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112157-01A
3
3
For more information, visit www.desatech.com
For more information, visit www.desatech.com
SAFETY INFORMATION
UNPACKING
PRODUCT IDENTIFICATION
PRODUCT FEATURES
SAFETY INFORMATION
Continued
PRODUCT IDENTIFICATION
PRODUCT FEATURES
SAFETY DEVICE
This heater has a pilot with an Oxygen Depletion Sensing (ODS)
safety shutoff system. The ODS/pilot is a required feature for vent-
free room heaters. The ODS/pilot shuts off the heater if there is not
enough fresh air.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system requires no matches,
batteries, or other sources to light heater.
THERMOSTATIC HEAT CONTROL
Thermostat models have a thermostat sensing bulb and a control
valve. This results in the greatest heater comfort. This can also result
in lower gas bills.
Figure 1 - Vent-Free Gas Heater
Control Knob
Piezo Ignitor
Button
Glass
Panel
Grill
Guard
Front
Panel
Heater
Cabinet
Installation and repair should be done by a qualified
service person. The appliance should be inspected
and serviced before use and at least annually by a
professional service person. More frequent cleaning
may be required due to excessive lint from carpeting,
etc. It is imperative that control compartments, burn-
ers and circulating air passageways of the appliance
be kept clean.
1. This appliance is only for use with the type of gas indicated on
the rating plate. This appliance is not convertible for use with
other gases.
2. Do not place propane/LP supply tank(s) inside any structure.
Locate propane/LP supply tank(s) outdoors.
3. Do not install in a bedroom or a bathroom.
4. 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
5. This heater needs fresh, outside air ventilation to run properly.
This heater has an Oxygen Depletion Sensing (ODS) safety
shutoff system. The ODS shuts down the heater if not enough
fresh air is available. See Air for Combustion and Ventilation,
pages 4 through 6.
6. Keep all air openings in the front and bottom of heater clear and
free of debris. This will insure enough air for proper combustion.
7. If heater and pilot shuts off unexpectedly, do not relight the
pilot until you provide fresh, outside air. If heater keeps shut-
ting off, have it serviced.
8. Do not run heater
• where flammable liquids or vapors are used or stored
• under dusty conditions
9. Before using furniture polish, wax, carpet cleaner, or similar
products, turn heater off. If heated, the vapors from these prod-
ucts may create a white powder residue within burner box or
on adjacent walls or furniture.
10. Do not use heater if any part has been under water. Immedi-
ately 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 heater and let cool before servicing. Only a qualified
service person should service and repair heater.
12. Operating heater above elevations of 4,500 feet (1 370 m) could
cause pilot outage due to lower levels of oxygen in the air.
13. To prevent performance problems, do not use propane/LP fuel
tank of less than 100 lbs. (45 kg) capacity.
Piezo Ignitor
Button
Control Knob
6,000/10,000 Btu/Hr
20,000 Btu/Hr
14. Provide adequate clearances around air openings.
15. Before using the heater, provide adequate ventilation. An area
of 10 square inches (65 cm
2
) of opening of a window or roof
vent is needed for adequate combustion and ventilation air.
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 inform dealer where you bought heater.