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E. Hearth Extension
WARNING
Fire Risk.
Hearth extension required to protect combustible floors in front of appliance.
•An 8 inch minimum hearth extension must be constructed of
NAILING TABS (BOTH SIDES)
A
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| B | |
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| A | B | |
in. | 8 | |||
mm | 1045 | 203 | ||
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| in. | 8 | ||
mm | 1222 | 203 | ||
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Figure 3.6 Hearth Extension Dimensions
| 8 in. |
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1 in. | (203 mm) |
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(25 mm) |
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WOOD OR OTHER | MARBLE, GRANITE, TILE OR | BOTTOM OF | |
COMBUSTIBLE |
| OTHER | |
FLOOR OR PLATFORM | HEARTH EXTENSION | FIREPLACE | |
Clearance to covered combustible hearth extension | |||
Figure 3.7 |
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| MAY BE |
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| COMBUSTIBLE |
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| MATERIAL |
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6 in.
(152 mm)5-1/4 in.
(133 mm)
| COMBUSTIBLES UP TO | |
WOOD OR OTHER | 1 INCH THICK ALLOWED | |
COMBUSTIBLE | UNDER THE OPENING | |
FLOOR OR | BOTTOM OF | |
FIREPLACE | ||
PLATFORM | ||
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Clearance to exposed combustible hearth extension
(6 inch Minimum to top surface of combustible floor or floor covering.
Figure 3.8
10 | Heat & Glo • |