WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a
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. (Permanent gas supply installation only.)
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
WARNING: Improper installation,
adjustment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this
manual for correct installation and
operational procedures. For assistance or additional information
consult a qualified installer, service agency, or the gas supplier.
WARNING: This is an unvented
gas-fired heater. It uses air (oxygen) from the room in which it is
installed. Provisions for adequate combustion and ventilation air must be provided. Refer
to
Air for Combustion and Venti-
lation
manual.
section on page 4 of this
Save this manual for future reference.
Save this manual for future reference.
Page 2
TABLE OF CONTENTS
SAFETY INFORMATION
2
TABLE OF CONTENTS
SAFETY INFORMATION ............................................................ 2
CLEANING AND MAINTENANCE ............................................ 12
SAFETY INFORMATION
WARNINGS
IMPORTANT: Read this owner’s manual carefully and
completely before trying to assemble, operate, or service this heater. Improper use of this heater can cause
serious injury or death from burns, fire, explosion,
electrical shock, and carbon monoxide poisoning.
WARRANTY INFORMATION...................................... Back Cover
WARNING: Do not use any accessory not ap-
proved for use with this heater.
WARNING: If the recreational or commercial enclosure does not have a window or roof vent, DO NOT
USE THIS HEATER inside.
DANGER: Carbon monoxide poisoning may lead
to death!
When used without adequate combustion and ventilation air, this
heater may give off excessive carbon monoxide, an odorless,
poisonous gas.
WARNING: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness,
and nausea. If you have these signs, the heater may
not be working properly. Get fresh air at once! Have
heater serviced.
Some people, including pregnant women, people with heart or lung
disease, anemia, those under the influence of alcohol, and those at
high altitudes, are more affected by carbon monoxide than others.
Propane/LP Gas: Propane/LP gas is odorless. An odor-making
agent is added to propane/LP gas. The odor helps you detect a fuel
gas leak. However, the odor added to propane/LP gas can fade.
Propane/LP gas may be present even though no odor exists.
Make certain you read and understand all warnings. Keep this manual
for reference. It is your guide to safe and proper operation of this heater.
WARNING: Any change to this heater or its
controls can be dangerous.
This heater should be inspected before each use.
Frequent cleaning may be required. The control compartments, burners and circulating air passageways
of the heater must be kept clean.
Due to high temperatures, the appliance should be
located out of traffic and away from combustible
materials.
Children and adults should be alerted to the hazard of
high surface temperature and should stay away to
avoid burns or clothing ignition.
Do not place clothing or other flammable material on
or near the appliance. Never place any objects on the
heater.
Heater will remain hot for a time after shutdown.
Allow surface to cool before touching.
Young children should be carefully supervised when
they are near the heater.
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110373-01A
Page 3
SAFETY INFORMATION
Continued
Any safety screen or guard removed for servicing the
appliance must be replaced prior to operating the
heater.
Keep the appliance area clear and free from combustible materials, gasoline and other flammable vapors
and liquids.
1.Install and use heater with care. Follow all local ordinances
and codes. In the absence of local ordinances and codes, refer
to the Standard for Storage and Handling of Liquefied Petro-
leum Gas, ANSI/NFPA 58 and the Natural Gas Installation
Code, CAN/CGA B149.2. This instructs on the safe storage
and handling of propane/LP gases.
2.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.
3.This heater may be used in a recreational enclosure or temporary
construction work enclosure with a remote refillable propane/LP cylinder ONLY when the cylinder is located outdoors and the heater is
used with the hose kit #LP A3090 (included with this heater). NEVER
bring a refillable propane/LP cylinder indoors. A fire or explosion
can occur causing property damage, serious injury or death.
4.Use only the hose and factory preset regulator provided with
the heater. Use only replacement pressure regulators and hose
assemblies specified in this manual. See Accessories, page 18.
5.Inspect the hose before each use of the heater. If it is evident there
is excessive abrasion or wear, or the hose is cut, it must be replaced prior to the heater being put into operation. Use replacement hose assembly kit #LPA3090 (see Accessories, page 18).
6.Use only propane gas set up for vapor withdrawal.
7.This heater shall not be installed in a bedroom or bathroom.
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. You must provide a minimum 10 square
inches of ventilation air for adequate combustion.
9.If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced.
10. Keep all air openings in front and bottom of heater clear and free
of debris. This will insure enough air for proper combustion.
11. Do not use heater if any part has been under water. Immediately call a qualified service technician to inspect the room
heater and to replace any part of the control system and any
gas control which has been under water.
SAFETY INFORMATION
PRODUCT IDENTIFICATION
UNPACKING
12. Turn off and let cool before servicing. Only a qualified service
person should service and repair heater.
13. Operating heater above elevations of 4,500 feet could cause
pilot outage.
14. Turn off propane/LP supply when not in use.
15. Check heater for damage before each use. Do not use a damaged heater.
16. Do not alter heater. Keep heater in its original state.
17. Do not use heater if altered.
18. This heater can only be used in a recreational or commercial
enclosure with a window or roof vent. This heater is not for
outdoor use.
