VENT-FREE NATURAL GAS FREESTANDING
PEDESTAL STOVE SYSTEM
OWNER’S OPERATION AND INSTALLATION MANUAL
S39NT
20,000 to 39,000 Btu/Hr
Thermostatically-
Controlled
H
F
N
F
O
WARNING: Improper installation, ad-
justment, alteration, service, or main-
tenance can cause injury or property
damage. Refer to this manual for cor-
rectinstallationandoperationalproce-
dures. For assistance or additional in-
formation consult a qualified installer,
service agency, or the gas supplier.
WARNING: If the information in this manual is
not followed exactly, a fire or explosion may
result causing property damage, personal in-
jury, 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.
WARNING: This is an unvented gas-
fired heater. It uses air (oxygen) from
the room in which it is installed. Provi-
sions for adequate combustion and
ventilation air must be provided. Refer
to Air for Combustion and Ventilation
section on page 4 of this manual.
• 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 qualified installer, service agency, or the gas
supplier.
This appliance may be installed in an aftermarket,* permanently located, manufactured
(mobile) home, where not prohibited by local codes.
This appliance is only for use with 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
Sts r trr
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SAFETY INFORMATION
PRODUCT IDENTIFICATION
LOCAL CODES
3
SAFETY INFORMATION
Continued
13. Turn heater off and let cool before servicing. Only a qualified
service person should service and repair heater.
You must operate this heater with the heater screen
in place. Make sure heater screen is in place before
running heater.
14. Operating heater above elevations of 4,500 feet could cause
pilot outage.
15. Provide adequate clearances around air openings.
Keep the appliance area clear and free from combus-
tiblematerials, gasoline, andotherflammablevapors
and liquids.
PRODUCT IDENTIFICATION
1. This appliance is only for use with the type of gas indicated on
the rating plate. This appliance is not convertible for use with
other gases.
Stove
Cabinet
2. 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
Screen
• 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
3. This heater shall not be installed in a bedroom or bathroom.
4. Do not use this heater as a wood-burning heater. Use only the
logs provided with the heater.
Logs
5. Do not add extra logs or ornaments such as pine cones, ver-
miculite, or rock wool. Using these added items can cause soot-
ing. Do not add lava rock around base. Rock and debris could
fall into the control area of heater.
N
O
P
6. To prevent the creation of soot, follow the instructions in Clean-
ing and Maintenance, page 15.
7. Before using furniture polish, wax, carpet cleaners, or similar
products, turn heater off. If heated, the vapors from these prod-
ucts may create a white powder residue within burner box or
on adjacent walls or furniture.
Heater Controls
(Inside Door)
Figure 1 - Vent-Free Natural Gas Stove
8. This heater needs fresh, outside air ventilation to run properly.
This heater has an Oxygen Depletion Sensing (ODS) safety
shutoff system. The ODS shuts down the heater if not enough
fresh air is available. See Air for Combustion and Ventilation,
pages 4 through 6. If heater keeps shutting off, see Trouble-
shooting, pages 17 through 19.
LOCAL CODES
Install and use heater with care. Follow all local codes. In the absence
of local codes, use the latest edition of The National Fuel Gas Code,
ANSI Z223.1/NFPA 54*.
9. Do not run heater
*Available from:
• where flammable liquids or vapors are used or stored
• under dusty conditions
American National Standards Institute, Inc.
1430 Broadway
10. Do not use this stove to cook food or burn paper or other objects.
New York, NY 10018
11. Do not use heater if any part has been exposed to or under
water. Immediately call a qualified service technician to in-
spect the room heater and to replace any part of the control
system and any gas control which has been under water.
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
12. Do not operate heater if any log is broken. Do not operate
heater if a log is chipped (dime-sized or larger).
Thisheaterisdesignedforvent-freeoperation.Stateandlocalcodes
in some areas prohibit the use of vent-free heaters.
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UNPACKING
PRODUCT FEATURES
Safety Pilot
4
Piezo Ignition System
AIR FOR COMBUSTION AND VENTILATION
Providing Adequate Ventilation
UNPACKING
1. Remove top inner pack.
PROVIDING ADEQUATE VENTILATION
2. Tilt carton so that stove is upright.
3. Remove protective side packaging.
4. Slide stove out of carton.
The following are excerpts from National Fuel Gas Code ANSI
Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three following ventilation
classifications:
5. Remove protective plastic wrap.
6. Remove screen by lifting and then pulling forward.
7. Remove log set by cutting plastic ties.
8. Carefully unwrap log.
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
9. Check for any shipping damage. If stove or log is damaged,
promptly inform dealer where you bought stove.
The information on pages 4 through 6 will help you classify your
space and provide adequate ventilation.
Unusually Tight Construction
PRODUCT FEATURES
SAFETY PILOT
The air that leaks around doors and windows may provide enough
fresh air for combustion and ventilation. However, in buildings of
unusually tight construction, you must provide additional fresh air.
This heater has a pilot with an Oxygen Depletion Sensing (ODS)
safety shutoff system. The ODS/pilot is a required feature for vent-
free room heaters. The ODS/pilot shuts off the heater if there is not
enough fresh air.
Unusually tight construction is defined as construction
where:
a. walls and ceilings exposed to the outside atmosphere
have a continuous water vapor retarder with a rating
of one perm (6 x 10-11 kg per pa-sec-m2) or less with
openings gasketed or sealed and
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system requires no matches,
batteries, or other sources to light heater.
b. weather stripping has been added on openable win-
dows and doors and
c. caulking or sealants are applied to areas such as
joints around window and door frames, between sole
plates and floors,between wall-ceiling joints, between
wall panels, at penetrations for plumbing, electrical,
and gas lines, and at other openings.
AIR FOR COMBUSTION AND
VENTILATION
WARNING: This heater shall not be installed in a
confinedspaceorunusuallytightconstructionunless
provisionsareprovidedforadequatecombustionand
ventilation air. Read the following instructions to in-
sure proper fresh air for this and other fuel-burning
appliances in your home.
If your home meets all of the three criteria above, you
must provide additional fresh air. See Ventilation Air
From Outdoors, page 6.
If your home does not meet all of the three criteria above,
proceed to Determining Fresh-Air Flow For Heater Loca-
tion, page 5.
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.
Confined and Unconfined Space
The National Fuel Gas Code ANSI Z223.1/NFPA 54 defines a
confined space as a space whose volume is less than 50 cubic feet
per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating
of all appliances installed in that space and an unconfining space as
aspacewhosevolumeisnotlessthan50cubicfeetper1,000Btuper
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 which the appliances are installed*, through openings not
furnished with doors, are considered a part of the unconfined space.
While it is good to make your home energy efficient, your home
needs to breathe. Fresh air must enter your home. All fuel-burning
appliances need fresh air for proper combustion and ventilation.
