Desa EFS33NRA Owner's Operation And Installation Manual

Also see for EFS33NR: OWNER'S OPERATION AND INSTALLATION MANUAL

Contents

www.desatech.com 107172-01K8INSTALLATIONNOTICE: 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.WARNING: Never install thefireplace• in a bedroom or bathroom• in a recreational vehicle• where curtains, furniture, cloth-ing or other flammable objectsare less than 42 inches from thefront, 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.Note: Your fireplace is designed to be used in zeroclearance installations. Wall or framing materialcan be placed directly against any exterior surfaceon the rear, sides or top of your fireplace, exceptwhere standoff spacers are integrally attached. Ifstandoff spacers are attached to your fireplace,these spacers can be placed directly against wallor framing materials.Use the dimensions shown for rough openings tocreate the easiest installation. See Built-In Fire-place Installation, page 11.IMPORTANT: Vent-free heaters add moisture tothe air. Although this is beneficial, installing fire-place in rooms without enough ventilation air maycause mildew to form from too much moisture.See Air for Combustion and Ventilation, pages 6.IMPORTANT: Make sure the fireplace is level.If fireplace is not level, log set will not workproperly.CHECK GAS TYPEUse the correct gas type (natural or propane/LP)for your fireplace. If your gas supply is not cor-rect, do not install fireplace. Call dealer where youbought fireplace for proper type fireplace.Figure 4 - Ventilation Air from OutdoorsVentilation Air From OutdoorsProvide extra fresh air by using ventilation grills orducts. You must provide two permanent openings:one within 12" of the ceiling and one within 12"of the floor. Connect these items directly to theoutdoors or spaces open to the outdoors. Thesespaces include attics and crawl spaces. Follow theNational Fuel Gas Code, ANSI Z223.1/NFPA 54,Section 5.3, Air for Combustion and Ventilation forrequired size of ventilation grills or ducts.IMPORTANT: Do not provide openings for inletor outlet air into attic if attic has a thermostat-controlled power vent. Heated air entering the atticwill activate the power vent.AIR FOR COMBUSTIONAND VENTILATIONContinuedOutletAirVentilatedAtticOutletAirInletAirInlet Air VentilatedCrawl SpaceToCrawlSpaceTo Attic