19. Before using the heater provide adequate ventilation. An
area of 10 square inches of opening of a window or roof
vent is needed for adequate combustion and v entilation air .
3
3
PRODUCT IDENTIFICATION
Ignitor
Button
Panel
Regulator
Hose
Figure 1 - Vent-Free Propane/LP Gas Heater
Control Knob
Grill
Guard
Glass
PanelFront
Heater
Cabinet
UNPACKING
1.Remove heater from carton.
2.Remove all protective packaging applied to heater for shipment.
3.Check heater for any shipping damage. If heater is damaged,
promptly return to dealer where you bought heater.
110373-01A
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Page 4
i
LOCAL CODES
PRODUCT FEATURES
4
PROPANE/LP SUPPLY
INSTALLATION
Check Gas Type
Locating Heater
LOCAL CODES
Install and use heater with care. Follow all local codes. In the absence
of local codes, use the latest edition of National Fuel Gas Code, ANSIZ223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
PRODUCT FEATURES
SAFETY PILOT
This heater has a pilot with an Oxygen Depletion Sensing (ODS)
safety shutoff system. The ODS/pilot is a required feature for ventfree room heaters. The ODS/pilot shuts off the heater if there is not
enough fresh air.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system requires no matches,
batteries, or other sources to light heater.
PROPANE/LP SUPPLY
Propane/LP gas and propane/LP tank(s) are to be furnished by the user.
The propane/LP cylinder to be used must be constructed and marked
in accordance with the specifications for the propane/LP gas cylinders of the U.S. Department of Transportation (DOT).
Use this heater only with a propane/LP vapor withdrawal supply
system. See Chapter 5 of the Standard for Storage and Handling ofLiquefied Petroleum Gas, ANSI/NFPA 58 and/or CAN/CGA B149.2.
Your local library or fire department will have this booklet.
The amount of propane/LP gas ready for use from propane/LP tanks
varies. Two factors decide this amount:
1.The amount of propane/LP gas in tank(s)
2.The temperature of tank(s)
This heater is designed for use with a 20 or 40 pound refillable
propane/LP cylinder when used as a self contained heating system
(with hose and regulator). Larger tanks may be used if installed in
a permanent gas supply system.
The propane/LP cylinder used must include a collar to protect the
cylinder valve, and a listed overfilling prevention device (OPD).
INSTALLATION
CHECK GAS TYPE
Use only propane/LP gas. If your gas supply is not propane/LP, do
not install heater. Call dealer where you bought heater for proper
type heater.
LOCATING HEATER
WARNING: Maintain the minimum clearances
shown in Figure 2. If you can, provide greater clearances from floor, ceiling, and joining wall.
WARNING: Never install the heater
• in a bathroom
• where curtains, furniture, clothing, or other flam-
mable objects are less than 36 inches from the
front, top, or sides of the heater
• as a fireplace insert
• in high traffic areas
• in windy or drafty areas
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
coverings or operating heater where impurities (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.
CAUTION: If you install the heater in a home garage
• heater pilot and burner must be at least 18 inches
above floor
• locate heater where moving vehicle will not hit it
For convenience and efficiency, install heater
• where there is easy access for operation, inspection, and service
• in coldest part of room
6"
Minimum
From
Sides Of
Heater
Left
Side
CEILING
Right
Side
36"
Minimum
3"
FLOOR
Figure 2 - Mounting Clearances As Viewed From Front of Heater
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Minimum To Top Surface
Minimum Of Carpet
Of Carpeting, Tile Or Other
Combusti
Combustible Material
110373-01A
Page 5
INSTALLATION
Continued
Thermostat Sensing Bulb
INSTALLATION
Installing Heater To Wall
5
5
THERMOSTAT SENSING BULB
The thermostat sensing bulb is located inside the heater. Do not
move this bulb during installation or operation of the heater.
INSTALLING HEATER TO WALL
Marking Screw Locations
1.Determine where you will locate heater.
WARNING: Maintain minimum clearances shown
in Figure 3. If you can, provide greater clearances
from floor and joining wall.
2.Mark two mounting screw locations on wall (see Figure 3).
Installing Two Mounting Screws
Note:
Wall anchors and mounting screws are in hardware package.
The hardware package is provided with heater.
7
/8"
8
Minimum To
Maintain 6"
Clearance
From Wall
JOINING WALL
3
/4"
7
Mounting
Screw
Locations
1
20
/4"
Minimum To
Maintain 3"
Clearance
From Floor
3.Insert wall anchor (wings first) into hole. Tap anchor flush to wall.
4.For thin walls (1/2" or less), insert red key into wall anchor.
Push red key to “pop” open anchor wings (see Figure 5).
IMPORTANT
: Do not hammer key! For thick walls (over 1/2"
thick) or solid walls, do not pop open wings.