Exhaust fans, heaters, clothes dryers, and fuel burning appliances
drawairfromthehousetooperate.Youmustprovideadequatefresh
air for these appliances. This will insure proper venting of vented
fuel-burning appliances.
* Adjoining rooms are communicating only if there are doorless
passageways or ventilation grills between them.
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AIR FOR COMBUSTION AND VENTILATION
Determining Fresh-Air Flow for Heater Location
5
AIR FOR COMBUSTION AND
VENTILATION
Continued
A. Rework worksheet, adding the space of an adjoining room. If the
extra space provides an unconfined space, remove door to adjoining
room or add ventilation grills between rooms. See Ventilation Air From
Inside Building, page 6.
DETERMINING FRESH-AIR FLOW FOR
HEATER LOCATION
Determining if You Have a Confined or
Unconfined Space
B. Vent room directly to the outdoors. See Ventilation Air From Out-
doors, page 6.
Use this work sheet to determine if you have a confined or unconfined space.
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.
Space:Includestheroominwhichyouwillinstallheaterplusanyadjoining
rooms with doorless passageways or ventilation grills between the rooms.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support,
thespaceisanunconfinedspace.Youwillneednoadditionalfreshairventilation.
1. Determine the volume of the space (length x width x height).
Length x Width x Height = ___________ cu. ft. (volume of space)
WARNING: If the area in which the heater may be
operated is smaller than that defined as an uncon-
fined space or if the building is of unusually tight
construction,provideadequatecombustionandven-
tilation air by one of the methods described in the
National Fuel Gas Code, ANSI Z223.1/NFPA 54, Sec-
tion 5.3 or applicable local codes.
Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling
height) = 2560 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or open-
ings, add the volume of these rooms to the total volume of the space.
2. Multiply the space volume by 20 to determine the maximum Btu/Hr
the space can support.
__________ (volume of space) x 20 = (Maximum Btu/Hr the space
can support)
Example: 2560 cu. ft. (volume of space) x 20 = 51,200 (maximum
Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free heater
Gas water heater*
Gas furnace
_____________ Btu/Hr
_____________ Btu/Hr
_____________ Btu/Hr
_____________ Btu/Hr
_____________ Btu/Hr
Vented gas heater
Gas fireplace logs
Other gas appliances* + _____________ Btu/Hr
Total = _____________ Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws com-
bustion air from the outdoors and vents to the outdoors.
Example:
30,000
_____________ Btu/Hr
39,000
+ _____________ Btu/Hr
69,000
= _____________ Btu/Hr
Gas water heater
Vent-free heater
Total
4. Compare the maximum Btu/Hr the space can support with the actual
amount of Btu/Hr used.
__________________ Btu/Hr (maximum the space can support)
__________________ Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 Btu/Hr (maximum the space can support)
69,000 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:
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AIR FOR COMBUSTION AND VENTILATION
Ventilation Air
INSTALLATION
6
AIR FOR COMBUSTION AND
VENTILATION
Continued
Ventilated
Attic
VENTILATION AIR
Outlet
Air
Ventilation Air From Inside Building
Outlet
Air
This fresh air would come from an adjoining unconfined space.
When ventilating to an adjoining unconfined space, you must
provide two permanent openings: one within 12" of the ceiling and
one within 12" of the floor on the wall connecting the two spaces
(see options 1 and 2, Figure 2). You can also remove door into
adjoining room (see option 3, Figure 2). 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.
To Attic
To
Crawl
Space
Inlet
Air
Ventilation Air From Outdoors
Ventilated
Crawl Space
Inlet Air
Provide extra fresh air by using ventilation grills or ducts. You must
provide two permanent openings: one within 12" of the ceiling and
one within 12" of the floor. Connect these items directly to the
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.
Figure 3 - Ventilation Air from Outdoors
INSTALLATION
NOTICE: This heater is intended for use as supple-
mental heat. Use this heater along with your primary
heating system. Do not install this heater as your
primary heat source. If you have a central heating
system, you may run system’s circulating blower
while using heater. This will help circulate the heat
throughoutthehouse. Intheeventofapoweroutage,
you can use this heater as your primary heat source.
IMPORTANT: Do not provide openings for inlet or outlet air
into attic if attic has a thermostat-controlled power vent. Heated
air entering the attic will activate the power vent.
12"
Ventilation
WARNING: A qualified service person must in-
stall heater. Follow all local codes.
Ventilation Grills
Into Adjoining Room,
Option 2
Grills
Into Adjoining
Room,
Or
Remove
Door into
Adjoining
Room,
Option
3
Option 1
WARNING: Never install the heater
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture, clothing, or other flam-
mable objects are less than 42 inches from the
front, top, or sides of the heater
• in high traffic areas
12"
• in windy or drafty areas
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CAUTION: This heater creates warm air currents.
These currents move heat to wall surfaces next to
heater. Installing heater next to vinyl or cloth wall
coveringsoroperatingheaterwhereimpurities(such
as, but not limited to, tobacco smoke, aromatic
candles, cleaning fluids, oil or kerosene lamps, etc.)
in the air exist, may discolor walls or cause odors.
Figure 2 - Ventilation Air from Inside Building
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INSTALLATION
Check Gas Type
Clearances to Combustibles
Connecting to Gas Supply
7
INSTALLATION
Continued
IMPORTANT: Vent-free heaters add moisture to the air. Although
this is beneficial, installing heater in rooms without enough venti-
lation air may cause mildew to form from too much moisture. See
Air for Combustion and Ventilation, pages 4 through 6.
CONNECTING TO GAS SUPPLY
WARNING: A qualified service person must con-
nect heater to gas supply. Follow all local codes.
CHECK GAS TYPE
Installation Items Needed
Useonlynaturalgas.Ifyourgassupplyisnotnaturalgas,donotinstall
heater. Call dealer where you bought heater for proper type heater.
Before installing heater, make sure you have the items listed below.
• piping (check local codes)
• sediment trap
CLEARANCES TO COMBUSTIBLES
(Vent-Free Operation Only)
• sealant (resistant to propane/LP gas) • tee joint
• equipment shutoff valve *
• test gauge connection *
• pipe wrench
WARNING: Maintain the minimum clearances. If
you can, provide greater clearances from floor, ceil-
ing, and adjoining side and back walls.
* 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 24.
Carefully follow the instructions below. This stove is a freestanding
unit designed to set directly on the floor. IMPORTANT: You must
maintain minimum wall and ceiling clearances during installation.
The minimum clearances are shown in Figure 4. Measure from
outermost point of stove top.
Side View
Back View
Front of
Stove Unit
Minimum Wall and Ceiling Clearances (see Figure 4)
Gas Regulator
Inlet Connection
A. Clearances from outermost point of stove top to any combus-
tible side wall should not be less than 12 inches.
