![](/images/new-backgrounds/1012943/1294317x1.webp)
D.Mantel Projections
CEILING
A
COMBUSTIBLE
FACING MATERIAL
FIREPLACE HEADER
B |
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C | |
FACING MATERIAL |
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| 1 in. |
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| TYPICAL |
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| 12" |
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| 11" |
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| 10" |
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7" | 8" | 9" |
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| E | |
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6" |
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| MINIMUM | |
5" |
| FROM TOP OF ARCH | ||||
4" |
| OPENING TO CEILING | ||||
3" |
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2"
1"
D
MINIMUM
FROM TOP OF ARCH
OPENING TO FIRST
MANTEL PROJECTION
![](/images/new-backgrounds/1012943/1294317xi2.webp)
TOP OF ARCH OPENING
COMBUSTIBLE
SHEATHING
CLEARANCE |
|
TO CEILING | CEILING |
| |
| B MINIMUM |
A
FACING MATERIAL
IN SHADED AREAS
FIREPLACE
ARCH OPENING
|
| A | B | C | D | E |
in. | 16 | 11 | 49 | |||
mm | 819 | 425 | 406 | 279 | 1245 | |
| in. | 16 | 11 | |||
mm | 724 | 425 | 406 | 279 | 1149 |
Figure 3.3 Clearances to Mantels or other
Combustibles above Appliance
INTERIOR WALL
Top View
A | B |
|
MANTEL LEG OR WALL PROJECTIONS
If A minimum is _____, then B maximum is ______.
A | in. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
mm | 25 | 51 | 76 | 102 | 127 | 152 | 178 | 203 | 229 | 254 | 279 | ∞ | |
B | in. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
mm | 25 | 51 | 76 | 102 | 127 | 152 | 178 | 203 | 229 | 254 | 279 | ∞ |
Figure 3.4 Clearances to Mantel Legs or Wall Projections (Acceptable on both sides of opening.)
1in.
(25)
BOTTOM OF FIREPLACE
TO BOTTOM OF
FACING MATERIAL
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| A | B | |
in. | 49 | |||
mm | 1245 | 425 | ||
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in. | ||||
mm | 1149 | 425 | ||
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Figure 3.5
Heat & Glo • | 9 |