Sidewalls/Surrounds - Heatilator MHST36D Installation Manual

E. Sidewalls/Surrounds
• Locate adjacent combustible sidewalls a minimum of 12
in. (305 mm) from fireplace opening.
• Mantle leg, surround, stub wall, whether combustible
or non-combustible, may be constructed as shown in
Figure 7.11.
12 in.
[305 mm]
Figure 7.11 Mantel Leg, Surround or Wall Projection (acceptable on both sides of opening)
Grid represents 1 in. (25 mm) squares
FLUSH
FRONT
12 in.
[305 mm]
Heatilator • MHST36D Installation Manual • 4012-086 • Rev D • 03/17
BRICK
FRONT
36 in.
[914 mm]
40 in.
[1016 mm]
12 in.
[305 mm]
4 in.
[102 mm]
9 3/4 in.
[248 mm]
29