B. Clearances from outermost point of stove top to any combus-
tible back wall should not be less than 6 inches (Includes cor-
ner installations).
Figure 5 - Gas Regulator Location and Gas Line Access Into
Stove Cabinet
C. Clearances from the stove top to the ceiling should not be less
than 48 inches.
Top View
Back Wall
Front View
Ceiling
6
"
Minimum
Side View
Ceiling
12
"
12
"
48"
Minimum
Minimum
Minimum
Side Wall
Corner
Side Wall
12"
Minimum
12"
Minimum
Side Wall
Side Wall
48"
Minimum
Wall
Back Wall
6"
Minimum
6
"
Minimum
Front of
Stove Unit
6
"
Wall
Minimum
Floor
Figure 4 - Minimum Clearance to Walls and Ceiling
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INSTALLATION
Connecting to Gas Supply (Cont.)
Checking Gas Connections
8
INSTALLATION
Continued
We recommend that you install a sediment trap in supply line as
shown in Figure 6. Locate sediment trap where it is within reach for
cleaning. Install in piping system between fuel supply and heater.
Locate sediment trap where trapped matter is not likely to freeze. A
sediment trap traps moisture and contaminants. This keeps them
from going into heater controls. If sediment trap is not installed or
is installed wrong, heater may not run properly.
WARNING: Never connect heater to private (non-
utility) gas wells. This gas is commonly known as
wellhead gas.
CAUTION: Use only new, black iron or steel pipe.
Internally-tinnedcoppertubingmaybeusedincertain
areas. Check your local codes. Use pipe of 1/2" diam-
eter or greater to allow proper gas volume to heater. If
pipe is too small, undue loss of volume will occur.
CAUTION: Avoid damage to regulator. Hold gas
regulator with wrench when connecting it to gas
piping and/or fittings.
Installation must include an equipment shutoff valve, union, and
plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge
hook up. NPT tap must be upstream from heater (see Figure 6).
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections
forleaksafterinstallingorservicing. Correctallleaks
at once.
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.
Apply pipe joint sealant lightly to male NPT threads. This will
prevent excess sealant from going into pipe. Excess sealant in pipe
could result in clogged heater valves.
WARNING: Never use an open flame to check for
a leak. Apply a noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak. Correct all leaks
at once.
WARNING: Use pipe joint sealant that is resistant
to liquid petroleum (LP) gas.
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
CSA Design-Certified
1. Disconnect appliance with its appliance main gas valve (control
valve) and equipment shutoff valve from gas supply piping sys-
tem. Pressures in excess of 1/2 psig will damage heater regulator.
Equipment Shutoff Valve
With 1/8" NPT Tap*
From Gas Meter
(5" W.C.** to
10.5" W.C.
Approved Flexible
Gas Hose (if allowed
by local codes)
2. Cap off open end of gas pipe where equipment shutoff valve
was connected.
Pressure)
3. Pressurize supply piping system by either using compressed
air or opening main gas valve located on or near gas meter.
4. Check all joints of gas supply piping system. Apply a noncor-
rosive leak detection fluid to gas joints. Bubbles forming show
a leak.
3" Minimum
Tee
Pipe
5. Correct all leaks at once.
Gas
Regulator
of Heater
Joint Nipple Cap
6. Reconnect heater and equipment shutoff valve to gas supply.
Check reconnected fittings for leaks.
Sediment Trap
Figure 6 - Gas Connection
* Purchase the optional CSA design-certified equipment shutoff
valve from your dealer. See Accessories, page 24.
**Minimum inlet pressure for purpose of input adjustment.
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INSTALLATION
Checking Gas Connections (Cont.)
Installing Logs
9
INSTALLATION
Continued
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
INSTALLING LOGS
1. Close equipment shutoff valve (see Figure 7).
WARNING: Failure to position the parts in accor-
dance with these diagrams or failure to use only parts
specifically approved with this heater may result in
property damage or personal injury.
2. Pressurize supply piping system by either using compressed
air or opening main gas valve located on or near gas meter.
3. Check all joints from gas meter to equipment shutoff valve (see
Figure 8).Apply a noncorrosive leak detection fluid to gas joints.
Bubbles forming show a leak.
4. Correct all leaks at once.
CAUTION:Afterinstallationandperiodicallythere-
after, check to ensure that no flame comes in contact
with any log. With the heater set to High, check to see
if flames contact any log. If so, reposition logs ac-
cording to the log installation instructions in this
manual. Flames contacting logs will create soot.
Pressure Testing Heater Gas Connections
1. Open equipment shutoff valve (see Figure 7).
2. Open main gas valve located on or near gas meter.
3. Make sure control knob of heater is in the OFF position.
4. Check all joints from equipment shutoff valve to control valve
(see Figure 8). Apply a noncorrosive leak detection fluid to
gas joints. Bubbles forming show a leak.
It is very important to install the logs exactly as instructed. Do not
modify logs. Only use logs supplied with heater.
5. Correct all leaks at once.
Place one-piece log set on grate to fit as illustrated in Figure 10.
Make sure log sits flat on firebox floor (see Figure 9).
IMPORTANT: Make sure log does not cover any burner ports (see
Figure 10).
6. Light heater (see Operating Heater, pages 13 and 14). Check
all other internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appliance, page 14).
ON
Open
Equipment
One Piece
Log Set
Shutoff Valve
Closed
F
T
Figure 7- Equipment Shutoff Valve
Firebox Floor
Equipment
Shutoff Valve
Figure 9 - Installing One-Piece Log Set
One Piece Log Set
Burner Ports
Gas Meter
Control Valve Location
Figure 10 - Installing One-Piece Log set (Top View)
Figure 8 - Checking Gas Joints
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INSTALLATION
Installing Optional Blower Accessory GA3750
10
INSTALLATION
Continued
INSTALLING OPTIONAL BLOWER
ACCESSORY GA3750
7. Remove the two blower mounting brackets from the rear panel
by removing two screws each (see Figure 14).
8. Attach the two mounting brackets to blower housing using four
screws provided in blower kit (2 for each bracket) (see Figure
14). Tighten screws securely. Place blower assembly tempo-
rarily on top of firebox.
Tools required: Phillips screwdriver
NOTICE:Shutoffgasheaterduringthefollowingblower
installation.
9. Working from the rear of the stove, place entire power cord,
including speed control housing, in lower control compartment.
1. Remove 2 screws from rear tabs on top trim. Pull trim forward
to remove (see Figure 11).
10. Route ends of 3-wire power cord up from the lower control com-
partment through the plastic bushing, then up to the upper cavity
of stove (see Figure 15, page 11).
2. Remove top panel of stove by removing three screws from
under top lip on each side of stove (see Figure 11).
3. Facing front of stove, carefully slide top panel forward until it
is completely removed from stove (see Figure 11).
