Operating Guide
3 
CAUTION: Two gas line installations at the same 
time are prohibited. The access plate to the 
switching means shall not be opened while the 
heater is in operation. 
WARNING: This appliance is for installation 
in a solid-fuel burning masonry or UL 127 factory 
build fireplace or in a listed vent less firebox 
enclosure. It has been design certifies for these 
installations. Exceptions: DO NOT install 
appliance in a factory build fireplace that includes 
instructions stating it has not been tested or 
should not be used with unvented gas logs. 
1. This heater shall not be installed in a room or 
space unless the required volume of indoor 
combustion air is provided by the method 
described in the National Fuel Gas Code, ANSI 
Z223.1/NFPA 54, the International Fuel Gas 
Code, or applicable local codes. 
2. Do not place Propane/LP supply tank(s) inside 
any structure. Propane/LP supply tank(s) must 
be placed outdoors. 
3. This heater shall not be installed in the place 
which the strong wind would shut down the 
appliance. 
Air ducts and/or ash dumps in the fireplaces shall 
be permanently closed at time of appliance 
installation.   
4. 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, 
page 8. If heater keeps shutting off, see 
troubleshooting. 
5. Keep all air openings in front and bottom of 
heater clear and free of debris. This will ensure 
enough air for proper combustion. 
6. If heater shuts off, do not relight until you have 
provided fresh air from outside. If heater keeps 
shutting off, have it serviced. 
7. Do not run heater where flammable liquids or 
vapors are used or stored under dusty 
conditions. 
8. Before using furniture polish, wax, carpet 
cleaner, or similar products, turn heater off. If 
heated, the vapors from these products may 
create a white powder residue within burner box 
or on adjacent walls or furniture. 
9. Always run heater with control knob at 
PILOT/IGN, LOW or HIGH locked positions. 
Never set control knob between locked positions, 
otherwise poor combustion and higher levels of 
carbon monoxide may be resulted. 
10. Do not use this room 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. 
11. Turn off and let heater cool down before 
servicing. Only a qualified service person should 
service and repair heater. 
12. Periodic visual check of pilot and burner 
flame, with pictorial sketches or drawings. 
13. The appliance must be isolated from the gas 
supply piping system by closing its equipment 
shut-off valve during any pressure testing of the 
gas supply piping system at test pressures equal 
to or less than 1/2 psi (3.5 kPa). 
Important Note: 
  An unvented room heater having an input 
rating of more than 10,000 Btu/hr (2,931 
W) shall not be installed in a bedroom or 
bathroom; or 
  An unvented room heater having an input 
rating of more than 6000 Btu/hr (1,758 W) 
shall not be installed in a bathroom. 










