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 ______.
Ain.123456789101112
mm 25 51 76 102 127 152 178 203 229 254 279 305
Bin.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