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D. Mantel and Wall Projections
The combustible mantel may have a maximum depth of 12
in. (305 mm). Positioned 22 in. (559 mm) above the open-
ing. Combustible trim pieces that project no more than 1-
1/2 in. (38 mm) from the face of the fireplace can be placed
no closer than 6 in. (152 mm) from the top of the opening.
WARNING! Risk of Fire!
• You must seal around the finishing material to fireplace.
Combustible Wall
2 x 4 stud wall
Standoffs
Non-combustible
Decorative Facing
such as:
Steel, iron, brick,
tile, concrete, slate,
glass, plasters.
DO NOT cover any
1 1/2 in./38 mm
air openings in the face
of the fireplace.
Measured from top of fireplace opening
Figure 7.13 Mantel Specifications
34
Combustible
Decorative Facing
Grid represents
1 in. squares
12 in./305 mm
Mantel
22 in./559 mm
minimum
12 in./305 mm
minimum
6 in./152 mm
minimum
maximum
Seal joint with non-combustible
sealant to prevent heat from being
drawn into the wall cavity.
Majestic • Ashland ASH36 Installation Manual • 4059-909 • Rev D • 04/19
E. Sidewalls/Surrounds
• Locate adjacent combustible sidewalls a minimum of 24
in. (610 mm) from fireplace opening.
• Mantle leg, surround, stub wall, whether combustible
or non-combustible, may be constructed as shown in
Figure 7.14.
7 ft (2134 mm)
minimum
base of fireplace
to ceiling
Figure 7.14 Mantel Leg, Surround or Wall Projection (acceptable
on both sides of opening)
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