www.desatech.com 114683-01D412. Operating heater above elevations of 4,500feet could cause pilot outage.13. To prevent performance problems, do notuse propane/LP fuel tank of less than 100lbs. capacity.14. Provide adequate clearances around airopenings.LOCAL CODESInstall and use heater with care. Follow all lo-cal codes. In the absence of local codes, use thelatest edition of National Fuel Gas Code, ANSIZ223.1/NFPA 54*.*Available from:American National Standards Institute, Inc.1430 BroadwayNew York, NY 10018National Fire Protection Association, Inc.Batterymarch ParkQuincy, MA 02269State of Massachusetts: The installation mustbe made by a licensed plumber or gas fitter inthe Commonwealth of Massachusetts.Sellers of unvented propane or natural gas-firedsupplemental room heaters shall provide toeach purchaser a copy of 527 CMR 30 uponsale of the unit.Vent-free gas products are prohibited for bed-room and bathroom installation in the Com-monwealth of Massachusetts.UNPACkING1. Remove heater from carton.2. Remove all protective packaging applied toheater for shipment.3. Check heater for any shipping damage. Ifheater is damaged, promptly inform dealerwhere you bought heater.SAFETY INFORMATIONContinuedFigure 1 - Vent-Free Gas HeaterIgnitor ButtonControl KnobHeaterCabinetFront Panel Heat ShieldGrill GuardPRODUCTIDENTIFICATIONPRODUCT FEATURESSAFETY DEvICEThis heater has a pilot with an Oxygen Deple-tion Sensing (ODS) safety shutoff system. TheODS/pilot is a required feature for vent-free roomheaters. The ODS/pilot shuts off the heater if thereis not enough fresh air.PIEzO IGNITION SYSTEMThis heater has a piezo ignitor. This system re-quires no matches, batteries or other sources tolight heater.THERMOSTATIC HEAT CONTROLThermostat models have a thermostat sensingbulb and a control valve. This results in the great-est heater comfort. This can also result in lowergas bills.