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Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. F • 04/08 9
D. Mantel Projections
Figure 3.3 Clearances to mantels or other combustibles
above appliance
Figure 3.4 Clearances to Mantel Legs or Wall Projections
(Acceptable on both sides of opening.)
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
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
A
TOP VIEW
B
MANTEL LEG OR
WALL PROJECTIONS
INTERIOR WALL
If A minimum is _____, then B maximum is ______.
A
in.123456789101112
mm 25 51 76 102 127 152 178 203 229 254 279 305
B
in.123456789101112
mm 25 51 76 102 127 152 178 203 229 254 279 305
Figure 3.5
ABC
Cerona-36
in.
49 16-3/4 43-5/8
mm
1245 425 1108
Cerona-42
in.
45-1/4 16-3/4 50-5/8
mm
1149 425 1286
Note: If using the Apollo Mantel System, the appliance must
be raised 1-1/4 in. from fl oor.
A
B
1 in.
(25)
C
CEILING
COMBUSTIBLE
SHEATHING
NON-COMBUSTIBLE
FACING MATERIAL
IN SHADED AREAS
FIREPLACE
ARCH OPENING
CLEARANCE
TO CEILING
MINIMUM
BOTTOM OF FIREPLACE
TO BOTTOM OF
NON-COMBUSTIBLE
FACING MATERIAL