5.Tighten two screws until 1/16" space (thickness of penny) is
between screwheads and wall (see Figure 6).
Thin Walls
(1/4" to
1/2" thick)
Figure 4 - Folding Anchor
1/16"
Space
Figure 6 - Tightening Anchors
Figure 5 - Popping Open Anchor
Wings For Thin Walls
Thin or Thick
Wall (thick
wall shown)
Solid
Wall
Placing Heater On Mounting Screws
1.Locate two keyhole slots on back panel of heater (see Figure 7).
2.Place large openings of slots over screwheads. Slide heater
down until screws are in small portion of slots.
FLOOR
Figure 3 - Mounting Screw Locations
Attaching To Wall Stud Method
For attaching mounting screw to wall stud
1.Drill hole at marked location using 9/64" drill bit.
2.Insert mounting screw into wall stud.
3.Tighten screw until 1/16" space (thickness of penny) is between screwhead and wall.
Attaching To Wall Anchor Method
Follow instructions below to attach mounting screws to hollow walls
(wall areas between studs) or solid walls (concrete or masonry).
1.Drill holes at marked locations using 5/16" drill bit. For solid
walls (concrete or masonry), drill at least 1 1/4" deep.
2.Fold wall anchor (see Figure 4).
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110373-01A
Keyhole Slots
Figure 7 - Location Of Keyhole Slots On Back Panel Of Heater
Removing Front Panel Of
Heater
1.Remove two screws near bottom corners of front panel.
2.Lift straight up on grill guard
until it stops. Grill guard will
slide up about 1/4".
3.Pull bottom of front panel forward, then down.
Figure 8 - Removing Front Panel
Of Heater
Page 6
INSTALLATION
6
Installing Heater To Wall (Cont.)
Connecting to Portable Cylinder Gas Supply
INSTALLATION
Continued
Installing Bottom Mounting Screw
1.Locate bottom mounting hole. This hole is near bottom on back
panel of heater (see Figure 9).
2.Mark screw location on wall.
3.Remove heater from wall.
4.If installing bottom mounting screw into hollow or solid wall,
install wall anchor. Follow steps 1 through 5 under Attaching ToW all Anchor Method, page 5. If installing bottom mounting screw
into wall stud, drill hole at marked location using 9/64" drill bit.
5.Replace heater on wall.
6.Insert bottom anchor screw through back panel into bottom
anchor or drilled hole (see Figure 9).
7.Tighten screw until heater is firmly secured to wall. Do not
over tighten.
Note:
Do not replace front panel at this time. Replace front
panel after making gas connections and checking for leaks (see
pages 9 and 10).
2.Connect fuel gas fitting on hose/regulator assembly to propane/LP tank(s). Turn fuel gas fitting counterclockwise into
threads on tank. Tighten firmly using a wrench.
IMPORTANT:
Position regulator so that hose leaving the regulator is in a
horizontal position (see Figure 10). This places the regulator
vent in the proper position to protect it from the weather.
3.Connect hose to heater inlet. Tighten firmly using a wrench.
You must use the regulator supplied with heater.
4.Open propane/LP supply valve on propane/LP tank(s) slowly.
Note:
If not opened slowly, excess-flow check valve on propane/LP tank may stop gas flow. If this happens, close propane/LP supply valve and open again slowly.
5.Check all connections for leaks. Apply a noncorrosive leak
detection fluid to gas joints. Bubbles forming show a leak that
must be corrected.
6.Close propane/LP supply valve.
Propane/LP
Supply
Valve
Propane/LP
Tank
Fuel Gas
Fitting
Regulator
Hose To
Heater
Figure 9 - Installing Bottom Mounting Screw
CONNECTING TO PORTABLE CYLINDER
GAS SUPPLY
WARNING: Review and understand the warnings
in the
needed to safely operate this heater. Follow all local
codes when using this heater.
for leaks after installation or servicing. 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.
IMPORTANT: You must use a propane/LP gas supply cylinder that
is compatible with the connection device provided with the hose and
regulator.
1.Provide propane/LP supply system (see Propane/LP Supply,
Safety Information
section, page 2. They are
WARNING: Test all gas piping and connections
page 4).
Figure 10 - Regulator Position
Pressure
Regulator
Heater
Cabinet
Hose Fitting
Elbow
Hose To
Regulator
Figure 11 - Gas Connection
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110373-01A
Page 7
INSTALLATION
Continued
INSTALLATION
Connecting To Permanent Gas Supply
7
7
CONNECTING TO PERMANENT GAS SUPPLY
WARNING: This appliance requires a 3/8" NPT
(National Pipe Thread) inlet connection to the pressure regulator.
WARNING: A qualified service person must connect heater to gas supply. Follow all local codes.
CAUTION: Never connect heater directly to the
propane/LP supply. This heater requires an external
regulator (not supplied). Install the external regulator
between the heater and propane/LP supply.