4. Install one plastic bushing provided in blower kit into the 1 1/2"
hole in the left rear of firebox floor. Access hole through the
rectangular opening in the rear panel (see Figure 12).
11. Attach the terminal ends of the white and black power cord
wires to the terminals on the blower motor (see Figure 12).
Push firmly.
12. Attach the terminal end of the green power cord wire to the front
tab of the blower housing using screw provided (see Figure 13).
5. Disconnect power cord wires from blower motor (if connected)
(see Figure 13).
White
Powercord
Wire
6. Disconnect green ground wire from blower housing (if connected)
by removing screw holding wire terminal (see Figure 13).
Black
Powercord
Wire
Screws
Top Panel
Screw
Top Trim
Green
Ground Wire
Figure 13 - Removing Wires from Blower
Screws
Screws
I
H
L
O
Blower
F
O
L
Bracket
Figure 11 - Removing Stove Top Panel
Blower
Screws
Firebox Top
Bushing
Figure 12 - Installing Bushing
Figure14-RemovingBlowerBracketsfromStoveandAttaching
to Blower
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INSTALLATION
Installing Optional Blower Accessory GA3750 (Cont.)
Installing Optional Blower Accessory GA3650TA
11
INSTALLATION
Continued
13. Using the four screws previously removed, mount blower as-
sembly to stove by reattaching blower brackets to rear panel
(see Figure 14, page 10). Tighten screws securely.
14. Install plastic control knob onto output shaft of speed control
housing (see Figure 15). Place speed control housing just inside
control compartment door in front of stove (see Figure 16).
Blower Speed
Control Housing
15. Using two screws provided in blower kit, mount blower speed
control housing to mounting tab in left side of lower control
compartment (see Figure 16).
Figure 16 - Installing Blower Control Housing
16. Checktomakesurethatthepowercordiscompletelyclearofblower
wheel and there are no foreign objects in blower wheel.
INSTALLING OPTIONAL BLOWER
ACCESSORY GA3650TA
17. Carefully replace stove top panel. Align holes and replace six
screws removed in step 1, page 10. Slide top trim onto top
panel. Attach with two screws removed in step 1, page 10.
Tools required: Phillips screwdriver
18. Peel off the backing paper and stick the supplied wiring dia-
gram decal on the stove floor as shown in Figure 15.
NOTICE: Shut off gas heater during the following blower
installation.
19. Plug power cord into a convenient 3-prong grounded wall recep-
tacle near the stove.
1. Remove 2 screws from rear tabs on top trim. Pull trim forward
to remove (see Figure 11, page 10).
20. Using speed control knob, turn blower on and check for
operation.
2. Remove three screws from under top lip on each side of stove
to remove top panel (see Figure 11, page 10).
21. All remaining parts from blower kit may be discarded.
3. Facing front of stove, carefully slide top panel forward until
it is completely removed from stove (see Figure 11, page 10).
4. Install one plastic bushing provided in blower kit into the 1 1/2"
hole in the left rear of firebox floor. Access hole through the
rectangular opening in the rear panel (see Figure 12, page 10).
WARNING: ELECTRICAL GROUNDING
INSTRUCTIONS This appliance is equipped with a
three-prong (grounding) plug for your protection
against shock hazard and should be plugged directly
into a properly grounded three-prong receptacle.
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 service 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 im-
proper and dangerous operation. Verify proper opera-
tion after servicing.
Power Cord
Variable
Fan Switch
Off
On
110/115
V.A.C.
Blower
Motor
Wiring Diagram Decal
Black
Green
White
Black
White
Control
Knob
Speed Control
Housing
120 Vac. 60 Hz. . 78 Amps
DESA International, Bowling Green, KY
101584-05
Figure 15 - Routing Power Cord
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INSTALLATION
Installing Optional Blower Accessory GA3650TA (Cont.)
12
INSTALLATION
Continued
5. Disconnect power cord wires from blower motor (if connected) 15. Working from the rear of the stove, place entire power cord,
(see Figure 13, page 10).
including speed control housing, in lower control compartment
(see Figure 20).
6. Disconnect green ground wire from blower housing (if con-
nected) by removing screw holding wire terminal (see Figure 16. Route ends of 3-wire power cord up from the lower control com-
13, page 10).
partment through the plastic bushing, then up to the upper cavity
of stove (see Figure 20).
7. Remove the two blower mounting brackets from the rear panel
by removing two screws each (see Figure 14, page 10).
17. Connect white wire from speed control to either terminal on
blower motor (see Figure 20). Push firmly.
8. Attach the two mounting brackets to blower housing using four
screws provided in blower kit (2 for each bracket) (see Figure
14, page 10). Tighten screws securely. Place blower assembly
temporarily on top of firebox.
Wire Harness
Thermostatic
Switch
9. If screen is installed, carefully lift slightly and pull forward
to remove.
Mounted to
Cover
10. If logs are installed, carefully remove and set aside.
11. Remove three screws and cover plate from center of firebox back
panel. Keep screws but discard cover plate (see Figure 17).
Screws
12. Locate thermostatic switch/cover plate assembly and wire har-
ness supplied with blower. Attach wire harness terminals to
terminals on thermostatic switch. Push firmly. Make sure the
bottom hole of cover is on the opposite side from the wire
harness (see Figure 18).
Hole in Firebox
Back Panel
Wire
Harness
Figure 19 - Assembling Thermostatic Switch and Cover to
Firebox Back Panel
13. Feed terminal ends of wire harness into the hole in firebox
back panel from front of firebox. Pull the ends of the harness
to the top of firebox near blower (see Figure 19).
14. Align holes in the switch/cover assembly with holes in firebox
back panel. Using 3 screws from step 11, attach assembly to
firebox back panel. Tighten screws firmly (see Figure 19).
Black Speed
White Speed
Control Wire
Control Wire
Power Cord
Green Ground Wire
Blower
Cover
Plate
Firebox Back
Panel
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 service or repair heater.
Ground
Wire
Screw
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.
Screws
Blue
Switch
Wire
WARNING: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause im-
proper and dangerous operation. Verify proper operation
after servicing.
Figure 17 - Removing Cover Plate
Red Switch
Wire
Variable
Fan Switch
(N.O.)
Fan Switch
1
Off
Black
On
2
Blue
Lower Hole
Thermostatic Switch
Mounted to Cover
Red
110/115
V.A.C.
Black
Green
White
Blower
Motor
120 Vac. 60 Hz. 90 Amps
DESA International, Bowling Green, KY
Wiring Diagram Decal
Wire Harness
Speed Control
Housing
Control
Knob
Figure 18 - Attaching Wire Harness to Thermostatic Switch and
Cover Assembly
Figure 20 - Connecting Switch, Blower, and Speed Control
Wires
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INSTALLATION
Installing Optional Blower Accessory GA3650YA (Cont.)
