www.desatech.com119426-01A 5PRODUCTIDENTIFICATIONFigure 1 - Product IdentificationBaseAssemblyControl KnobIgnitorModel VULSeries LogsControlKnob BaseAssemblyIgnitorRear BurnerFlameAdjustmentKnobRemoteControl(Optional)OPTIONAL REMOTECONTROL ACCESSORIESThere are four optional remote controls thatcan be purchased separately for Remote-ReadyModels Only:• wall switch • hand-held ON/OFF remote• wall thermostat • hand-held thermostat remoteSee Accessories, page 42.The wall thermostat or hand-held thermostat may notbe used where vented decorative listing is required.PRODUCT FEATURESOPERATIONThis heater is clean burning. It requires no outsideventing. There is no heat loss out a vent or up achimney. Heat is generated by both realistic flamesand glowing coals. This heater is designed for vent-free operation with flue damper closed. It has beentested and approved to ANSI Z21.11.2 standard forunvented heaters. State and local codes in someareas prohibit the use of vent-free heaters. Thisheater may also be operated as a vented decorative(ANSI Z21.60) product by opening the flue damper(Non-Thermostat Models Only).SAFETY 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.ELECTRONIC IGNITION SYSTEMThis heater has an electronic ignitor to light heaterfuel supply.Model CRB andHRB Series LogsLOCAL CODESInstall and use heater with care. Follow all localcodes. In the absence of local codes, use the lat-est edition of The 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 installa-tion must be made by a licensed plumberor gas fitter in the Commonwealth ofMassachusetts.Sellers of unvented propane or naturalgas-fired supplemental room heaters shallprovide to each purchaser a copy of 527CMR 30 upon sale of the unit.Vent-free gas products are prohibited forbedroom and bathroom installation in theCommonwealth of Massachusetts.