Kozy-World GFD4375KD User manual

– Do not store or use gasoline or other flammable vapors and liquids in 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.
VENT-FREE GAS INSERT
MODEL #GFD4375KD
INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual
for future reference.
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.
CAUTION – FOR YOUR SAFETY
This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is
installed. Provisions for adequate combustion and ventilation air must be provided.
Refer to Air for Combustion and Ventilation section on page 7 of this manual.
This appliance may be installed in an aftermarket, permanently located, manufactured
(mobile) home, where not prohibited by local codes. This appliance is only for use with
propane or natural gas. This appliance is equipped with a simple means to switch
between propane and natural gas. Field conversion by any other means including the
use of a kit is not
p
ermitted.
WARNING: This appliance is equipped
for (Natural and Propane) gas. Field
conversion is not permitted other than
between natural or propane gases.
Kozy-World ®
Printed in China WM- GFD4375KD-1103
Questions about installation, operation, or troubleshooting? Before returning to your retailer, call the
KOZY WORLD PHONE NUMBER [phone].
HEATER IS PRESET FOR PROPANE
AT FACTORY SEE INSTALLATION
INSTRUCTIONS FOR NATURAL GAS
HOOK UP.

2
TABLE OF CONTENTS
Important Safety Information ......................................................................................................................................... 3
Air For Combustion and Ventilation .............................................................................................................................. 7
Installation ................................................................................................................................................................... 10
Operation..................................................................................................................................................................... 16
Care & Maintenance.................................................................................................................................................... 21
Troubleshooting ........................................................................................................................................................... 22
Replacement Parts ...................................................................................................................................................... 25
WARNING: READ THE INSTALLATION & OPERATION INSTRUCTIONS BEFORE USING THIS
APPLIANCE.
IMPORTANT: Read instructions and warnings carefully before starting installation. Failure to follow these
instructions may result in a possible fire hazard and will void the warranty.
PRODUCT SPECIFICATIONS
MODEL NO. GFD4375KD
Input Max 32,000 BTU/Hr 32,000 BTU/Hr
Input Min 14,500 BTU/Hr 24,500 BTU/Hr
Gas Type Natural LP/Propane
Ignition Piezo Piezo
Manifold Pressure 4 in. W.C. 9 in. W.C.
Inlet Gas Pressure
Maximum 10.5 in. 14 in.
Minimum 5 in. 11 in.
Dimensions, inches (H x W x D)
Heater 29.5 in. x 29.1 in. x 15.6 in.
Carton 31.1 in. x 31.5 in. x 18.1 in.
Weight, lbs
Stove 69.5
Shipping 79.5

3
IMPORTANT SAFETY INFORMATION
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.
Only a qualified installer, service agent, or local gas supplier may install and service this product.
WARNING: Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other
appliance.
WARNING: This appliance can be used with propane or natural gas. It is shipped from the factory adjusted for
use with propane.
CARBON MONOXIDE POISONING: Early signs of carbon monoxide poisoning resemble the flu with headaches,
dizziness, or nausea. If you have these signs, the heater may not be working properly. Get fresh air immediately!
Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant
women, people with heart or lung disease, people who are anemic, those under the influence of alcohol, and those
living at high altitudes.
NATURAL AND PROPANE/LP GAS: Natural and Propane/LP gases are odorless. An odor-making agent is added
to the gas. The odor helps you detect a gas leak. However, the odor added to the gas can fade. Gas may be present
even though no odor exists. Make certain you read and understand all warnings. Keep this manual for reference. It is
your guide to operating this heater safely.
WARNING: Any change to this fireplace or its controls can be dangerous.
WARNING: Do not allow fans or any other drafts that alter burner flame to blow directly into the heater. They create
drafts that alter burner flame patterns, which can cause sooting.
WARNING: Do not use a blower insert, heat exchange insert, or other accessory not approved for use with this
heater.
Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies. Do not
place clothing or other flammable material on or near the appliance. Never place any objects in the heater. Heater
becomes very hot when running heater. Keep children and adults away from hot surfaces to avoid burns or clothing
ignition. Fireplace will remain hot for a time after shutdown. Allow surfaces to cool before touching. Carefully
supervise young children when they are in the room with the heater.
You must operate this heater with the heater screen in place. Keep the heater area clear and free from combustible
materials, gasoline, and other flammable vapors and liquids.
1. Do not place Propane/LP supply tank(s) inside any structure. Propane/LP supply tank(s) must be placed outdoors.
2. This heater needs fresh 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 7 through 9. If heater keeps shutting off, see Troubleshooting, pages 22 through 24.
3. Keep all air openings in front and bottom of heater clear and free of debris. This will ensure enough air for proper
combustion.
4. If heater shuts off. Do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced.
5. Do not run heater:
Where flammable liquids or vapors are used or stored.
Under dusty conditions.
6. Before using furniture polish, wax, carpet cleaner, or similar products, turn heater off. If heated, the vapors from
these products may create a white powder residue within burner box or on adjacent walls or furniture.

