Heatilator Birmingham BIR36-B Installation Manual page 34

Non-Combustible Wall Combustible
Decorative Facing
Metal stud wall
above the fireplace up
12 in. Max.
to ceiling (7 ft. min.)
Non-combustible
Metal support to stablize wall and mantel
Standoffs
12 in./305 mm
Non-combustible Non-combustible
mantel or mantel or
non-combustible non-combustible
finishing material finishing material
may be positioned may be positioned
anywhere within anywhere within
the shaded area. the shaded area.
Non-Combustible
Decorative Facing
such as:
Steel, iron, brick,
tile, concrete, slate,
glass, plasters.
Measured from top of fireplace opening
Seal joint with non-combustible
sealant to prevent heat from being
drawn into the wall cavity.
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7 ft (2134 mm)
minimum
base of fireplace
to ceiling
(305 mm)
Deep
Mantel
Non-Combustible
Decorative Facing
to top of standoffs
22 in./559 mm
Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/23
E. Sidewalls/Surrounds
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Figure 7.14 Mantel Leg, Surround or Wall Projection (acceptable
on both sides of opening)