INSTALLATION ITEMS
Before installing heater, make sure you have the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• ground joint union
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
* A CSA design-certified equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge connection. The
optional CSA design-certified equipment shutoff valve can be
purchased from your dealer. See Accessories, page 18.
CAUTION: Use only new, black iron or steel pipe.
Internally-tinned copper tubing may be used in certain
areas. Check your local codes. Use pipe of large
enough diameter to allow proper gas volume to heater.
If pipe is too small, undue loss of volume will occur.
Propane/LP
Supply
Tank
Figure 12 - External Regulator With Vent Pointing Down
Installation must include 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 13, page 8).
IMPORTANT:
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: Use pipe joint sealant that is resistant
to liquid petroleum (LP) gas.
Install an equipment shutoff valve in an accessible
External
Regulator
Vent
Pointing
Down
If installing to a fixed fuel piping system, the installation must
conform with local codes or, in the absence of local codes, with the
National Fuel Gas Code, ANSI Z223.1.
If the heater will be connected to a permanent gas source, the installer
must supply an external regulator. The external regulator will reduce
incoming gas pressure. You must reduce incoming gas pressure to
between 11 and 14 inches of water. If you do not reduce incoming gas
pressure, heater regulator damage could occur. Install the external
regulator with the vent pointing down as shown in Figure 12. Pointing
the vent down protects it from freezing rain or sleet.
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110373-01A
Page 8
O
POSI
PO
INSTALLATION
8
Connecting To Permanent Gas Supply (Cont.)
Checking Gas Connections For Permanent Gas Supply
INSTALLATION
Continued
CONNECTING TO PERMANENT GAS SUPPLY
(CONTINUED)
Install sediment trap in supply line as shown in Figure 13. Locate
sediment trap where it is within reach for cleaning. 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.
IMPORTANT:
connecting it to gas piping and/or fittings. Do not over tighten pipe
connection to regulator. The regulator body could be damaged.
3/8" NPT
Pipe Nipple**
Ground
Joint
Union
Equipment Shutoff
Valve *
From External
Regulator
(11" W.C. to
14" W.C.
Pressure)
Figure 13 - Gas Connection
* 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 18.
** The 90º elbow on the regulator is removed and the 3/8" NPT pipe
nipple is installed in its place.
Hold the pressure regulator with wrench when
Pressure
Regulator
Heater
Cabinet
Tee Joint
3" Minimum
Reducer
Bushing to
1/8" NPT
1/8" NPT
Plug Tap
Tee Joint
Pipe Nipple
Cap
Test
Gauge
Connection*
Sediment
Trap
CHECKING GAS CONNECTIONS FOR
PERMANENT GAS SUPPLY
WARNING: Test all gas piping and connections
for leaks after installing or servicing. Correct all leaks
at once.
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.
CAUTION: Make sure external regulator has been
installed between propane/LP supply and heater. See
guidelines under
ply
, pages 7 and 8.
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1.Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage heater
regulator.
2.Cap off open end of gas pipe where equipment shutoff valve
was connected.
3.Pressurize supply piping system by opening propane/LP supply
tank valve or using compressed air.
4.Check all joints of gas supply piping system. Apply a noncor rosive leak detection fluid to all joints. Bubbles forming show
a leak.
5.Correct all leaks at once.
6.Reconnect heater and equipment shutoff valve to gas supply.
Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1.Close equipment shutoff valve (see Figure 14).
2.Pressurize supply piping system by either opening propane/LP
supply tank valve or using compressed air.
Equipment
Shutoff
Valve
Connecting to Permanent Gas Sup-
Open
Closed
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Figure 14 - Equipment Shutoff Valve
110373-01A
Page 9
INSTALLATION
Checking Gas Connections For Permanent Gas Supply (Cont.)
OPERATING HEATER
For Your Safety Read Before Lighting
Lighting Instructions
9
9
INSTALLATION
Continued
CHECKING GAS CONNECTIONS FOR
PERMANENT GAS SUPPLY (CONTINUED)
3.Check all joints from supply tank to equipment shutoff valve
(see Figure 15). Apply a noncorrosive leak detection fluid to
all joints. Bubbles forming show a leak.
4.Correct all leaks at once.
Pressure Testing Heater Gas Connections
1.Open equipment shutoff valve (see Figure 14, page 8).
2.Open propane/LP supply tank valve.
3.Make sure control knob of heater is in the OFF position.
4.Check all joints from equipment shutoff valve to thermostat
gas valve (see Figure 15). Apply a noncorrosive leak detection
fluid to all joints. Bubbles forming show a leak.
5.Correct all leaks at once.
6.Light heater (see Lighting Instructions, pages 9 and 10). Check
all other internal joints for leaks.
7.Turn off heater (see To Turn Off Gas to Appliance, page 10).
8.Replace front panel.
Control
Propane/LP
Supply Tank
Figure 15 - Checking Gas Joints
Valve
Location
Equipment
Shutoff
Valve
OPERATING HEATER
FOR YOUR SAFETY READ
BEFORE LIGHTING
WARNING: If you do not follow these instructions
exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
A. This appliance has a pilot which must be lighted by hand.
When lighting the pilot, follow these instructions exactly.
