Fireplace Installation
Continued
2.If fireplace is to be installed directly on carpeting, tile (other than ceramic) or any combustible material other than wood flooring, fireplace must be installed upon a metal or wood panel extending full width and depth of fireplace.
3.Set fireplace directly in front of opening and slide unit back until nailing flanges touch side framing.
4.Check the level of fireplace and shim with sheet metal if necessary.
5.Before securing fireplace to prepared framing, ember protector (provided) must be placed between hearth extension (not supplied) and under bottom front edge of fireplace to protect against glowing embers (see Figure 7). If fireplace is to be installed on a raised platform, a
Figure 6). The ember protector should be made of galvanized sheet metal (28 gauge minimum) to prevent corrosion.
6.Using screws or nails, secure fireplace to the framing through flanges located on sides of the fireplace (see Figure 8).
1/2" MIN. 
OVERLAP
1/2" MIN.
Figure 7 - Ember Protectors
1/2" |
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Minimum to |
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Combustibles |
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Nailing |
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Flanges |
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Prepared | Nails or | |
Framing | ||
Screws | ||
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Platform Must Be Solid, Flat, and Fully Supported
397/8"
Figure 8 - Nailing Flanges
Hearth Extension
A hearth extension projecting a minimum of 16" in front of and a minimum of 8" beyond each side of the fireplace opening is required
“Z” Type Metal
Safety Shields
Not Supplied
48 1/2" Min.
*
22 5/8"
to protect combustible floor construction in front of fireplace (see Figure 9, page 6). Fabricate a hearth extension using a material which meets the following specifications: a layer of noncombustible, inorganic material
*As Required by Design As Long as Ceiling Clearance is Maintaned
Figure 6 - Framing Firebox with “Z” Type
Ember Protectors
having a thermal conductivity of K=0.84 BTU IN/FT, HR. F (or less) at 1" thick. For example, if the material selected has a K factor of 0.25, such as glass fiber, the following formula would apply:
0.25x 1.0" = 0.30" thickness required
Thermal conductivity "K" of materials can be obtained from manufacturer or supplier of noncombustible material.
If hearth extension is to be raised, a “Z” type ember protector must be used (see Figure 6 and Figure 10, page 6)
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