burner until air is removed from
line. Have gas line checked by local
natural gas company
3. Air passageways on heater blocked
3. Observe minimum installation clear-
ances (see pages 8 through 10)
4. Dirty or partially clogged burner orifice 4. Clean burner (see Cleaning and Mainte-
nance, page 21) or replace burner orifice
Whitepowderresidueformingwithinburner 1. When heated, vapors from furniture pol- 1. Turn heater off when using furniture pol-
box or on adjacent walls or furniture
ish, wax, carpet cleaners, etc. turn into
ish, wax, cleaners, or similar products
white powder residue
Remote does not function (GHRC and 1. Battery is not installed. Battery power 1. Replace 9-volt batteries in receiver and
GHRCT only) is low remote control
105269
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OWNER’S MANUAL
TROUBLESHOOTING
Continued
WARNING: 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.
• Immediatelycallyourgassupplierfromaneighbor’sphone. Followthe
gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
IMPORTANT:Operatingfireplacewhereimpuritiesinairexistmaycreateodors.Cleaning
supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles,
etc., create fumes. These fumes may mix with combustion air and create odors. These odors
will disappear over time.
REMEDY
POSSIBLE CAUSE
OBSERVED PROBLEM
1. This is common with most fireplaces. If
noise is excessive, contact qualified ser-
vice person
1. Metal expanding while heating or con-
tracting while cooling
Fireplace produces a clicking/ticking noise
just after burners are lit or shut off
1. Open window and ventilate room. Stop
using odor causing products while fire-
place is running
1. Fireplace burning vapors from paint, hair
spray, glues, cleaners, chemicals, new
carpet, etc. (see IMPORTANT statement
above)
Fireplace produces unwanted odors
2. Locate and correct all leaks (see Check-
2. Gas leak. See Warning statement
above
ing Gas Connections, page 12)
1. Open window and/or door for ventilation
2. Contact local natural gas company
3. Clean ODS/pilot (see Cleaning and
Maintenance, page 21)
1. Not enough fresh air is available
2. Low line pressure
3. ODS/pilot is partially clogged
Fireplace shuts off in use (ODS operates)
1. Locate and correct all leaks (see Check-
ing Gas Connections, page 12)
2. Replace control valve
1. Gas leak. See Warning statement
above
2. Control valve defective
Gas odor even when control knob is in OFF
position
1. Take apart gas tubing and remove for-
eign matter
1. Foreign matter between control valve
Gas odor during combustion
and burner
2. Locate and correct all leaks (see Check-
ing Gas Connections, page 12)
2. Gas leak. See Warning statement
above
1. Properly locate logs (see Installing Logs,
page 13)
2. Eliminate source of drafts around heater
1. Improper log placement
Dark residue on logs or inside of fireplace
Note: After removing all causes of residue
deposits, completely clean fireplace and ap-
plianceofallresiduebeforereusingappliance.
2. Drafts or other air currents affecting
flame pattern
3. Clean out air holes at burner inlet. Peri-
odically repeat as needed
3. Air holes at burner inlet blocked
4. Remove blockage or replace burner
4. Burner flame holes blocked
105269
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UNVENTED NATURAL GAS FIREPLACE
WIRING DIAGRAM
Note: For proper operation of optional ac-
cessories, the wires from the switch to the
controlmustbeconnectedexactlyasshown.
REPLACEMENT
PARTS
Note: Use only original replacement parts.
Thiswillprotectyourwarrantycoveragefor
parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Techni-
cal Service Department at 1-800-323-5190.
When calling DESA International, have
ready
AUT
O
OFF
ON
• your name and address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane/LP or natural
gas)
Thermopile
• purchase date
Usually, we will ask you to return the defec-
tive part to the factory.
SPECIFICATIONS
PARTS NOT UNDER
WARRANTY
VYGF33NRA Remote Ready
Btu (Variable)
20,000/30,000
Type Gas
Natural Gas Only
Piezo
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Parts
Department at 1-800-972-7879 for referral
information. When calling DESA Interna-
tional, have ready
Ignition
Pressure Manifold
Inlet Gas Pressure (in. of water)
Maximum
3.5" W.C.
10.5"
5"
Minimum*
• model number of your heater
• the replacement part number
Shipping Weight
* For input adjustment
122 lbs.
TECHNICAL
SERVICE
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
You may have further questions about in-
stallation, operation, or troubleshooting.
If so, contact DESA International’s Techni-
calServiceDepartmentat1-800-DESALOG
(1-800-337-2564).
