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F. Sidewalls/Surrounds
• Adjacent combustible sidewalls must be located
a minimum of 18 in. (457 mm) from the fireplace
opening.
16 3/4 in.
Minimum
48 in. Min.
36-5/8 in.
50 deg
20 in.
4 in.
39 deg
BRICK
FRONT
14-1/2 in.
18 in. Min.
48 in. Min.
34 in.
39 deg
14-1/2 in.
18 in. Min.
16 3/4 in.
Minimum
50 deg
20 in.
Figure 11.5 Mantel Leg or Wall Projections (acceptable on both sides of opening)
• Combustible or non-combustible mantel legs, surrounds
and stub walls may be constructed per Figure 11.5.
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09