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Hearth & Home Technologies CERONA-42 User Manual

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Heat & Glo  •  Cerona-36, Cerona-42  •  2106-900 Rev. H  •  11/08
10
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
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
12
mm
25
51
76
102 127 152 178 203 229 254 279 305
Figure 3.5
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  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