Desa CHL3924NR Owner's Operation And Installation Manual

Also see for CCL3018NR: OWNER'S OPERATION AND INSTALLATION MANUAL OWNER'S OPERATION AND INSTALLATION MANUAL

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Desa CHL3924NR Owner's Operation And Installation Manual Manual pdf 10 page image

www.desatech.com 111161-01H10INSTALLATIONContinuedFigure 5 - Heat Resistant Material (Slate,Marble, Tile, etc.) Above FireplaceIf Using MantelYou must have noncombustible material(s) abovethe fireplace opening. Noncombustible materials(such as slate, marble, tile, etc.) must be at least1/2" thick. With sheet metal, you must have non-combustible material behind it. Noncombustiblematerial must extend at least 8" up (for all models).If noncombustible material is less than 12", youmust install the fireplace hood accessory (24" and30" models only). Even if noncombustible materialis more than 12", you may need the hood acces-sory to deflect heat away from your mantel shelf.See Figure 5 and Figures 6 and 7 on page 9 forminimum clearances.IMPORTANT: If you cannot meet these minimumclearances, you must operate heater with chimneyflue damper open. Go to Installing Damper ClampAccessory for Vented Operation, page 11.Noncombustible Requirements forMaterial Safe InstallationDistance (A)1" or more Noncombustible materialokay.Between 8" Install fireplace hoodand 1" accessory (GA6050,GA605 or GA6053 seeAccessories, page 34).Less than 8" Noncombustible materialmust be extended to atleast 8". See Between 8"and 1", above. If youcannot extend material,you must operate heaterwith flue damper open.Heat ResistantMaterial(A)MANTEL CLEARANCESIn addition to meeting noncombustible materialclearances, you must also meet required clearancesbetween fireplace opening and mantel shelf. Ifyou do not meet the clearances listed below, youwill need a hood.Determining Minimum Mantel ClearancesIf you meet minimum clearance between mantelshelf and top of fireplace opening, a hood is notrequired (see Figure 6).Determining Minimum Mantel ClearancesWhen Using a HoodIf minimum clearances in Figure 6 are not met, youmust have a hood. When using a hood there arestill certain minimum mantel clearances required.Follow minimum clearances shown in Figure 7,page 11, when using hood.NOTICE: Surface temperaturesof adjacent walls and mantels be-come hot during operation. Wallsand mantels above the fireboxmay become hot to the touch.If installed properly, these tem-peratures meet the requirementsof the national product standard.Follow all minimum clearancesshown in this manual.Figure 6 - Minimum Mantel ClearancesWithout Using HoodMinimumNoncombustibleMaterialMinimumNoncombustibleMaterial HeightDistances toUnderside ofMantelTop of FireplaceOpeningUndersideof MantelShelfMantel Shelf12"8"(A)18"8"20"14"22"17"24"20"All minimumdistancesare in inchesLog Set24"/30"Models18" Model2 1/2"6"8"10"