4
7. Always run heater with control knob at PILOT/IGN, LOW or HIGH locked positions. Never set control knob between
locked positions. Poor combustion and higher levels of carbon monoxide may result.
8. 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.
9. Turn off and unplug heater and let cool before servicing. Only a qualified service person should service and repair
heater.
10. Operating heater above elevations of 4,500 feet could cause pilot outage.
11. To prevent performance problems, do not use propane/LP fuel tank of less than 100 lbs. capacity.
12. This heater should not be installed in a bedroom or bathroom.
13. Do not use this heater as a wood-burning heater. Use only the logs provided with the heater.
14. To prevent the creation of soot, follow the instructions in Care and Maintenance (page 21).
15. Do not add extra logs or ornaments such as pine cones, vermiculite, or rock wool. Using these added items can
cause sooting. Do not add lava rock around base. Rock and debris could fall into the control area of heater. After
servicing, always replace screen before operating heater.
16. This heater is designed to be smokeless. If logs ever appear to smoke, turn off heater and call a qualified service
person. Note: During initial operation, slight smoking could occur due to log curing and the heater burning
manufacturing residues.
QUALIFIED INSTALLING AGENCY
Installation and replacement of gas piping, gas utilization equipment or accessories and repair and servicing of
equipment shall be performed only by a qualified agency. The term “qualified agency” means any individual, firm,
corporation, or company that either in person or through a representative is engaged in and is responsible for:
a) Installing, testing, or replacing gas piping or
b) Connecting, installing, testing, repairing, or servicing equipment; that is experienced in such work; that is familiar
with all precautions required; and that has complied with all the requirement of the authority having jurisdiction.

5
PRODUCT FEATURES
SAFETY PILOT
This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. ODS/pilot shuts off the heater
if there is not enough fresh air.
PIEZO IGNITION SYSTEM
Heater is equipped with an electronic piezo control system. This system requires 1 AAA battery (provided).
THERMOSTAT HEAT CONTROL
The control automatically cycles the burner on and off to maintain a desired room temperature. See page 19.
DUAL FUEL CAPABLE
Your heater is equipped to operate on either Propane or Natural gas. The heater is shipped from the factory ready for
connecting to Propane. The heater can easily be changed to Natural gas by having your qualified installer follow the
instructions on page 12 & 13 and the markings on the heater.
State of Massachusetts: The installation must be made by a licensed plumber or gas fitter in the
Commonwealth of Massachusetts. Sellers of unvented propane or natural gas-fired supplemental room
heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit.
In the State of Massachusetts, unvented propane or natural gas-fired space heaters shall be prohibited in
bedrooms and bathrooms.
In the State of Massachusetts the gas cock must be a T-handle type. The State of Massachusetts
requires that a flexible appliance connector cannot exceed three feet in length.
LOCAL CODES
Install and use heater with care. Follow all codes. In the absence of local codes, use the latest edition of The National
Fuel Gas Code, ANSI Z223.1, also known as NFPA 54*.
*Available from:
This heater is designed for vent-free operation. State and local codes in some areas prohibit the use of vent-free
heaters.
American National Standards Institute, lnc. National Fire Protection Association, lnc.
1430 Broadway 1 Battery march Park
New York, NY 10018 Quincy, MA 02269-9101

