104415-01HFor more information, visit www.desatech.comFor more information, visit www.desatech.com1717OPERATING HEATER (THERMOSTAT-CONTROLLED MODELS)To Turn Gas Off To ApplianceThermostat Control OperationManual Lighting ProcedureOPERATING HEATER (MANUALLY-CONTROLLED MODELS)For Your Safety Read Before LightingLighting InstructionsTO TURN OFF GAS TO APPLIANCE1. Follow steps 1 through 5 under Lighting Instructions, page 16.2. Depress control knob and light pilot with match.3. Keep control knob pressed in for 30 seconds after lightingpilot. After 30 seconds, release control knob. Now followstep 8, page 16.CAUTION: Do not try to adjust heating levels byusing the equipment shutoff valve.OPERATING HEATERContinuedShutting Off HeaterTurn control knob clockwise to the OFF position.Shutting Off Burners Only (pilot stays lit)Turn control knob clockwise to the PILOT position.THERMOSTAT CONTROLOPERATIONThe thermostat control knob can be set to any comfort levelbetween HI and LO. The thermostat will gradually modulate theheat output and flame height from higher to lower settings, orpilot, in order to maintain the comfort level you select. The idealcomfort setting will vary by household depending upon the amountof space to be heated, the output of the central heating system, etc.Note: Selecting the HI setting with the control knob will cause theburner to remain fully on, without modulating down in most cases.MANUAL LIGHTING PROCEDUREWARNING: If you do not follow these instructionsexactly, a fire or explosion may result causing prop-erty 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 areafor gas. Be sure to smell next to the floor because some gasis heavier than air and will settle on the floor.WARNING:• If fireplace has glass doors, never operate thisheater with glass doors closed. If you operateheater with doors closed, heat buildup inside fire-place will cause glass to burst. Also if fireplaceopening has vents at the bottom, you must openthe vents before operating heater.• You must operate this heater with a fireplace screenin place. Make sure fireplace screen is closedbefore running heater.NOTICE: During initial operation of new heater, burn-ing logs will give off a paper-burning smell. Orangeflame will also be present. Open damper or window tovent smell. This will only last a few hours.Note: Home owners generally prefer to operate their heaterwith the chimney damper closed. This will put all the heat intothe room. However, there may be times you will desire the fullflames of the High heat setting but will find the heat outputexcessive. You can open the chimney damper (if you have one)fully or partially to release some of the heat.WARNING: Damper handle will be hot if heater hasbeen running.1. STOP! Read the safety information starting in column 1.2. Make sure equipment shutoff valve is fully open.3. Press in and turn control knob clockwise to theOFF position.FOR YOUR SAFETY READBEFORE LIGHTINGWHAT TO DO IF YOU SMELL GAS• Do not try to light any appliance.• Do not touch any electric switch; do not use any phone inyour building.• Immediately call your gas supplier from a neighbor’sphone. Follow the gas supplier’s instructions.• If you cannot reach your gas supplier, call the fire de-partment.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 byhand, don’t try to repair it, call a qualified service techni-cian or gas supplier. Force or attempted repair may resultin a fire or explosion.D. Do not use this appliance if any part has been under water.Immediately call a qualified service technician to inspectthe appliance and to replace any part of the control systemand any gas control which has been under water.LIGHTING INSTRUCTIONSMANUALLY-CONTROLLED MODELS