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3.5 Floor Support and Protection <br /> • Floor protection in front of the fireplace is not required. _ 12" <br /> Combustible material may be used if installing a hearth (305mm) <br /> extension.Consider the thickness of the hearth extension 14" <br /> finishing material if building a fireplace platform.The bottom (356mm) I� <br /> of the fireplace must be level with finished hearth extension <br /> for proper fit of the safety barrier. <br /> • If this appliance is to be installed directly on carpeting,tile, 41/4" <br /> or other combustible material other than wood flooring, (108mm) <br /> this appliance shall be installed on a metal or wood panel <br /> extending the full width and depth of the appliance. <br /> • If the appliance is to be installed above floor level,a <br /> solid,continuous platform must be constructed below the <br /> appliance. <br /> 42" <br /> 3.6 Recess Construction (1067mm) <br /> WARNING:All clearances to venting must be maintained. <br /> Mounting a television above a fireplace has become a common <br /> r <br /> practice.Television surface temperatures are affected by mantel <br /> depth,ceiling heights,and wall and mantel construction material. <br /> Most television manufacturers specify in their instructions that a <br /> television should not be installed on,near,or above a heat source. FIREPLACE ENCLOSURE FLOOR <br /> Television location rests solely on the homeowner. It is the home <br /> owner's responsibility that the preferred TV mounting and mantel Figure 3.6,Framing Clearances for Recess Construction <br /> design will not exceed the listed maximum operation temperature <br /> of their electronic goods. <br /> Tests performed determined that surface temperatures did <br /> not exceed 150°F(66°C)when a 4'/a in(108mm)deep recess <br /> is constructed above the fireplace.See illustrations below. <br /> 41/a" <br /> ! (108mm) <br /> t r <br /> 33W 4Y <br /> (851mm) (1067mm) <br /> 34x. <br /> (876mm) <br /> 14" <br /> (356mm) <br /> Figure 3.5,Recess Framing <br />