6
UNPACKING
1. Remove top inner pack
2. Tilt carton so that heater is upright.
3. Remove protective side packaging.
4. Slide heater out of carton.
5. Remove protective plastic wrap.
6. Hold the screen lift and pull forward.
7. Remove log set by cutting plastic.
8. Carefully un-wrap log.
9. Check for any shipping damage. If stove or log is damaged, promptly inform your dealer where you bought
the heater.
PRODUCT IDENTIFICATION
WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM HEATERS
Water vapor is a by-product of gas combustion. An unvented room heater produces approximately one (1) ounce
(30ml) of water for every 1,000 BTUs (.3kWs) of gas input per hour. An unvented room heater is recommended as a
supplemental heater (a room) rather than a primary heat source (an entire house). In most supplemental heat
applications, the water vapor does not create a problem. In most applications, the water vapor enhances the low
humidity atmosphere experienced during cold weather. The following steps will help insure that water vapor does not
become a problem:
1. Be sure the heater is the proper size for the application, including adequate combustion air and circulation air.
2. If there is high humidity, the dehumidifier may be used to help lower the water vapor content of the air.
3. Do not use an unvented room heater as the primary heat source.
Figure 1

7
AIR FOR COMBUSTION AND VENTILATION
WARNING: If the area in which the heater may be operated does not meet the required volume for indoor
combustion air, combustion and ventilation air shall be provided by one of the methods described in the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, the International Fuel Gas Code, or applicable local codes.
PRODUCING ADEQUATE VENTILATION
All spaces in homes fall into one of the three following ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 8 through 10 will help you classify your space and provide adequate ventilation.
Confined and Unconfined Space
A confined space is a space whose volume is less than 50 cubic feet per 1,000 BTU per hour (4.8 cubic meters per
kw) of the aggregate input rating of all appliances installed in that space and an unconfining space as a space whose
volume is not less than 50 cubic feet per 1,000 BTU per hour (4.8 cubic meters 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.
This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for
adequate combustion and ventilation air.
Adjoining rooms are connecting only if there are door less passageways or ventilation grills between them
Unusually Tight Construction
The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation. However,
in buildings of unusually tight construction, you must provide additional fresh air.
Unusually tight construction is defined as construction where:
a) walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of one
perm (6x10
-11
kg per pa-sec-m
2
) or less with openings gasketed or sealed and
b) Weather stripping has been added on windows that can be opened and on 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.
If your home meets all of the three criteria above, you must provide additional fresh air. See “Ventilation Air from
Outdoors” (page 9). If your home does not meet all of the three criteria above, proceed to “Determining Fresh-Air Flow
for Heater Location:

8
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION
Determining if You Have a Confined or Unconfined Space
Use this worksheet to determine if you have a confined or unconfined space.
Space: Includes the room in which you will install heater plus any adjoining rooms with door less passageways or
ventilation grills between the rooms.
1. Determine the volume of the space Length × Width × Height = cu. ft. (volume of space)
Example: Space size 20 ft. (length) × 16 ft. (width) × 8 ft. (ceiling height) =2560 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the
total volume of the space.
2. Divide the space volume by 50 cubic feet to determine the maximum BTU/hr the space can support.
__________(Volume of space) ÷ 50 cu. ft. = (Maximum BTU/hr the space can support)
Example: 2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 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 _____________ BTU/hr
Gas water heater* _____________ BTU/hr
Gas furnace _____________ BTU/hr
Vented gas heater _____________ BTU/hr
Gas heater logs _____________ BTU/hr
Other gas appliances*+ _____________ BTU/hr
Total = _____________ BTU/hr
*Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the
outdoors.
4. Compare the maximum BTU/hr the space can support with the actual amount of BTU/hr used.
BTU/hr (maximum the space can support)
BTU/hr (actual amount of BTU/hr used).
Example: 51,200 BTU/hr (maximum the space can support)
56,000 BTU/hr (actual amount of BTU/hr used)
The space in the above example is a confined space because the actual BTU/hr used is more than the maximum
BTU/hr the space can support. You must provide additional fresh air. Your options are as follows:
a) Rework 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 Outdoors,”
page 9.
b) Vent room directly to the outdoors. See “Ventilation Air from Outdoors”, Page 9.
c) Install a lower BTU/hr heater if lower BTU/hr size makes room unconfined. If the actual BTU/hr used is less
than the maximum BTU/hr the space can support, the space is an unconfined space. You will need no
additional fresh air ventilation.
WARNING: If the area in which the heater may be operated does not meet the required volume for indoor
combustion air, combustion and ventilation air shall be provided by one of the methods described in the NATIONAL
FUEL GAS CODE ANSI Z223.1/NFPA 54, the INTERNATIONAL FUEL GAS CODE, or applicable local codes.
Example:
Gas water heater 30,000 BTU/hr
Vent-free heater + 26,000 BTU/hr
Total = 56,000 BTU/hr

