Mantel Shelf |
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See mantel drawing for |
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Noncombustible Finish Mate- | Standoff |
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Brick Ledge
Cast Front
Top View
| Fireplace |
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| 1” (25mm) |
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FP1200 |
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Fig. 20 Finishing materials placement.
Mantels
The height that a combustible mantel is fitted above the fireplace is dependent on the depth of the mantel. This also applies to the distance between the mantel leg (if fitted) and the fireplace.
For the correct mounting heights and widths, refer to Figures 21 and 22. When using paint or lacquer to finish the mantel, such paint or lacquer must be heat resistant to prevent discoloration.
Combustiible | 12" |
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Mantel and |
| (305mm) |
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Trim |
| Finished Wall |
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| 1���" | Header |
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| (38mm) | Standoff |
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| 12" |
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| (305mm) | Noncombustible | ||
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| Min. | Material |
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| 6" |
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| (159mm) | Brick Ledge |
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| GrilleOpening |
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| Fireplace |
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| Front | FP1398 |
Fig. 21 Combustible mantel minimum opening.
Vermont Castings EWF36A
1���" | * |
Ref. |
** 
Combustible materials are permitted within a shaded area shown in Figure 25 titled Minimum Wall Clearances
* 12” (305mm) from top of grille opening. ** 6” from top of grille opening.
MA81
Fig. 22 Combustible mantel clearances.
Side Wall Protection
Adjacent combustible side walls that are within mini- mum dimensions shown in Figure 24 of the fireplace opening must be protected with CFM Corporation Wall Shield Model SP40 or a specifically built wall shield described in Figure 19.
The special wall shield design described in Figure 19 is an alternate method of adding protection to side walls and can be used in place of the SP40 with the same wall clearances specified for the SP40. Rt must =1.85 minimum.
Examples of wall shield insulation:
1. Manville - CERAFORM 126, K=.27, 1/2 inches thick
2. EH2416, K = .458,
1 inch thick required.
Hearth Installation
A hearth extension is required to protect a combustible floor in front of the fireplace. Refer to Figure 25 for mini- mum dimensions and mounting detail.
NOTE: Hearth Extension must not cover the air inlet opening of a fireplace.
The hearth extension described in Figure 25 must be a durable noncombustible material with a minimum (total) Rt value of 1.09; see Figure 23 for examples. The over- all height (above a combustible floor), depth and width must be as indicated, with the extension centered to the fireplace opening.
20005167 | 15 |