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18
6
Framing & Clearances
A
F
D
B
C
5/8 in. (16 mm) all
configurations
1-1/2 in. min. air space
from fireplace to
combustible materials.
1/2 in. min. air space at
nailing flanges.
Note:
In an exterior chase
or projecting into a
garage
Across a
corner
As a
room
divider
Along a wall
84 in.
(2134 mm)
G
B
E
Note:
In addition to these
framing dimensions, also
reference the following
sections:
• Clearances (6.B.)
• Framing (6.D.)
• Mantel Projections
(6.C)
• Fireplace Dimensions
(14.A.)
48 in.
(1219 mm)
MINIMUM
24 in. (610 mm)
from fireplace opening to
any perpendicular wall
A
B
G
G
B
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Model # A B C D E F G
in.
77 7/8 53 7/8 95 1/4 47 5/8 22 1/2 67 3/8 28 3/8
mm
1978 1368 2419 1210 572 1711 721
BIR42
Figure 6.1 Fireplace Locations
A. Select Fireplace Location
NOTICE: Both outside air kits MUST be
installed.
Heatilator•BirminghamBIR42•4059-308RevJ•1/11