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.
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.
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.
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.
LIGHTING INSTRUCTIONS
1.STOP! Read the safety information above.
2.Make sure equipment shutoff valve is fully open.
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! Follow “B” in the safety information above. If y ou don’t smell
gas, go to the next step.
5.T urn control knob counterclockwise to the PILOT
position. Press in control knob for f ive (5) seconds (see Figure 16, page 10).
Note:
You may be running this heater for the first time
after hooking up to gas supply . If so, the control knob may
need to be pressed in for 30 seconds or more. This will allow air to bleed from the gas system.
• If control knob does not pop up when released, contact a
qualified service person or gas supplier for repairs.
110373-01A
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Page 10
OPERATING HEATER
10
Lighting Instructions
To Turn Off Gas To Appliance
Thermostat Control Operation
Manual Lighting Procedure
OPERATING HEATER
Continued
6.With control knob pressed in, push down and release ignitor button. This will light pilot. The pilot is attached to the
front of burner. The pilot can be seen through the glass panel.
If needed, keep pressing ignitor button until pilot lights.
Note:
If pilot does not stay lit, refer to Troubleshooting,
pages 13 through 15. Also contact a qualified service person or gas supplier for repairs. Until r epairs are made, light
pilot with match. To light pilot with match, see ManualLighting Procedure.
7.Keep control knob pressed in for 30 seconds after lighting
pilot. After 30 seconds, release control knob.
• If control knob does not pop up 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 before
lighting pilot again.
8.Turn control knob counterclockwise to desired
heating level. The main burner should light. Set control
knob to any heat level between HI and LO.
CAUTION: Do not try to adjust heating levels by
using the equipment shutoff valve.
Ignitor Button
IGNITOR
Figure 16 - Control Knob In The OFF Position
Control Knob
T
LO
O
IL
P
O
FF
HI
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1.Turn control knob clockwise to the OFF position.
2.Turn off all electric power to the appliance if service is to
be performed.
Shutting Off Burner Only (pilot stays lit)
Turn control knob clockwise to the PILOT position.
THERMOSTAT CONTROL
OPERATION
The thermostatic control used on these models differs from standard thermostats. Standard thermostats simply turn on and off the
burner. The thermostat used on this heater senses the room
temperature. The thermostat adjusts the amount of gas flow to the
burner. This increases or decreases the burner flame height. At
times the room may exceed the set temperature. If so, the burner
will shut off. The burner will cycle back on when room temperature
drops below the set temperature. The control knob can be set to any
heat level between HI and LO. Selecting the HI setting will cause the
burner to remain fully on without modulating down in most cases.
Note:
The thermostat sensing bulb measures the temperature
of air near the heater cabinet. This may not always agree with
room temperature (depending on housing construction, installation location, room size, open air temperatures, etc.). Frequent use of your heater will let you determine your own
comfort levels.
Figure 17 - Pilot
Thermocouple
Ignitor Electrode
Pilot Burner
1.Remove front panel (see Figure 8, page 5).
2.Follow steps 1 through 5 under Lighting Instructions, page 9.
MANUAL LIGHTING
PROCEDURE
3.With control knob pressed in, strike ma tch. Hold match to
pilot until pilot lights.
4.Keep control knob pressed in for 30 seconds after lighting
pilot. After 30 seconds, r elease contr ol knob. Follow step 8
under Lighting Instructions.
5.Replace front panel.
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110373-01A
Page 11
INSPECTING BURNER
V
Check pilot flame pattern and burner flame pattern often.
PILOT FLAME PATTERN
INSPECTING BURNER
Pilot Flame Pattern
Burner Flame Heater
STORAGE
11
11
Figure 18 shows a correct pilot flame pattern. Figure 19 shows an
incorrect pilot flame pattern. 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.
If pilot flame pattern is incorrect, as shown in Figure 19
• turn heater off (see To Turn Off Gas to Appliance, page 10)
• see Troubleshooting, pages 13 through 15
Thermocouple
Thermocouple
Pilot Burner
GOOD PILOT/LP
Figure 18 - Correct Pilot Flame Pattern
Thermocouple
Pilot Burner
Figure 19 - Incorrect Pilot Flame Pattern
GRH/O
GRH/OV 008BAD PILOT/LP
Thermocouple
Blue Flame
Pilot Burner
Yellow
Flame
Pilot
Burner
BURNER FLAME PATTERN
Figure 20 shows a correct burner flame pattern. Figure 21 shows an
incorrect burner flame pattern. The incorrect burner flame pattern
shows yellow tipping of the flame. It also shows the flame higher
than 1/2 the glass panel height.
WARNING: If yellow tipping occurs, your heater
could produce increased levels of carbon monoxide.
If burner flame pattern shows yellow tipping, see the
following instructions.