9
Ventilation Air from Inside Building
This fresh air would come from adjoining
unconfined space. When ventilating to
an adjoining unconfined space, you must
provide two permanent openings: one
within 12 inches of 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 NFPA 54/ANSI Z223.1. Air
for Combustion and Ventilation for
required size of ventilation grills or ducts.
Ventilation Air from Outdoors
Provide extra fresh air by using ventilation
grills or duct. You must provide two
permanent openings: one within 12 inches
of the ceiling and one within 12 inches 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 NFPA 54/
ANSI Z223.1. Air for Combustion and Ventilation
for required size of ventilation grills or ducts.
IMPORTANT: Do not provide openings for
inlet or outlet air into attic if attic has a
thermostat-controlled power vent. Heated
air entering the attic will activate the
power vent. Rework worksheet, adding the
space of the adjoining unconfined space. The
combined spaces must have enough fresh air
to supply all appliances in both spaces.
Figure 2 - Ventilation Air from Inside Building
Figure 3 - Ventilation Air from Outdoors Building

10
INSTALLATION
NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating
system. Do not install this heater as your primary heat source. If you have a central heating system, you may run
system’s circulating blower while using heater. This will help circulate the heat throughout the house.
WARNING: A qualified technician must install heater. Follow all local codes.
WARNING: Never install the heater
in a bedroom or bathroom
in a recreational vehicle
Where curtains, furniture, clothing, or other flammable objects are less than 42 inches from the front, top or sides
of the heater.
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 tobacco smoke, aromatic
candles, cleaning fluids, oil or kerosene lamps, etc.) in the air exist, may cause walls to discolor.
WARNING: Maintain the minimum clearances. If you can, provide greater clearances from floor, ceiling and adjoining
side and back walls.
IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneficial, installing heater in rooms without
enough ventilation air may cause mildew to form from too much moisture. See Air for Combustion and Ventilation, pages 7
through 9.
CHECK GAS TYPE
Use only the type of gas indicated on the plate. If your gas supply cannot meet that requirement, do not install heater.
CLEARANCES TO COMBUSTIBLES
Carefully follow the instructions below. This heater is a wall mount unit designed to mount directly on a wall.
IMPORTANT: You must maintain minimum wall and ceiling clearances during installation.
The minimum clearances are shown in Figure 4. Measure from outermost point of heater.
Minimum Wall and Ceiling Clearances (see Figure 4)
A. Clearances from outermost point of heater to any
combustible side wall should not be less than 12
inches.
B. Clearances from the heater to the ceiling should
not be less than 48 inches.
Figure 4 – Minimum Clearance to Wall and Ceiling

