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C. Sidewalls/Surrounds
•
Adjacent combustible sidewalls must be located a minimum of 12 in. (305 mm) from the fireplace opening.
•
Combustible and non-combustible mantel legs, surrounds and stub walls may be constructed within the gridded area,
Figure 6.3.
11.92 in.
[303 mm]
FLUSH
FRONT
Figure 6.3
Mantel Leg or Wall Projections
D. Frame the Fireplace
Figure 6.4 shows typical framing using combustible materials (2x4 lumber shown).
•
Observe all required air space clearances to combustible materials as shown in Figure 6.1 & 6.2.
•
Framing across the top of fireplace must be above top standoffs.
Figure 6.4
Framing the Fireplace
20
36 in.
[914 mm]
(fireplace opening)
40 in.
[1016 mm]
12 in.
[305 mm]
2 in. (51 mm) minimum air space
clearance to enclosure
Mantel
47-1/8 in. (1197 mm)
Header Height
BAY-40
Heat & Glo • BAY-40, PIER-40 • 34977 • Rev AE • 05/07/13
36 in.
[914 mm]
(fireplace opening
40 in.
[1016 mm]
12 in. max.
(305 mm)
4 in.
[102 mm]
9 3/4 in.
[248 mm]
BRICK
FRONT
12 in.
[305 mm]
2 in. (51 mm) minimum air space
clearance to enclosure
Mantel
12 in. max.
(305 mm)
47-1/8 in. (1197 mm)
Header Height
PIER-40
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