www.desatech.com110398-01D 9INSTALLATIONWARNING: Never install theheater• in a bedroom or bathroomunless installed as a ventedappliance, see page 12• in a recreational vehicle• where curtains, furniture, cloth-ing, or other flammable objectsare less than 42" from the front,top, or sides of the 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 moistureto the air. Although this is beneficial, installingheater in rooms without enough ventilationair may cause mildew to form from too muchmoisture. See Air for Combustion and Ventila-tion, page 6.CHECK GAS TYPEUse only the correct type of gas (natural orpropane/LP). If your gas supply is not thecorrect gas type, do not install heater. Calldealer where you bought heater for propertype heater.WARNING: This appliance isequipped for either natural gasor propane/LP gas but not both.Gas type is indicated on the rat-ing plate. Field conversion is notpermitted.NOTICE: 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.WARNING: A qualified ser-vice person must install heater.Follow all local codes.NOTICE: State or local codes mayonly allow operation of this appli-ance in a vented configuration.Check your state or local codes.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 andfirebox for damage. If damaged,repair flue and firebox beforeoperating heater.WARNING: 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.