OPERATING HEATER
13
For Your Safety Read Before Lighting
Lighting Instructions
OPERATING HEATER
INSTALLATION
Continued
FOR YOUR SAFETY
18. Connect the black wire from speed control to blue wire on
switch/cover assembly (see Figure 20, page 12).
READ BEFORE LIGHTING
19. Connect red wire from switch/cover assembly to remaining
terminal on blower motor (see Figure 20, page 12). Push firmly.
WARNING: If you do not follow these instructions
exactly, a fire or explosion may result causing prop-
erty damage, personal injury or loss of life.
20. Attach green wire from speed control to front tab of blower
housing using screw provided (see Figure 20, page 12).
Tighten securely.
A. This appliance has a pilot which must be lighted by hand.
When lighting the pilot, follow these instructions exactly.
21. Using the four screws previously removed, mount blower as-
sembly to stove by reattaching blower brackets to rear panel
(see Figure 14, page 10). Tighten screws securely.
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.
22. Install plastic control knob onto output shaft of speed control
housing (see Figure 20, page 12). Place speed control hous-
ing just inside control compartment door in front of stove
(see Figure 16, page 11).
WHAT TO DO IF YOU SMELL GAS
• 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 supplier, call the fire
department.
23. Using two screws provided in blower kit, mount blower speed
control housing to mounting tab in left side of lower control
compartment (see Figure 16, page 11).
24. Checktomakesurethatthepowercordiscompletelyclearofblower
wheel and there are no foreign objects in blower wheel.
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 techni-
cian or gas supplier. Force or attempted repair may result
in a fire or explosion.
25. Carefully replace stove top panel. Align holes and replace six
screws removed in step 1, page 11. Slide top trim over sides of
top panel. Attach with 2 screws removed in step 1, page 11.
26. Peel off the backing paper and stick the supplied wiring dia-
gram decal on the stove floor as shown in Figure 20, page 12.
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 under water.
27. Plug power cord into a convenient 3-prong grounded wall recep-
tacle near the stove.
WARNING: ELECTRICAL GROUNDING
INSTRUCTIONS
Thisapplianceisequippedwithathree-prong(ground-
ing) plug for your protection against shock hazard
and should be plugged directly into a properly
grounded three-prong receptacle.
LIGHTING INSTRUCTIONS
NOTICE:Duringinitialoperationofnewheater,burning
logs will give off a paper-burning smell. Orange flame
will also be present. Open a window to vent smell. This
will only last a few hours.
28. Using speed control knob, turn blower on and check for
operation.
1. STOP! Read the safety information, above.
2. Make sure equipment shutoff valve is fully open.
Clockwise
29. Install logs (see Installing Logs, page 9).
30. Install screen assembly by aligning keyhole slots in screen
assembly and shoulder screws on stove. Push back and down
to secure.
3. Turn control knob clockwise
to the OFF position.
4. Wait five (5) minutes to clear out any gas. Then smell for
gas, including near the floor. If you smell gas, STOP! Fol-
low “B” in the safety information, above. If you don’t smell
gas, go to the next step.
31. All remaining parts from blower kit may be discarded.
Note: If any of the origianl wire, as supplied with the appliance, must
be replaced, it must be replaced with 105°C wire or it’s equivalent.
5. Turn control knob counterclockwise
to the PILOT
C-clockwise
position. Press in control knob for five (5) seconds (see Fig-
ure 21, page 14). Note:You may be running this heater for
the first time after hooking up to gas supply. If so, the con-
trol knob may need to be pressed in for 30 seconds or more.
This will allow air to bleed from the gas system.
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OPERATING HEATER
Lighting Instructions (Cont.)
To Turn Off Gas to Appliance
Thermostat Control Operation
Manual Lighting Procedure
Operating Optional Blower Accessory
14
OPERATING HEATER
Continued
6. With control knob pressed in, press and release ignitor but-
ton. This will light pilot. The pilot is attached to the front
burner. If needed, keep pressing ignitor button until pilot lights.
THERMOSTAT CONTROL
OPERATION
Thethermostatcontrolknobcanbesettoanycomfortlevelbetween
Hi and Lo. The thermostat will gradually modulate the heat output
and flame height from higher to lower settings, or pilot, in order to
maintain the comfort level you select. The ideal comfort setting will
varybyhouseholddependingupontheamountofspacetobeheated,
the output of the central heating system, etc.
Note: If pilot does not stay lit, contact a qualified service
person or gas supplier for repairs. Until repairs are made,
light pilot with match. To light pilot with match, see Manual
Lighting Procedure.
7. Keep control knob pressed in for 30 seconds after lighting
pilot. After 30 seconds, release control knob.
Note: Selecting the Hi setting with the control knob will cause
the burners to remain fully on, without modulating down in
most cases.
• If control knob does not pop out when released, contact a
qualified service person or gas supplier for repairs.
Note: If pilot goes out, repeat steps 3 through 7. This heater
has a safety interlock system. Wait one (1) minute for sys-
tem to reset before lighting pilot again.
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 5 under Lighting Instructions, page 13.
C-clockwise
8. Turn control knob counterclockwise
to desired heat-
ing level. The burners should light. Set control knob to any
heat level between HI and LO.
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
step 8 in column 1.
Ignitor Button
Control Knob
OPERATING OPTIONAL
BLOWER ACCESSORY
Figure 21 - Control Knob and Ignitor Button Location
Light your gas appliance with the blower off. 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.
Ignitor Electrode
Thermocouple
Pilot Burner
If using the GA3650TA Blower Accessory: In the ON position,
the blower will start when the thermostat senses a sufficient
increase in firebox temperature (approximately 10 to 20 min-
utes depending on heat setting). Note: Your gas stove and
thermostatblowerwillnotturnonandoffatthesametime. The
stove may run for several minutes before the blower turns on.
After the heater modulates to the pilot position, the blower will
continue to run. The blower will shut off after the firebox
temperature decreases.
Figure 22 - Pilot
CAUTION: Do not try to adjust heating levels by
using the equipment shutoff valve.
Note: It is safe to operate stove with blower turned off. How-
ever, the blower helps distribute heated air from the stove.
TO TURN OFF GAS TO
APPLIANCE
Note: Periodically check the louvers of the firebox and remove
any dust, dirt, or other obstructions.
Shutting Off Heater
Turn control knob clockwise
to the OFF position.
Clockwise
Shutting Off Burners Only (pilot stays lit)
Turn control knob clockwise
to the PILOT position.
Clockwise
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INSPECTING BURNERS
pilot Flame Pattern
15
Burner Flame Pattern
CLEANING AND MAINTENANCE
Cleaning Burner Injector Holder and Pilot Air Inlet Hole
INSPECTING BURNERS
Check pilot flame pattern and burner flame patterns often.
CLEANING AND
MAINTENANCE
PILOT FLAME PATTERN
WARNING: Turn off heater and let cool before
cleaning.
