www.desatech.com 111161-01E8WARNING: Seal any freshair vents or ash clean-out doorslocated on floor or wall of fire-place. If not, drafting may causepilot outage or sooting. Use aheat-resistant sealant. Do notseal chimney flue damper.WARNING: Never install theheater• in a bedroom or bathroomunless installed as a ventedappliance, see page 11.• in a recreational vehicle• where curtains, furniture,clothing or other flammableobjects are less than 42 inchesfrom the front, top or sides ofthe heater• in high traffic areas• in windy or drafty areasCAUTION: This heater cre-ates warm air currents. Thesecurrents move heat to wall sur-faces next to heater. Installingheater next to vinyl or cloth wallcoverings or operating heaterwhere impurities (such as, butnot limited to, tobacco smoke,aromatic candles, cleaning flu-ids, oil or kerosene lamps, etc.) inthe air exist, may discolor wallsor cause odors.IMPORTANT: Vent-free heaters add moisture tothe air. Although this is beneficial, installing heaterin rooms without enough ventilation air may causemildew to form from too much moisture. See Airfor Combustion and Ventilation, page 5.CHECK GAS TYPEUse the correct gas type (natural or propane/LP)for your unit. If your gas supply is not correct, donot install heater. Call dealer where you boughtheater for proper type heater.INSTALLATIONNOTICE: This heater is intendedfor use as supplemental heat.Use this heater along with yourprimary heating system. Do notinstall this heater as your pri-mary heat source. If you have acentral heating system, you mayrun system’s circulating blowerwhile using heater. This will helpcirculate the heat throughout thehouse. In the event of a poweroutage, you can use this heateras your primary heat source.NOTICE: State or local codesmay only allow operation of thisappliance in a vented configura-tion. Check your state or localcodes.WARNING: A qualified ser-vice person must install heater.Follow all local codes.WARNING: Make sure theselector switch is in the OFF po-sition before installing heater.WARNING: Before installingin a solid fuel burning fireplace,the chimney flue and fireboxmust be cleaned of soot, creo-sote, ashes and loose paint by aqualified chimney cleaner. Creo-sote will ignite if highly heated.A dirty chimney flue may createand distribute soot within thehouse. Inspect chimney flue fordamage. If damaged, repair fluebefore operating heater.