• burners will have delayed ignition
• heater will not produce specified heat
You can also visit DESA International’s
technical services web site at
When Gas Quality Is Bad
• pilot will not stay lit
• burners will produce flames and soot
• heater will backfire when lit
You may feel your gas pressure is too low
or gas quality is bad. If so, contact your
local natural gas supplier.
105269
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OWNER’S MANUAL
4. Check the injector holder located at the
LOGS
CLEANING AND
MAINTENANCE
end of the burner tube again. Remove
any large particles of dust, dirt, lint, or
pet hair with a soft cloth or vacuum
cleaner nozzle.
• If you remove logs for cleaning, refer to
Installing Logs, page 13, to properly re-
place logs.
WARNING: Turn off heater
and let cool before cleaning.
• Replace log(s) if broken or chipped
(dime-sized or larger).
5. Blow air into the primary air holes on
the injector holder.
6. In case any large clumps of dust have MAIN BURNER
CAUTION:Youmustkeepcon-
trol areas, burner, and circulating
air passageways of heater clean.
Inspect these areas of heater be-
fore each use. Have heater in-
spected yearly by a qualified ser-
vice person. Heater may need
more frequent cleaning due to
excessive lint from carpeting, pet
hair, bedding material, etc.
now been pushed into the burner repeat
Periodically inspect all burner flame holes
steps 3 and 4.
with the heater running. All slotted burner
flame holes should be open with yellow
flame present. All round burner flame holes
should be open with a small blue flame
present. Some burner flame holes may be-
come blocked by debris or rust, with no
flame present. If so, turn off heater and let
cool. Either remove blockage or replace
burner. Blocked burner flame holes will
create soot.
Clean the pilot assembly also. A yellow tip
on the pilot flame indicates dust and dirt in
the pilot assembly. There is a small pilot air
inlet hole about two inches from where the
pilot flame comes out of the pilot assembly
(see Figure 32). With the unit off, lightly
blow air through the air inlet hole. You may
blowthroughadrinkingstrawifcompressed
air is not available.
CLEANING BURNER
Injector Holder
INJECTOR HOLDER AND
PILOT AIR INLET HOLE
(May Be Brass
or Aluminum
Depending on
Burner
Tube
Model)
The primary air inlet holes allow the proper
amount of air to mix with the gas. This
provides a clean burning flame. Keep these
holes clear of dust, dirt, lint, and pet hair.
Clean these air inlet holes prior to each
heating season. Blocked air holes will cre-
ate soot. We recommend that you clean the
unit every three months during operation
and have heater inspected yearly by a quali-
fied service person.
Primary Air Inlet
Holes (Shape of
Holes May Vary
by Model)
Figure 31 - Injector Holder On Outlet
Burner Tube
Wealsorecommendthatyoukeeptheburner
tube and pilot assembly clean and free of
dustanddirt.Tocleanthesepartswerecom-
mend using compressed air no greater than
30 PSI. Your local computer store, hard-
ware store, or home center may carry com-
pressed air in a can. You can use a vacuum
cleaner in the blow position. If using com-
pressed air in a can, please follow the direc-
tions on the can. If you don't follow direc-
tions on the can, you coulddamage the pilot
assembly.
Ports/Slots
Burner
Tube
Pilot
Assembly
Pilot Air
Inlet
Hole
1. Shut off the unit, including the pilot.
Allow the unit to cool for at least thirty
minutes.
2. Inspect burner, pilot, and primary air
inlet holes on injector holder for dust
and dirt (see Figure 31).
3. Blow air through the ports/slots and
holes in the burner.
Figure 32 - Pilot Inlet Air Hole
105269
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®
UNVENTED NATURAL GAS FIREPLACE
ACCESSORIES
Purchase these fireplace accessories from
your local dealer. If they can not supply
theseaccessories,callDESAInternational’s
Sales Department at 1-800-432-2382 for
information. You can also write to the ad-
HARDWOOD HEARTH BASE
dress listed on the back page of this manual.
G3000F Series- Walnut Finished
G3001U Series - Unfinished
G3006F Series - Oak Finished
with Medium Stain
G3007U Series - Unfinished Oak
G3004W Series - Off White Finish
CORNER MANTEL
GM200F Series - Walnut Finished
GM201U Series - Unfinished
GM202F Series - Oak Finished
The hearth base can be used with the cabinet
mantels to create a handsome riser for the
fireplace(cannotbeusedwithcornermantel).