NOTICE: Do not mistake orange flames with yellow
tipping. Dust or other fine particles enter the heater
and burn causing brief patches of orange flame.
1/2 GLASS HEIGHT
Figure 20 - Correct Burner Flame Pattern
Yellow Tipping
1/2 GLASS HEIGHT
Figure 21 - Incorrect Burner Flame Pattern
STORAGE
CAUTION: Disconnect heater from propane/LP
supply tank(s).
When the propane/LP supply cylinder is not disconnected from the
heater, the heater and the cylinder must be stored outdoors, in a well
ventilated space, out of reach of children. Do not store in a building,
garage or any other enclosed area.
Storage of the heater is permissible only if the cylinder is disconnected and removed from the heater. Cylinders must be stored
outdoors out of reach of children. Do not store in a building, garage
or any other enclosed area.
1.Store propane tank(s) in safe manner. See Chapter 5 of Stan-
dard for Storage and Handling of Liquefied Petr oleum Gases,
ANSI/NFPA 58. Follow all local codes. Always store propane
tanks outdoors.
2.Place plastic cover caps over brass fittings on inlet connector
and hose/regulator assembly.
3.Store in dry, clean, and safe place. Do not store hose/regulator
assembly inside heater combustion chamber.
4.When taking heater out of storage, always check inside of
heater. Insects and small animals may place foreign objects in
heater.
If burner flame pattern is incorrect, as shown in Figure 23
• turn heater off (see To Turn Off Gas to Appliance, page 10)
• see Troubleshooting, pages 13 through 15
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110373-01A
Page 12
CLEANING AND MAINTENANCE
12
ODS/Pilot and Burner
Cleaning Burner Pilot Air Inlet
Cabinet
CLEANING AND
MAINTENANCE
WARNING: Turn off heater and let cool before
cleaning.
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.
CAUTION: You must check and keep burner/
venturi tubes clean of insect and insect nest. A
clogged tube can lead to a fire.
Pilot Air Inlet
Hole
Pilot Assembly
Pilot Assembly
ODS/PILOT AND BURNER
• Use a vacuum cleaner, pressurized air, or small, soft bristled
brush to clean.
CLEANING BURNER PILOT AIR INLET
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, and lint. Clean these air inlet holes prior to each heating
season. Blocked air holes will create soot. We recommend that you
clean the unit every three months during operation and have heater
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 compressed air in a can, please follow the directions on the can. If you don't follow directions on the can, you could
damage the pilot assembly.
1.Shut off the unit, including the pilot. Allow the unit to cool for
at least thirty minutes.
2.Inspect burner, pilot for dust and dirt.
3.Blow air through the ports/slots and holes in the burner.
4.Never insert objects into the pilot tube.
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 about two inches from where the pilot flame comes out of
the pilot assembly (see Figure 22). With the unit off, lightly blow air
through the air inlet. You may blow through a drinking straw if
compressed air is not available.
(Propane/LP
Pilot Air Inlet
Figure 22 - Pilot Inlet Air Hole
Burner
Tube
Figure 23 - Injector Holder On Burner Tube
Ports/Slots
Pilot Shown)
Injector Holder
CABINET
Air Passageways
• Use a vacuum cleaner or pressurized air to clean.
Exterior
• Use a soft cloth dampened with a mild soap and water mixture.
Wipe the cabinet to remove dust.
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For more information, visit www.desatech.com
110373-01A
Page 13
TROUBLESHOOTING
13
13
TROUBLESHOOTING
Note:
All troubleshooting items are listed in
order of operation.
OBSERVED PROBLEM
When ignitor button is pressed, there is no
spark at ODS/pilot
When ignitor button is pressed, there is
spark at ODS/pilot but no ignition
WARNING: Turn off heater
and let cool before servicing.
Only a qualified service person should service and repair
heater.
POSSIBLE CAUSE
1. Ignitor electrode positioned wrong
2. Ignitor electrode broken
3. Ignitor electrode not connected to ignitor cable
4. Ignitor cable pinched or wet
5. Piezo ignitor nut is loose
6. Broken ignitor cable
7. Bad piezo ignitor
1. Gas supply turned off or equipment
shutoff valve closed
2. Control knob not in PILOT position
3. Control knob not pressed in while in
PILOT position
4. Air in gas lines when installed
5. ODS/pilot is clogged
6. Gas regulator setting is not correct
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot. This can damage ODS/
pilot unit.