11
CONNECTING TO GAS SUPPLY
WARNING: A qualified technician must connect heater to gas supply. Follow all local codes.
WARNING: This appliance requires a 3/8 in. NPT inlet connection to pressure regulator (see Figure 5).
CAUTION: Never connect heater directly to the gas supply. This heater requires an external regulator (not supplied). The
external regulator between the gas supply and heater must be installed.
INSTALLATION ITEMS NEEDED
Before installing heater, make sure you have the items listed below.
piping (check local codes)
sealant (resistant to propane/LP gas)
equipment shutoff valve*
test gauge connection**
sediment trap
tee joint
pipe wrench
Flexible Gas hose (check local code)
A CSA design-certified equipment shutoff valve with 1/8 in. NPT tap is an acceptable alternative to test gauge
connection. Purchase the optional CSA design certified equipment shutoff valve from your dealer.
WARNING: Never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas.
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 column for propane and between 5
and 10.5 inches of water column for natural gas. If you do not reduce incoming gas pressure, heater regulator
damage could occur. Install external regulator with the vent pointing down as shown in Figure 6. Pointing the
vent down protects it from freezing rain or sleet.
Figure 6 - External Regulator With
Vent Pointing Down
Figure 5 - Gas Regulator Location and Gas
Line Access into Stove Cabinet

12
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 ½ inch diameter or greater to allow proper volume gas to heater. If pipe is
too small, loss of pressure will occur. Installation must include an equipment shutoff valve, union, and plugged
1/8-inch NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater
(see Figure 7).
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 threads. This will prevent excess
sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.
CAUTION: Use pipe joint sealant that is resistant to gas (PROPANE or NG). We recommend that you install a
sediment trap in a supply line as shown in Figure 7. Locate sediment trap where it is within reach for cleaning and
not likely to freeze. Install in the piping system between fuel supply and heater. A sediment trap traps moisture
and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed
incorrectly, heater may not run properly.
CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting into gas piping and/or
fittings. NG Models: 5 in. to 10.5 in. W.C. Gas supplier provide external regulator for natural gas.
*Purchase the optional CSA design-certified equipment shut off valve from your dealer. See "Accessories".
CAUTION: Two gas line installations at the same time are prohibited. The access plate to the simple switching means
shall not be opened while the heater is in operation.
This appliance can be used with propane or natural gas. It is shipped from the factory adjusted for use with propane.
Only a qualified installer or service technician can perform gas selection and connecting to gas supply.
CAUTION: To avoid gas leakage at the inlet of regulator, a qualified installer or service technician must use steel
or metal hex plug with sealant.
For changing from propane to natural gas supply
1. Remove bottom screw from cover plate, see Figure 8, and rotate to expose fuel selection device.
2. For NATURAL GAS, press in knob using a flat screwdriver with a blade the width of a quarter and turn knob
clockwise until the knob locks into the NG position (see Figure 9). Fuel selection device must be locked into the
NG position. Do not operate heater between locked positions!
3. Rotate and close cover over fuel selection device and reinstall screw.
4. Remove steel or metal hex plug (with wrench provided) from natural gas inlet of regulator and install into LP inlet of
regulator, use thread sealant to assure there are no leaks.
Figure 7 – Gas Connection

13
For changing from natural gas supply to propane supply
1. Remove bottom screw from cover plate, see figure 8, and rotate to expose fuel selection device.
2. For PROPANE GAS, press in knob using a flat screw driver with a blade the width of a quarter and turn knob
counterclockwise until the knob locks into the LP position (see Figure 10). Fuel selection device must be
locked into either the LP position or the NG position.
3. Rotate and close cover over fuel selection device and reinstall screw.
4. Remove hex plug from LP gas inlet of regulator and install into NG inlet of regulator, use thread sealant to assure
there are no leaks.
Figure 8
Figure 9
Figure 10

14
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks
immediately.
WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints.
Bubbles forming show a leak. Correct all leaks immediately.
CAUTION: Make sure external regulator has been installed between gas supply and heater. See guidelines
under “Connecting to Gas Supply” (page 11).
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG (3.5kPa)
1. Disconnect heater 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 either using compressed air or opening gas supply tank valve.
4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles forming
show a leak.
5. Correct all leaks immediately.
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 11).
2. Pressure supply piping system by either using compressed air or opening gas supply tank valve.
3. Check all joints from gas meter to equipment shutoff valve (see Figure 12). Apply mixture of liquid soap and water to
gas joints. Bubbles forming show a leak.
4. Correct all leaks immediately.
Pressure Testing Heater Gas Connections
1. Open equipment shutoff valve (see Figure 11).
2. Open gas supply tank valve.
3. Make sure control knob of heater is in the OFF position.
4. Check all joints from equipment shutoff valve to control valve (Figure 12). Apply mixture of liquid soap and water to
gas joints. Bubbles forming show a leak.
5. Light heater (see Operation, page 16).Check all other Internal joints for leaks.
6. Turn off heater (see To Turn off Gas to Appliance, Page 18).
Figure 11 – Equipment Shutoff Valve
Figure 12- Checking Gas Joints

