www.desatech.com 116292-01E412. Operating heater above elevations of 4,500feet (1,371 m) could cause pilot outage.13. To prevent performance problems, do not usepropane/LP fuel tank of less than 100 lbs. (45 kg)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 HeaterIgnitorControl Knob(under door)Heater CabinetGlass PanelProduCtIdeNtIFICatIoNProduCt 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.IGNITION SYSTEMThis heater has either a piezo ignitor or electronicignitor to light heater fuel supply.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.