Figure 23 shows a correct pilot flame pattern. Figure 24 shows an
incorrect pilot flame pattern. (Note: Appearance of pilot assembly
may vary by model). The incorrect pilot flame is not touching the
thermocouple. This will cause the thermocouple to cool. When the
thermocouple cools, the heater will shut down.
CAUTION: You must keep control areas, burner, and
circulating air passageways of heater clean. Inspect
these areas of heater before each use. Have heater
inspected yearly by a qualified service person. Heater
may need more frequent cleaning due to excessive lint
from carpeting, bedding material, pet hair, etc.
If pilot flame pattern is incorrect, as shown in Figure 24
• turn heater off (see To Turn Off Gas to Appliance, page 14)
• see Troubleshooting, pages 17 through 19
Note: The pilot flame on the natural gas units will have a slight
curve but flame should be blue and have no yellow or orange color.
CLEANING BURNER INJECTOR HOLDER
AND PILOT AIR INLET HOLE
Thermocouple
Thermocouple
Pilot Burner
Pilot Burner
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
heatingseason.Blockedairholeswillcreatesoot.Werecommendthat
youcleantheuniteverythreemonthsduringoperationandhaveheater
inspected yearly by a qualified service person.
We also recommend that you keep the burner tube and pilot assembly
clean and free of dust and dirt. To clean these parts we recommend
using compressed air no greater than 30 PSI. Your local computer
store, hardware store, or home center may carry compressed air in a
can. You can use a vacuum cleaner in the blow position. If using
compressedairinacan, pleasefollowthedirectionsonthecan. Ifyou
don't follow directions on the can, you could damage the pilot
assembly.
Figure23-CorrectPilotFlame Figure24 -IncorrectPilotFlame
Pattern
Pattern
BURNER FLAME PATTERN
Figure 25 shows a correct burner flame pattern. Figure 26 shows an
incorrect burner flame pattern. If burner flame pattern is incorrect,
• turn heater off (see To Turn Off Gas to Appliance, page 14)
• see Troubleshooting, pages 17 through 19
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 27).
Approx. 3-6" Above
Top of Logs
3. Blow air through the ports/slots and holes in the burner.
4. Check the injector holder located at the 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.
5. Blow air into the primary air holes on the injector holder.
Figure 25 - Correct Flame Pattern with Control Knob Set to High
Flame
6. In case any large clumps of dust have now been pushed into
the burner repeat steps 3 and 4.
Burner Tube
More Than 8"
Injector Holder
Above Top of Logs
Primary Air Inlet Holes
Figure 27 - Injector Holder On Outlet Burner Tube
Figure 26 - Incorrect Flame Pattern with Control Knob Set to
High Flame
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CLEANING AND MAINTENANCE
SPECIFICATIONS
SERVICE HINTS
16
TECHNICAL SERVICE
CLEANING AND
SPECIFICATIONS
MAINTENANCE
Btu (Variable)
Type Gas
20,000/39,000
Natural Only
Piezo
Continued
Ignition
Manifold Pressure
Inlet Gas Pressure
(in. of water) *
Maximum
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 28). With the unit off, lightly blow
airthroughtheairinlethole.Youmayblowthroughadrinkingstraw
if compressed air is not available.
3.5" W.C.
10.5"
5"
Minimum
Dimensions, Inches (H x W x D)
31 x 32 x 19 1/4
24 x 31 1/2 x 35 1/4
Ports/Slots
Stove
Carton
Burner
Tube
Weight, pounds
Stove
78 lbs.
95 lbs.
Pilot
Assembly
Shipping
* For purposes of input adjustment
Pilot Air
Inlet
Hole
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
• natual gas supply may be low
Figure 28 - Pilot Inlet Air Hole
CABINET
Air Passageways
• Use a vacuum cleaner or pressurized air to clean.
You may feel your gas pressure is too low. If so, contact your local
natural gas supplier.
Exterior
TECHNICAL SERVICE
You may have further questions about installation, operation, or
troubleshooting. If so, contact DESA International’s Technical Ser-
viceDepartmentat1-866-672-6040.Whencalling,pleasehaveyour
• Use a soft cloth dampened with a mild soap and water mixture.
Wipe the cabinet to remove dust.
LOGS
• If you remove logs for cleaning, refer to Installing Logs, page 9, model and serial numbers of your heater ready.
to properly replace logs.
• Replace log(s) if broken or chipped (dime-sized or larger).
You can also visit DESA International’s technical services web site
MAIN BURNER
Periodicallyinspectallburnerflameholeswiththeheaterrunning.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 become blocked by debris or
rust, with no flame present. If so, turn off heater and let cool. Remove
blockage. Blocked burner flame holes will create soot.
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TROUBLESHOOTING
17
TROUBLESHOOTING
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot.ThiscandamageODS/
pilot unit.
WARNING: Turn off heater
andletcoolbeforeservicing.Only
aqualifiedservicepersonshould
service and repair heater.
Note: For additional help, visit DESA
International’stechnicalservicewebsite
Note:Alltroubleshootingitemsarelistedin
order of operation.
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
When ignitor button is pressed, there is no 1. Ignitor electrode not connected to igni- 1. Reconnect ignitor cable
spark at ODS/pilot
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 pilot assembly
7. Replace pilot assembly
When ignitor button is pressed, there is 1. Gas supply turned off or equipment 1. Turn on gas supply or open equipment
spark at ODS/pilot but no ignition
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 re-
moved
5. ODS/pilot is clogged
5. Clean ODS/pilot (see Cleaning and
Maintenance, pages 15 and 16) or re-
place ODS/pilot assembly
6. Gas regulator setting is not correct
6. Replace gas control
ODS/pilot lights but flame goes out when 1. Control knob not fully pressed in
1. Press in control knob fully
control knob is released
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, pages 15 and 16) or re-
place 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 1/4
trol valve
turn more
6. Thermocouple damaged
7. Control valve damaged
6. Replace pilot assembly
7. Replace control valve
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TROUBLESHOOTING
18
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 Main-
tenance, pages 15 and 16) or replace
burner orifice
2. Inlet gas pressure is too low
3. Burner orifice diameter is too small
2. Contact local natural gas company
4. Thermopile leads disconnected or im- 3. Replace burner orifice
properly connected
4. Reconnect leads (see wiring diagram)
5. Burners will not come on in remote position 5. Replace battery in transmitter and 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, pages 15 and 16) or replace burner
orifice
Burner backfiring during combustion
1. Burner orifice is clogged or damaged
1. Clean burner (see Cleaning and Main-
tenance, pags 15 and 16) or replace
burner orifice
2. Damaged burner
3. Gas regulator defective
2. Replace damaged burner
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 Mainte-
nance, pags 15 and 16)
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/condensation noticed on windows 1. Not enough combustion/ventilation air
1. Refer to Air for Combustion and Ventila-
tion requirements (page 4)
Heater produces a whistling noise when 1. Turning control knob to HI position when 1. Turn control knob to LO position and let
burner is lit
burner is cold
warm up for a minute
2. Air in gas line
2. Operate burner until air is removed from
line. Have gas line checked by local natu-
ral gas company
3. Air passageways on heater blocked
3. Observe minimum installation clearances
(see page 7)
4. Dirty or partially clogged burner orifice
4. Clean burner (see Cleaning and Main-
tenance, pages 15 and 16) or replace
burner orifice
Dark residue on logs or inside of stove
1. Improper log placement
1. Properly locate logs (see Installing Logs,
page 9)
2. Drafts or other air currents affecting 2. Eliminate source of drafts around heater
flame pattern
3. Air holes at burner inlet blocked
3. Clean out air holes at burner inlet. Peri-
odically repeat as needed
4. Burner flame holes blocked
4. Remove blockage
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. may turn
into white powder residue
ish, wax, carpet cleaners, or similar
products
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TROUBLESHOOTING
19
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: Operating heater where impurities in air exist may create odors. 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.