15
INSTALLING LOGS
STEP 3: Install log 4 onto the two slots in front plate.
STEP 2: Install log 2 onto the two slots in left plate.
A
nd install log 3 onto the two slots in right plate.
STEP 1: Install log 1 onto the two slots in middle plate.
A
ll logs
STEP 4: Insert the recessed holes bottom of log 5
onto the pins on log 2 and 4. Insert the recessed
holes bottom of log 6 onto the pins on log 1 and 3.
WARNING: Failure to position the
parts in accordance with these diagrams or
failure to use only parts may result in
property damage or personal injury.
CAUTION: After installation and
periodically thereafter, 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
according to the log installation instructions
in this manual. Flames contacting logs will
create soot.
Figure 13-Installing Log Set
IMPORTANT: Make su
r
e log does not cove
r
any burner ports
(see Figure 13). It is very important. To install the logs exactly as
instructed. Do not modify logs. Only use logs supplied wall heater.

16
OPERATION
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.
NOTICE: During initial operation of new heater, burning logs will give off a paper burning smell. Orange flame will
also be present. Open a window to vent smell. This will last only few hours.
CAUTION: Do not try to adjust heating levels by using the equipment shutoff valve.
A. This appliance has a pilot which must be lit by the electronic ignitor. 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 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
C. Use only your hand to push control. Never use tools. If the appliance does not operate, don’t try to repair it.
Call a qualified service technician or gas supplier. Forced or attempted repair may result in 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.
Note: Please wait one minute after shutting off fireplace to allow the control valve to reset before starting again.

17
LIGHTING INSTRUCTIONS
Unscrew ignitor cap and install a AAA battery with the + pointing out. Replace cap.
1. STOP! Read the safety information on page 16.
2. Warning: You must operate this heater with the screen in place. Make sure screen is installed before running heater.
3. Turn control knob clockwise to the OFF position, see Figure 16A.
4. Wait five (5) minutes to clear out any gas. Then smell for gas around heater and near floor. If you smell gas,
STOP! Follow "B" in the safety information on Warnings plate. If you don't smell gas, go to the next step.
5. Turn control knob counterclockwise to the PILOT position. Keep control knob pressed in for five (5) seconds.
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. 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.
6. With control knob pressed in, push down and release ignitor button. This will light pilot. The pilot is attached to
the rear of the front burner. If needed, keep pressing ignitor button until pilot lights. 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.
7. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. 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. Warning Make sure while the input gas type is NG, pilot burner NG ignites; while the input type is LP, pilot
burner LP ignites. Note: If you find anything abnormal in this step, repeat steps 2 through 8.
9. Turn control knob counterclockwise to the desired heating level. The main burner should light. Set control knob
to any heat level between HI and LO (5 –1).
THERMOSTATIC CONTROL OPERATION
Note: The thermostat sensing bulb measures the temperature (depending on housing construction, the thermostatic
control used on this model differs from standard thermostats. The thermostatic control used on this model differs from
standard thermostats. Standard thermostats simply turn the burner on and off. The thermostat used on this heater
senses the room temperature. 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 comfort level between HIGH (5) and LOW (1).

