www.desatech.com 110021-01S20LIGHTINGINSTRUCTIONSWARNING:• If fireplace has glass doors,never operate this heater withglass doors closed. If you op-erate heater with doors closed,heat buildup inside fireplacewill cause glass to burst. Makesure there are no obstructionsacross openings of fireplace.• You must operate this heaterwith a fireplace screen inplace. Make sure fireplacescreen is closed before run-ning heater.NOTICE: During initial operationof new heater, burning logs willgive off a paper-burning smell.Orange flame will also be pres-ent. Open damper or window tovent smell. This will only last afew hours.Note: Home owners generally prefer to oper-ate their heater with the chimney damperclosed. This will put all the heat into the room.However, there may be times you will desirethe full flames of the HI heat setting but willfind the heat output excessive. You can openthe chimney damper (if you have one) fully orpartially to release some of the heat.WARNING: Damper handlewill be hot if heater has beenrunning.1. STOP! Read the safety information incolumn 1.2. Make sure equipment shutoff valve is fullyopen.3. Turn control knob clockwise to theOFF position.4. Wait five (5) minutes to clear out any gas.Then smell for gas, including near thefloor. If you smell gas, STOP! Follow “B”in the safety information in column 1. Ifyou don’t smell gas, go to the next step.OPERATIONTHERMOSTAT-CONTROLLED MODELSFOR YOUR SAFETYREAD BEFORE LIGHTINGWARNING: If you do not fol-low these instructions exactly,a fire or explosion may resultcausing property damage, per-sonal injury or loss of life.A. This appliance has a pilot which mustbe lighted by hand. When lightingthe pilot, follow these instructionsexactly.B. BEFORE LIGHTING smell all aroundthe appliance area for gas. Be sure tosmell next to the floor because somegas is heavier than air and will settleon the floor.WHAT TO DO IF YOU SMELL GAS• Do not try to light any appliance.• Do not touch any electric switch; donot use any phone in your building.• Immediately call your gas supplierfrom a neighbor’s phone. Follow thegas supplier’s instructions.• If you cannot reach your gas supplier,call the fire department.C. Use only your hand to push in or turnthe gas control knob. Never use tools.If the knob will not push in or turn byhand, don’t try to repair it, call a quali-fied service technician or gas supplier.Force or attempted repair may result ina fire or explosion.D. Do not use this appliance if any parthas been under water. Immediatelycall a qualified service technician toinspect the appliance and to replaceany part of the control system andany gas control which has been underwater.