REMEDY
1. Replace pilot assembly
2. Replace pilot assembly
3. Reconnect ignitor cable
4. Free ignitor cable if pinched by any
metal or tubing. Keep ignitor cable dry
5. Tighten nut holding piezo ignitor to
heater cabinet. Nut is located inside
heater cabinet at top
6. Replace ignitor cable
7. Replace piezo ignitor
1. Turn on gas supply or open equipment
shutoff valve
2. Turn control knob to PILOT position
3. Press in control knob while in PILOT
position
4. Continue holding down control knob.
Repeat igniting operation until air is removed
5. Clean ODS/pilot (see Cleaning andMaintenance, page 12) or replace ODS/
pilot assembly
6. Replace gas regulator
ODS/pilot lights but flame goes out when
control knob is released
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110373-01A
1. Control knob not fully pressed in
2. Control knob not pressed in long enough
3. Safety interlock system has been triggered
4. Equipment shutoff valve not fully open
5. Thermocouple connection loose at control valve
6. Pilot flame not touching thermocouple,
which allows thermocouple to cool,
causing pilot flame to go out. This problem could be caused by one or both of
the following:
A) Low gas pressure
B) Dirty or partially clogged ODS/pilot
7. Thermocouple damaged
8. Control valve damaged
1. Press in control knob fully
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds
3. W ait one minute for safety interlock system to reset. Repeat ignition operation.
4. Fully open equipment shutoff valve
5.
Hand tighten until snug, then tighten 1/4
turn more
6.
A) Contact local propane/LP gas company
B) Clean ODS/pilot (see Cleaning andMaintenance, page 12) or replace ODS/
pilot assembly
7. Replace pilot assembly
8. Replace control valve
Page 14
TROUBLESHOOTING
14
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Burner does not light after ODS/pilot is lit
Delayed ignition of burner
Burner backfiring during combustion
Yellow flame during burner combustion
Slight smoke or odor during initial operation
POSSIBLE CAUSE
1. Burner orifice is clogged
2. Inlet gas pressure is too low
1. Manifold pressure is too low
2. Burner orifice is clogged
1. Burner orifice is clogged or damaged
2. Inlet gas pressure is too low
3. Burner damaged
4. Gas regulator defective
1. Not enough air
2. Inlet gas pressure is too low
3. Gas regulator defective
1. Residues from manufacturing processes
REMEDY
1. Clean burner orifice (see Cleaning and
Maintenance, page 12) or replace burner
orifice
2. Contact local propane/LP gas company
1. Contact local propane/LP gas company
2. Clean burner orifice (see Cleaning andMaintenance, page 12) or replace burner
orifice
1. Clean burner orifice (see Cleaning andMaintenance, page 12) or replace burner
orifice
2. Contact local propane/LP gas company
3. Replace burner
4. Replace gas regulator
1. Check burner for dirt and debris. If
found, clean burner (see Cleaning andMaintenance, page 12)
2. Contact local propane/LP gas company
3. Replace gas regulator
1. Problem will stop after a few hours of
operation
Heater produces a whistling noise when
burner is lit
1. Turn control knob to HI position when
burner is cold
2. Air in gas line
3. Air passageways on heater blocked
4. Dirty or partially clogged burner orifice
1. Turn control knob to LO position and
let warm up for a minute
2. Operate burner until air is removed
from line. Have gas checked by local
propane/LP gas company
3. Observe minimum installation clearances (see Figure 2, page 4)
4. Clean burner (see Cleaning and Mainte-nance, page 12) or replace burner orifice
For more information, visit www.desatech.com
For more information, visit www.desatech.com
110373-01A
Page 15
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.
• 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.
TROUBLESHOOTING
15
15
IMPORTANT
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.
OBSERVED PROBLEM
Heater produces a clicking/ticking noise
just after burner is lit or shut off
Heater produces unwanted odors
Heater shuts off in use (ODS operates)
Gas odor even when control knob is in OFF
position
: Operating heater where impurities in air exist may create odors. Cleaning
POSSIBLE CAUSE
1. Metal expanding while heating or contracting while cooling
1. Heater burning vapors from paint, hair
spray, glues, etc. See
statement above
2. Low fuel supply
3. Gas leak. See Warning statement at
top of page
1. Not enough fresh air is available
2. Low line pressure
3. ODS/pilot is partially clogged
1. Gas leak. See Warning statement at
top of page
2. Control valve defective
IMPORTANT
REMEDY
1. This is common with most heaters. If
noise is excessive, contact qualified service person
1. V entilate room. Stop using odor -causing
products while heater is running
2. Refill supply tank
3. Locate and correct all leaks (see Check-
ing Gas Connections for Permanent Gas
Supply, page 9)
1. Open window and/or door for ventilation
2. Contact local propane/LP gas company
3. Clean ODS/pilot (see Cleaning andMaintenance, page 12)
1. Locate and correct all leaks (see Check-
ing Gas Connections for Permanent Gas
Supply, page 9)
2. Replace control valve
Gas odor during combustion
Moisture/condensation noticed on windows
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110373-01A
1. Foreign matter between control valve
and burner
2. Gas leak. See Warning statement at
top of page
1. Not enough combustion/ventilation air
1. Take apart gas tubing and remove foreign matter
2. Locate and correct all leaks (see Check-
ing Gas Connections for Permanent Gas
Supply, page 9)
1. Provide more combustion area. A
minimum 10 square inches of ventilation air must be provided for adequate
combustion.