18
TO TURN OFF GAS TO APPLIANCE
Shut off heater
Turn Control Knob clockwise to the OFF position. Do not force.
MANUAL LIGHTING PROCEDURE
(Match light)
1. Open screen.
2. Follow steps 1 through 5 under Lighting Instructions.
3. With Control Knob in PILOT position, strike match, and
hold near pilot. Press in Control Knob; pilot should light.
4. Keep Control Knob pressed in for 30 seconds after
lighting pilot. After 30 seconds, release Control Knob.
5. Make sure the heater screen is in place before operating heater.
BATTERY INSTRUCTIONS
• Batteries are included.
• Remove batteries when depleted.
• Install/replace the batteries according to the type and quantity stated in table below.
• Do not mix old and new batteries. New batteries should be the same brand for best results.
• Be sure to observe proper polarity (+/-) when installing or replacing the batteries. Damage due to improper
battery installation may void the warranty on the product.
• For remote control systems, maximize battery life by turning off the receiver when it is not in use.
• For long periods of non-operation, remove batteries from all components for safety.
Component Type of
Battery
Battery
Qty.
Ignitor AAA 1
Remote Control AAA 2 or 3*
Remote
Receiver AA 4
*Note: Quantity depends on model of remote control.
Figure 16A - ON/OFF Switch location

19
LIGHTING INSTRUCTIONS
1. STOP! Read the safety information on the front and back of the warning plate on page 16.
2. Make sure manual shutoff valve is fully open.
3. Unscrew ignitor cap and install an AAA type battery with the anode (+) pointing out. Replace cap.
4. Install two (2) AAA size batteries in the remote transmitter.
5. Be sure the slide switch on the front of the receiver box is in the REMOTE position.
6. Push in the control knob slightly and turn clockwise to the OFF position.
7. Wait five (5) minutes to clear out out any gas. Then smell for gas around the heater and near the floor. If you
smell gas, STOP! Follow "B" in the safety information on the rating plate. If you do not smell gas, go to the next
step.
8. Push the control knob in slightly and turn counterclockwise to “PILOT” position and depress for five (5) seconds.
Note: The first time the heater is operated after connecting the gas supply, the control knob should be depressed
for about thirty (30) seconds. This will allow gas to bleed from the gas system.
9. With the control knob pushed in, push down and release the ignitor button.This will light the pilot. If needed, keep
pressing the ignitor button until pilot lights.
10. Continue pushing the control knob in for an additional sixty (60) seconds to allow the thermocouple to warm up and
to allow air to bleed from the gas system. Release the control knob.
Note: If the pilot goes out, repeat steps 7, 8, 9 and 10.
11. Rotate the control knob counterclockwise to the ON position.
12. Press the LEARN BUTTON on the front of the remote receiver box until you hear a beep.
13. Press the ON button on the remote control transmitter to light the burner. (This will also “learn”, or program, the
transmitter and the receiver).
14. If the transmitter is lost or damaged, the slide switch on the receiver can be used to operate the heater.
TO TURN OFF GAS TO APPLIANCE
Shutting off heater
1. Press the OFF button to let pilot stay.
2. Turn gas control knob clockwise to OFF position to shut off burner.
Figure 16B - ON/OFF Switch location

20
INSPECTING BURNERS
Check pilot flame pattern and burner flame patterns often.
PILOT FLAME PATTERN
1. Turn control knob to pilot position
2. Inspect pilot flame and refer to Figure 17 and 18.
Figure 17shows a correct pilot flame pattern.
Figure 18 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 the pilot flame is incorrect, as shown in Figure 18.
Turn heater off (see To Turn off Gas to Appliance, page 19) See troubleshooting, page 22-24.
BURNER FLAME PATTERN
Figure 19 shows a correct burner flame pattern. Figure 20 shows an incorrect burner flame pattern. If pilot flame
pattern is incorrect then:
Turn heater off (see “To Turn off Gas to Appliance,” page 19).
See Troubleshooting, pages 22 through 24.
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the holes in the fitting at the entrance to the burner. These holes may become
blocked with dust or lint. Periodically inspect these holes for any blockage and clean as necessary. Blocked air holes
will create soot.
Figure 27 -Correct Pilot Flame Pattern Figure 28 -Incorrect Pilot Flame Pattern
Figure 19- Correct Flame Pattern with
Control Knob Set to High Flame (5)
Figure 20 - Incorrect Flame Pattern with
Control Knob Set to High Flame (5)