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Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. A • 6/06
9
D. Mantel Projections
Figure 3.4 Clearances to Mantel Legs or Wall Projections
(Acceptable on both sides of opening.)
A
Top View
INTERIOR WALL
B
MANTEL LEG OR WALL PR
O
JECTI
O
NS
Figure 3.5
Figure 3.3 Clearances to Mantels or other
Combustibles above Appliance
NON-COMBUSTIBLE
FACING MATERIAL
COMBUSTIBLE
FACING MATERIAL
1 in.
TYPICAL
D
MINIMUM
FROM TOP OF ARCH
OPENING TO FIRST
MANTEL PROJECTION
E
MINIMUM
FROM TOP OF ARCH
OPENING TO CEILING
FIREPLACE HEADER
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
12"
TOP OF ARCH OPENING
CEILING
A
B
C
CLEARANCE
TO CEILING
MINIMUM
BOTTOM OF FIREPLACE
TO BOTTOM OF
NON-COMBUSTIBLE
FACING MATERIAL
CEILING
COMBUSTIBLE
SHEATHING
NON-COMBUSTIBLE
FACING MATERIAL
IN SHADED AREAS
FIREPLACE
ARCH OPENING
A
B
1 in.
(25)
ABCDE
Cerona-36
in.
32-1/4 16-3/4 16 11 49
mm
819 425 406 279 1245
Cerona-42
in.
28-1/2 16-3/4 16 11 45-1/4
mm
724 425 406 279 1149
AB
Cerona-36
in.
49 16-3/4
mm
1245 425
Cerona-42
in.
45-1/4 16-3/4
mm
1149 425
If A minimum is _____, then B maximum is ______.
A
in.
123 4 5 6 7 8 9 10 1112
mm
25 51 76 102 127 152 178 203 229 254 279
B
in.
123 4 5 6 7 8 9 10 1112
mm
25 51 76 102 127 152 178 203 229 254 279
∞
∞