Dimensions(WxHxD):58"x61/2"x289/16"
Shown with optional laminate mantel trim
accessory.
CABINET MANTEL
Dimensions (WxHxD): 60 7/8" x 48 3/4" x 34 5/8
"
SLIM HEARTH BASE
(Not Shown)
GM100F Series - Walnut Finished
GM101U Series - Unfinished
GM106FSeries-OakFinishedwith
Medium Stain
GM107U Series - Unfinished
GM102W Series - Off White Paint
G3005J Series - Jade Marble
Laminate
G3005S Series - Sandstone
Marble Laminate
G3005B Series - Black Onyx
Marble Laminate
CORNER HEARTH BASE
Shown with optional base and laminate
hearth and mantel trim accessories.
Dimensions (WxHxD): 56 3/4" x 48 3/4" x 20 5/8
G3008F Series - Walnut Finished
G3009U Series - Unfinished
G3010F Series - Oak Finished
The slim hearth base allows you to further
customize your fireplace.
Dimensions (WxHxD): 41 7/8" x 5/8" x 10"
"
The corner hearth base is designed for use
with the corner mantels to create a hand-
some riser for the fireplace.
Dimensions (WxHxD): 52 1/2" x 6" x 23 3/4
"
BLOWER ACCESSORY
GA3700 SERIES AND
GA3700T SERIES
EQUIPMENT SHUTOFF
VALVE - GA5010
For all models. Equipment shutoff valve
with 1/8" NPT tap. Fits 1/2" NPT pipe.
Manual variable control and automatic ther-
mostat variable control. A blower will in-
creaseairflowtomaximizeheatdistribution.
105269
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OWNER’S MANUAL
WALL-MOUNT THERMOSTAT
SWITCH - GWMT1
(Not Shown)
W
ARMER
ACCESSORIES
COOLER
TEMP
AU
T
O
Continued
ON
OFF
For all models. The desired comfort setting
can be selected on the wall thermostat and
the log heater will automatically cycle from
pilot to the heat setting selected.
WALL-MOUNT ON/OFF
SWITCH - GWMS2
(Not Shown)
RECEIVER AND HAND-HELD
THERMOSTAT REMOTE
CONTROL KIT
For all models. Allows the gas log heater to
be turned on and off with a wall switch.
GHRCT SERIES
For all models. Allows the gas log heater to
be operated in a manually or thermostati- FIREBOX BRICK LINER
cally-controlled mode. You can turn the gas
log heater on and off without ever leaving
the comfort of your easy chair.
Ceramic fiber firebox liner adds the look of
real brick.
Mantel Trim
G8000 SERIES
(Not Shown)
Hearth Base Trim
BRASS TRIM ACCESSORY
GA6090
(Not Shown)
Included with accessory mantels.
DUPLEX OUTLET KIT
GA3555
(Not Shown)
RECEIVER AND HAND-HELD
REMOTE CONTROL KIT
GHRC SERIES
LAMINATE TRIM FOR
HEARTH OR MANTEL
For built-in installation when accessory
blowers are used.
G3002J Series - Jade Marble
Laminate Mantel Trim
G3003J Series - Jade Marble
Laminate Hearth Base Trim
For all models. Allows the gas log heater to
be turned on and off by using a hand-held
remote control.
G3002SSeries-SandstoneMarble
Laminate Mantel Trim
G3003SSeries-SandstoneMarble
Laminate Hearth Base Trim
G3002B Series - Black Onyx
Marble Laminate Trim
G3003B Series - Black Onyx
MarbleLaminateHearthBaseTrim
Mantel trim for cabinet, or corner mantel.
Hearth base trim for hardwood hearth
bases.
105269
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®
UNVENTED NATURAL GAS FIREPLACE
ILLUSTRATED
PARTS
BREAKDOWN
REMOTE READY MODEL
1
VYGF33NRA
2
4
3
6
7
5
8
9
14
15
4
27
10
28
13
16
21
22
I
H
L
O
O
F
F
N
O
T
I P
O
L
19
25
11
17
18
12
20
19
23
24
29
26
105269
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OWNER’S MANUAL
This list contains replaceable parts used in your fireplace. When ordering parts, follow the
instructions listed under Replacement Parts on page 20 of this manual.
PARTS LIST
REMOTE READY MODEL
VYGF33NRA
KEY
NO.
PART NUMBER
DESCRIPTION
QTY.
