Desa VGC18NR Owner's Manual

Also see for EC18NR: Instruction manual

Contents

Desa VGC18NR Owner's Manual Manual pdf 6 page image

www.desatech.com 122526-01B6OpERATIONThis heater is clean burning. It requires nooutside venting. There is no heat loss out avent or up a chimney. Heat is generated byboth realistic flames and glowing coals. Thisheater is designed for vent-free operationwith flue damper closed. It has been testedand approved to ANSI Z21.11.2 standard forunvented heaters. State and local codes insome areas prohibit the use of vent-free heat-ers. This heater may also be operated as avented decorative (ANSI Z21.60) product byopening the flue damper.PRODUCT FEATURESSAFETY DEVICEThis heater has a pilot with an Oxygen Deple-tion Sensing (ODS) safety shutoff system. TheODS/pilot is a required feature for vent-freeroom heaters. The ODS/pilot shuts off theheater if there is not enough fresh air.ELECTRONIC IGNITION SYSTEMThis heater has an electronic ignitor to lightheater fuel supply.AIR FOR COMbUSTION AND VENTILATIONWARNING: This heater shallnot be installed in a room or spaceunless the required volume ofindoor combustion air is providedby the method described in theNational Fuel Gas Code, ANSIZ223.1/NFPA 54, the InternationalFuel Gas Code, or applicablelocal codes. Read the followinginstructions to insure proper freshair for this and other fuel-burningappliances in your home.Today’s homes are built more energy efficientthan ever. New materials, increased insulationand new construction methods help reduceheat loss in homes. Home owners weatherstrip and caulk around windows and doors tokeep the cold air out and the warm air in. Dur-ing heating months, home owners want theirhomes as airtight as possible.While it is good to make your home energyefficient, your home needs to breathe. Freshair must enter your home. All fuel-burning ap-pliances need fresh air for proper combustionand ventilation.Exhaust fans, fireplaces, clothes dryers andfuel burning appliances draw air from the houseto operate. You must provide adequate freshair for these appliances. This will insure properventing of vented fuel-burning appliances.PROVIDING ADEQUATEVENTILATIONThe following are excerpts from National FuelGas Code, ANSI Z223.1/NFPA 54, Air forCombustion and Ventilation.All spaces in homes fall into one of the threefollowing ventilation classifications:1. Unusually Tight Construction2. Unconfined Space3. Confined SpaceThe information on pages 6 through 8 will helpyou classify your space and provide adequateventilation.Unusually Tight ConstructionThe air that leaks around doors and windowsmay provide enough fresh air for combustionand ventilation. However, in buildings of un-usually tight construction, you must provideadditional fresh air.Unusually tight construction is defined asconstruction where:a. walls and ceilings exposed to the out-side atmosphere have a continuouswater vapor retarder with a rating ofone perm (6 x 10-11 kg per pa-sec-m2) orless with openings gasketed or sealedandb. weather stripping has been added onopenable windows and doors andc. caulking or sealants are applied toareas such as joints around windowand door frames, between sole platesand floors, between wall-ceiling joints,between wall panels, at penetrationsfor plumbing, electrical and gas linesand at other openings.If your home meets all of the three criteriaabove, you must provide additional fresh air.See Ventilation Air From Outdoors, page 8.If your home does not meet all of the threecriteria above, proceed to Determining Fresh-Air Flow For Heater Location, page 7.