Empire Blackburn 54" Hearth Extension, 6-Piece Micore Kit
The Empire WB54HE hearth extension is a six-piece kit of 1/2" Micore board for the Blackburn 54" wood burning firebox (WB5412FB0F): two 54" x 20" pieces and four 12" x 20" pieces.
Laid two layers deep, the pieces make the 78" x 20" x 1" hearth extension the installation manual shows: 54" across the front of the opening plus 12" at each side. Per the installation manual, a hearth extension must be used with this fireplace.
Features
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Required: the Blackburn 54" must have a hearth extension.
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Six pieces: two 54" x 20" and four 12" x 20", each 1/2" thick.
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Finished size: 78" wide x 20" deep x 1" thick.
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Insulation: 1" of Micore meets the manual's 1" Micore or equivalent call-out.
Fits These Wood Fireboxes
Specifications
| Model numbers |
WB54HE |
| Part |
Hearth extension kit, Micore board |
| Pieces |
2 at 54" x 20" x 1/2"; 4 at 12" x 20" x 1/2" |
| Finished size |
78" x 20" x 1" |
| Fits |
Blackburn 54" wood burning firebox (WB5412FB0F) |
Installation Notes
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Cover it: the hearth extension material must be covered with tile, stone or other non-combustible material.
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Insulation: the fireplace is approved for a hearth extension insulated to a minimum R-value of 2.06.
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Raised firebox: non-combustible flooring at least 20" in front of the opening and 12" to each side.
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Flush firebox: non-combustible flooring at least 30" in front of the opening and 12" to each side; check the hearth figures in the manual before you order.
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Height: the hearth extension can be no more than 9-3/16" above the floor under the fireplace.
Downloads
Warranty
The Blackburn 54 installation manual gives accessories and parts, including the hearth extension, a limited 1-year parts warranty against defects in workmanship or material, for the original purchaser. Travel, diagnostic, freight, removal and reinstallation costs are not covered. Full terms are in the warranty section of the installation manual.