1
2
3
4
5
6
7
8
102785-03
103779-01
098249-01
100609-01
104229-01
102843-01
099056-26
102772-01
M11084-38
104236-01CK
M12461-26
104238-01CK
103284-03
098265-02
103782-01
103781-01
098271-03
102445-01
098304-01
099998-01
104241-01
103587-01CK
097809-02
101628-03
M50104-02
M11084-26
099918-02
099387-07
901063-01
Log, Golden Oak
ODS Pilot (NG)
ODS Nut
Pilot Tube (Regulator to Pilot)
Burner Outlet Tube
Burner Clip
1
1
2
1
1
1
1
2
2
1
4
1
1
1
1
1
1
1
7
1
1
1
1
1
1
4
1
1
1
Burner Orifice Injector
Burner
9
Screw, #8 x .38
Painted Base Assy
Screw, #10 x .32
Firebox Bottom
Wiring Harness
Elbow, Male
Valve Bracket
Gas Control Valve
Ignitor Cable
Piezo Ignitor
Screw
Switch
Remote Switch Bracket
Switch Plate
Male Connector
Flexible Connector (Hose)
Bushing
Screw, #10 x .38
Pilot Regulator
Pilot Tube (Valve to Regulator)
3/8" Flare x 1/2" NPT
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
PARTS AVAILABLE — NOT SHOWN
097555-01
104354-08
Caution Decal
Information Video
1
1
105269
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®
UNVENTED NATURAL GAS FIREPLACE
6
ILLUSTRATED
1
PARTS
BREAKDOWN
FIREPLACE
VYGF33NRA
7
2
4
10
3
9
9
12
14
14
14
9
13
5
14
15
8
16
14
11
105269
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OWNER’S MANUAL
This list contains replaceable parts used in your fireplace. When ordering parts, follow the
instructions listed under Replacement Parts on page 20 of this manual.
PARTS LIST
FIREPLACE
VYGF33NRA
KEY
NO.
PART NUMBER
DESCRIPTION
QTY.
1
2
3
4
5
6
7
8
101357-01
103207-01
Top Outer Casing
Outer Casing
1
1
1
1
9
1
1
2
4
1
1
1
1
45
1
1
102758-02CK
102759-02CK
098304-01
104239-01CK
101712-02
101348-01
099230-02
101872-03
101346-01CK
101838-03CJ
101514-01CK
M11084-26
104242-01CK
101727-03
Right Front Side
Left Front Side
Phillips Pan Head Screw, #10
Top Front Louver
Firebox Hood
Firebox Support
Shoulder Screw
Firebox Top
Outer Base
Firebox Wrapper
Cover
Hex Screw, #10
Bottom Louvered Door
Screen Assembly
9
10
11
12
13
14
15
16
PARTS AVAILABLE — NOT SHOWN
101386-02
101784-01
102307-01
Louvered Door Hinge
Magnet Catch
Strike Plate
2
2
2
105269
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WARRANTY INFORMATION
KEEP THIS WARRANTY
Model
Serial No.
Date Purchased
Always specify model and serial numbers when communicating with the factory.
We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written
warranty. We make no other warranty, expressed or implied.
LIMITED WARRANTY
VENT-FREE NATURAL GAS FIREPLACE
DESA International warrants this product to be free from defects in materials and components for four (4) years from the date of
first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable
instructions. To make a claim under this warranty the Bill of Sale or cancelled check must be presented.
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater
to proper operating condition and an allowance for labor when provided by a DESA Authorized Service Center. Warranty part(s)
MUST be obtained through authorized dealers of this product and/or DESA International who will provide original factory
replacementparts.Failuretouseoriginalfactoryreplacementpartsvoidsthiswarranty.TheheaterMUSTbeinstalledbyaqualified
installer in accordance with all local codes and instructions furnished with the unit.
This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that fail or become
damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by improper installation. Travel, diagnostic
cost, labor, transportation and any and all such other costs related to repairing a defective heater will be the responsibilityof the owner.
TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE
PRODUCT; THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND
LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTA-
BILITYANDFITNESSFORAPARTICULARPURPOSETOFOUR(4)YEARSONALLCOMPONENTSFROMTHEDATE
OF FIRST PURCHASE; AND DESA INTERNATIONAL’S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE
OF THE PRODUCT AND DESA INTERNATIONAL SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSO-
EVER INCLUDING INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or
consequential damages, so the above limitation on implied warranties, or exclusion or limitation on damages may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
For information about this warranty write:
INTERNATIONAL
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
105269-01
Rev. D
105269 01
09/00
NOT A UPC
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