Desa V)C36 Owner's Operation And Installation Manual

Also see for (V)C36LH: Installation instructions Installation instructions

Contents

www.desatech.com107777-01E 5HEARTH ExTENSIONA hearth extension projecting a minimum of16" in front of and a minimum of 8" beyondeach side of fireplace opening is required toprotect combustible floor construction in frontof fireplace. Fabricate a hearth extensionusing a material which meets the followingspecifications: a layer of noncombustible,inorganic material having a thermal conductiv-ity of K=0.84 BTU IN/FT, HR. F (or less) at 1"thick. For example, if material selected hasa K factor of 0.25, such as glass fiber, thefollowing formula would apply:0.25 x 1.0" = 0.30" thickness required0.84Thermal conductivity "K" of materials can beobtained from manufacturer or supplier ofnoncombustible material. If hearth extensionis to be covered, use noncombustible mate-rial such as tile, slate, brick, concrete, metal,glass, marble, stone, etc. Provide a meansto prevent hearth extension from shifting andseal gap between fireplace frame and hearthextension with a noncombustible material(see Figure 3).WARNING: Hearth extensionis to be installed only as shownin Figure 3.FIreplaCe InsTallaTIonContinuedFigure 3 - Hearth ExtensionSeal GapFireplace FrontEmber ProtectorFireplace FrontRaised HearthFireplace FrontElevatedEmber ProtectorEmber ProtectorSeal GapHearthExtensionSeal GapFireplace FrontEmber ProtectorFireplace FrontElevatedDo Not Block LouverEmber ProtectorSeal GapHearthExtensionHearth Extension, Circulating ModesHearth Extension, Noncirculating ModelsNO