POSSIBLE CAUSE
OBSERVED PROBLEM
REMEDY
1. Metal expanding while heating or con-
tracting while cooling
Heater produces a clicking/ticking noise
just after burner is lit or shut off
1. This is common with most heaters. If
noise is excessive, contact qualified ser-
vice person
1. Heater burning vapors from paint, hair
spray, glues, cleaners, chemicals, new
carpet, etc. (See IMPORTANT state-
ment above)
Heater produces unwanted odors
1. Open window and ventilate room. Stop
using odor causing products while heater
is running
2. Gas leak. SeeWarning statement at
top of page
2. Locate and correct all leaks (see Check-
ing Gas Connections, pages 8 and 9)
1. Not enough fresh air is available
2. Low line pressure
3. ODS/pilot is partially clogged
Heater shuts off in use (ODS operates)
1. Open window and/or door for ventilation
2. Contact local natural gas company
3. Clean ODS/pilot (see Cleaning and
Maintenance, pages 15 and 16)
1. Gas leak. SeeWarning statement at
top of page
2. Control valve defective
Gas odor even when control knob is in OFF
position
1. Locate and correct all leaks (see Check-
ing Gas Connections, pages 8 and 9)
2. Replace control valve
1. Foreign matter between control valve
and burner
Gas odor during combustion
1. Take apart gas tubing and remove for-
eign matter
2. Gas leak. SeeWarning statement at
top of page
2. Locate and correct all leaks (see Check-
ing Gas Connections, pags 8 and 9)
1. Excessive line or manifold pressure
2. Dirty primary air holes
Burner flame is excessively large and is
very near or touches the top of firebox
1. Check manifold pressure and correct as
needed
2. Clean burner air holes (see Cleaning and
Maintenance, pages 15 and 16).
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ILLUSTRATED PARTS BREAKDOWN
S39NT
20
ILLUSTRATED PARTS
BREAKDOWN
S39NT
1
2
10
3
6
7
4
13
9
14
10
8
11
12
5
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PARTS LIST
S39NT
21
PARTS LIST
S39NT
This list contains replaceable parts used in your heater. When
ordering parts, follow the instructions listed under Replacement
Parts on page 24 of this manual.
KEY PART
NO.
NUMBER
DESCRIPTION
QTY.
1
2
3
4
5
6
7
8
107433-02
104285-01
098249-01
107090-01
107089-01
102843-01
099056-16
101329-20
102772-01
099387-09
098271-10
101381-01
105990-01
098867-09
Log Set
ODS Pilot (NG)
ODS Nut
Burner Outlet Tube
Inlet Tube
Burner Clip
Burner Orifice Injector
Gas Control Valve
Burner
1
1
2
1
1
1
1
1
1
1
1
1
1
1
9
10
11
12
13
14
Pilot Tube
Ignitor Cable
Piezo Ignitor and Cover
Pilot Shield
Regulator
107434-01C
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ILLUSTRATED PARTS BREAKDOWN
S39NT Stove Body
22
ILLUSTRATED
PARTS
BREAKDOWN
S39NT
5
10
21
1
19
22
18
20
21
6
22
26
11
19
26
8
23
4
9
17
12
2
16
3
7
15
14
25
24
13
107434-01C
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PARTS LIST
S39NT Stove Body
23
PARTS LIST
S39NT
This list contains replaceable parts used in your heater. When
ordering parts, follow the instructions listed under Replacement
Parts on page 24 of this manual.
KEY
NO.
PART NO.
DESCRIPTION
QTY.
1
2
3
4
5
6
7
8
107085-01CK
**
107076-01CK
**
Top Panel, Stove
Pedestal Stove Assembly
Stove Base
Stove Back Panel
Top Trim
Blower Bracket
Door
Firebox Back Panel
Firebox Floor
Firebox Top
Screen Assembly
Valve Bracket
Brass Trim, Bottom
Brass Trim, Firebox
Knob
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
4
1
2
1
2
2
1
1
1
12
107082-01CK
105657-01
107363-01CK
107078-01CJ
107080-01CK
107081-01CJ
107365-01CK
101382-01
107092-01
107093-01
106754-01
101386-02
099230-02
107079-01CJ
102455-12
102455-13
107091-01CK
107084-01CK
101514-01
103158-01
107083-01
098304-03
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Door Hinge
Shoulder Screw
Heat Deflector
Louver, Small
Louver, Large
Support, End Louver
Support, Center Louver
Blower Sensor Cover
Magnet Catch
Magnet Bracket
Louver Screw
PARTS AVAILABLE — NOT SHOWN
101054-01
100563-01
104108-06
Lighting Instructions Plate
Warning Plate
Touch-Up Paint Kit
1
1
1
** Part not available for field replacement.
107434-01C
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REPLACEMENT PARTS
ACCESSORIES
24
REPLACEMENT PARTS
ACCESSORIES
Purchase these heater accessories from your local dealer or Parts
Central (see page 25). If they cannot supply these accessories call
DESA International’s Sales Department at 1-866-672-6040 for
referral information. You can also write to the address listed on the
back page of this manual.
Note: Use only original replacement parts. This will protect your
warranty coverage for 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 Technical
Service Department at 1-866-672-6040 for referral information.
When calling DESA International, have ready
• your name
• your address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date
EQUIPMENT SHUTOFF VALVE - GA5010
Equipment shutoff valve with 1/8" NPT tap.
Usually, we will ask you to return the part to the factory.
PARTS NOT UNDER WARRANTY
ContactauthorizeddealersofthisproductorPartsCentral(seepage
25). If they can’t supply original replacement part(s) call DESA
International at 1-866-672-6040 for referral information.
