Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. Q • 8/14
20
D. Mantel and Wall Projections
WARNING! Risk of Fire!
Comply with all minimum clear-
ances as specified. Framing or finishing material closer than
the minimums listed must be constructed entirely of non-
combustible materials (i.e., steel studs, concrete board, etc).
Figure 5.3 Clearances to mantels or other combustibles
above appliance
Figure 5.4 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
MAXIMUM
A
B
C
D
E
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.
1
2
3
4
5
6
7
8
9
10 11 12
mm
25 51 76 102 127 152 178 203 229 254 279 305
B
in.
1
2
3
4
5
6
7
8
9
10 11
∞
mm
25 51 76 102 127 152 178 203 229 254 279
∞
A
B
C
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 floor.
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
Figure 5.5