Page 16
ILLUSTRATED PARTS BREAKDOWN
16
REM10PT
ILLUSTRATED PARTS
BREAKDOWN
REM10PT
21
22
20
10
14
13
12
10
4
7
6
3
2
5
9
11
8
14
15
19
17
23
16
24
18
1
PILOT
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110373-01A
Page 17
PARTS LIST
REM10PT
This list contains replaceable parts used in your heater. When
ordering parts, follow the instructions listed under ReplacementParts on page 18 of this manual.
102471-01Control Position Label1
100642-02Assembly, Hardware1
LPA3090Hose/Regulator Assembly1
PARTS LIST
REM10PT
17
17
110373-01A
** Not a field replacable part.
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For more information, visit www.desatech.com
Page 18
18
SPECIFICATIONS
TECHNICAL SERVICE
SERVICE HINTS
SERVICE PUBLICATIONS
ACCESSORIES
REPLACEMENT PARTS
SPECIFICATIONS
REM10PT
Btu(Variable)5,000/10,000
Type GasPropane/LP Only
IgnitionPiezo
Internal Regulator Setting8" W.C.
Inlet Gas Pressure to Heater
(inches of water)14" Max. / 11" Min.
Supply Pressure to Regulator
Min (for input adjustment) 10 psi
Max200 psi
Heater Dimensions
(Includes knobs and grill)21.5" (H) x 13.5" (W) x 7" (D)
Shipping Weight (pounds)21
TECHNICAL SERVICE
You may have further questions about installation, operation, or
troubleshooting. If so, contact DESA International’s Technical
Service Department at 1-866-672-6040. When calling please have
your model and serial numbers of your heater ready.
You can also visit DESA International’s technical service web site
at www.desatech.com.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burner will have delayed ignition
• heater will not produce specified heat
• propane/LP gas supply may be low
You may feel your gas pressure is too low. If so, contact your local
propane/LP gas supplier.
SERVICE PUBLICATIONS
You can purchase a service manual from the address listed on the
back page of this manual. Send a check for $5.00 payable to DESA
International.
ACCESSORIES
Purchase this heater accessory from your local dealer. If they cannot
supply this accessory, call DESA International at 1-866-672-6040
for referral information. You can also write to the address listed on
the back page of this manual.
Part NumberDescription
LPA3090Hose/Regulator Assembly
U.L. listed.
LPA4020Fuel Gas Connector
Connects regulator to all standard propane tanks. U.L. and A.G.A. listed.
REPLACEMENT PARTS
Note:
Use only original replacement parts. This will protect your
warranty coverage for parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealer from whom you purchased this product.
If they cannot supply original replacement part(s), call DESA
International’s Technical Service Department at 1-866-672-6040
for referral information. When contacting your dealer or DESA
International, have ready:
• your name and address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date
Usually, we will ask you to return the part to the factory.
PARTS NOT UNDER WARRANTY
Contact authorized dealers of this product. If they cannot 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
For more information, visit www.desatech.com
For more information, visit www.desatech.com
110373-01A
Page 19
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:
Model:
Date Purchased:
Serial Number:
First Name: Last Name:
Address:
City:State:Zip: Country:
Home Phone: ( ) -
E-Mail:
Please answer the following questions to register your product with DESA International:
1. If you bought this product yourself, did you plan to purchase this type of product before going into the store? ❍ Yes ❍ No
2. Who selected the product? ❍ Male ❍ Female ❍ Both
3. 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
4. What is your primary source of heat? ❍ Propane (LP Gas) ❍ Fuel Oil ❍ Wood ❍ Other
5. How was the product installed? ❍ Professional Installer ❍ Self ❍ Other
6. Cost of product excluding sales tax? $___________________
7. Cost to install product? $____________________
8. Type of store where product was purchased? ❍ Hardware ❍ Propane Dealer ❍ Natural Gas/Utility Co. ❍ Home Center/Builder’s Supply
❍ Farm Store ❍ Other
9. What motivated you to buy this product? ❍ Sudden Cold Weather ❍ Replace Older Model
❍ Heater was on Sale ❍ Energy Savings/High Efficiency ❍ Other
10. How did you learn about this product brand? ❍ Advertising ❍ Relative or Friend ❍ Store Display ❍ Other ________________________
11. Level of Education of Purchaser: ❍ Some High School ❍ Completed High School ❍ Completed College ❍ Completed Graduate School
12. Age of Purchaser: ❍ Under 20 ❍ 20 - 29 ❍ 30 - 39 ❍ 40 - 49 ❍ 50 - 59 ❍ 60 or Over
13. 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
14. Store where product was purchased:
Name: ______________________________________
City: _______________________ State: __________
15. In choosing this product, how important were the following:
Availability
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
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 GAS HEATERS
DESA International warrants this product to be free from defects in materials and components for two (2) 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 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
www.desatech.com
110373 01
NOT A UPC
For more information, visit www.desatech.com
For more information, visit www.desatech.com
110373-01
Rev. A
07/02
110373-01A
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