When calling DESA International, have ready
• model number of your heater
• the replacement part number
MANUALLY-CONTROLLED BLOWER KIT -
GA3750
Provides better heat distribution. Features variable speed control
knob.
THERMOSTATICALLY-CONTROLLED
BLOWER KIT - GA3650TA
(Not Shown)
Provides better heat distribution. Features variable speed control
knob.
CLEANING KIT - CCK
(Not Shown)
Your vent-free gas appliance requires regular cleaning and mainte-
nance to prevent performance problems. This kit gives you the tools
and instructions to make it easy to clean all critical areas of your
appliance.
INFORMATION VIDEO - 108917-01
(Not Shown)
A care and maintenance video is available by calling 1-866-672-6040.
107434-01C
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OWNER'S REGISTRATION FORM
In order to provide better customer service for this and future purchases, we recommend that you register your product with us.
You can register online at www.desatech.com. If access to our website is not available to you, please complete this Owner’s
Registration Form and mail to the address on the back of this owner’s manual. Please provide the following product information:
Brand:
(Comfort Glow, Vanguard, etc.)
Model:
(EFP33PR, VTGH33NR, etc.)
Date Purchased:
Serial Number:
First Name:
Address:
Note: Keep receipt for warranty verification.
7 or 9 digit number located on product or identification tag.
Last Name:
City:
State:
Zip:
Country:
Home Phone:
E-Mail:
(
)
-
Please answer the following questions to register your product with DESA International:
1. Where will the product be used?
❍❍Living/Family Room ❍❍Office/Warehouse ❍❍Utility Shed/Outbuilding ❍❍Garage ❍❍Bedroom ❍❍Bathroom ❍❍Other
2. If you bought this product yourself, did you plan to purchase this type of product before going into the store? ❍❍Yes ❍❍No
3. Who selected the product? ❍ Male ❍ Female ❍ Both
4. What is the population of your area? ❍❍Under 10,000 ❍❍10,000 to 25,000 ❍ 25,000 to 50,000 ❍❍50,000 to 100,000
❍❍100,000 to 250,000 ❍❍Over 250,000
5. What is your primary source of heat? ❍❍Propane (LP Gas) ❍❍Fuel Oil ❍❍Wood ❍❍Natural Gas ❍❍Electric ❍❍Other
6. How was the product installed? ❍❍Professional Installer ❍❍Self ❍❍Other
7. Cost of product excluding sales tax? $___________________
8. Cost to install product? $____________________
9. Type of store where product was purchased? ❍❍Hardware ❍❍Propane Dealer ❍❍Natural Gas/Utility Co. ❍❍Home Center/Builder’s Supply
❍❍Fireplace or Hearth Shop ❍❍Farm Store ❍❍Other
10. What motivated you to buy this product? ❍❍Sudden Cold Weather ❍❍Replace Older Model ❍❍D.I.Y. Home Project
❍❍Emergency Back-Up Heat ❍❍Heater was on Sale ❍❍Energy Savings/High Efficiency ❍❍Construction Project ❍❍Other
11. How did you learn about this product brand? ❍❍Advertising ❍❍Relative or Friend ❍❍Store Display ❍❍Other ________________________
12. Level of Education of Purchaser: ❍❍Some High School ❍❍Completed High School ❍❍Completed College ❍❍Completed Graduate School
13. Age of Purchaser: ❍❍Under 20 ❍❍20 - 29 ❍❍30 - 39 ❍❍40 - 49 ❍❍50 - 59 ❍❍60 or Over
14. Buyer’s total annual household income: ❍❍Under $15,000 ❍❍$15,000 to $19,999 ❍❍$20,000 to $34,999 ❍❍$35,000 to $49,999
❍❍$50,000 to $74,999 ❍❍$75,000 to $99,999 ❍❍$100,000 and Over
15. Store where product was purchased:
Name: ______________________________________
City: _______________________ State: __________
16. In choosing this product, how important were the following:
Not Important
Somewhat Important
Very Important
Availability
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❍
❍
❍
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❍
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❍
❍
❍
❍
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❍
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❍
❍
❍
Price
Brand Name
Overall Quality
Heat Output
Made in USA
Warranty
Local Service
Value for Price
Prior Brand Experience
Controls Location
Thermostat, Remote, or Manual Operation
Ease of Operation
Special Features
Salesperson’s Recommendation
Friend/Relative’s Recommendation
Portability
Quiet Operation
❍
❍
❍
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PARTS CENTRALS
27
PARTS CENTRALS
These Parts Centrals are privately owned businesses. They have
agreed to support our customer’s needs by providing original
replacement parts and accessories.
Baltimore Electric
1348 Dixwell Avenue
Hamden, CT 06514-0322
1-800-397-7553
East Coast Energy Products
707 Broadway
W. Long Branch, NJ 07764-1542
732-870-8809
203-248-7553
1-800-755-8809
Parts Department
Portable Heater Parts
342 N. County Rd. 400 East
Valparaiso, IN 46383-9704
All States
Dayton Hardware
P.O. Box 275
North Dayton Station
Dayton, OH 45404-0275
All States
219-462-7441
1-888-619-7060
937-258-3721
OH 1-800-762-3426
Halco Enterprises
208 Carter Drive, Unit 21
West Chester, PA 19382-4500
610-430-7717
FBD
1349 Adams Street
Bowling Green, KY 42103-3414
270-846-1199
1-800-368-0803
1-800-654-8534
Fax: 1-800-846-0090
Laporte’s Parts & Service
2444 N. 5th Street
Master Parts Dist.
1251 Mound Ave NW
Grand Rapids, MI 49504-2672
616-791-0505
1-800-446-1446
Fax: 616-791-8270
Hartsville, SC 29550-7704
843-332-0191
Parts Department
Cans Unlimited, Inc.
P.O. Box 645
Taylor, SC 29687-0013
All States
Washer Equipment Co.
1715 Main Street
Kansas City, MO 64108-2195
KS, MO, AR
803-879-3009
1-800-845-5301
816-842-3911
107434-01C
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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 PEDESTAL STOVE
DESA International warrants this product to be free from defects in materials and components for two (2) years from the date of first purchase,
providedthattheproducthasbeenproperlyinstalled,operatedandmaintainedinaccordancewithallapplicableinstructions.Tomakeaclaimunder
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
operatingconditionandanallowanceforlaborwhenprovidedbyaDESAAuthorizedServiceCenter. Warrantypart(s)MUSTbeobtainedthrough
authorized dealers of this product and/or DESA International who will provide original factory replacement parts. Failure to use original factory
replacement parts voids this warranty. The heater MUST be installed by a qualified 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 responsibility of 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 MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE TO TWO (2) YEARS ON ALL COMPONENTS FROM THE DATE 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 WHATSOEVER 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:
TM
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
107434 01
107434-01
Rev. C
05/02
NOT A UPC
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