Finishing; Finishing Material - Heatilator ST42A Installation Manual

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Finishing

A. Finishing Material
Refer to Sections 1.B. and Sections 1.C. for combustible/
non-combustible materials. Refer to Figure 7.1 for non-
combustible zone.
WARNING! Risk of Fire!
ances.
• Do NOT cover metal fireplace front with combustible
materials.
• Install combustible materials only to specified
clearances on top front and side edges.
• Complete framing and apply facing material (drywall)
over framing.
• A bead of 300-deg F minimum non-combustible sealant
must be used to close off any gaps at the top and sides
between the fireplace and facing to prevent cold air leaks.
• Large gaps can be bridged with fiberglass rope gasket.
• Only non-combustible materials may be used to cover
the metal fireplace front.
Figure 7.2 Decorative Facing
You must maintain clear-
Finished combustible wall
Combustible material
Non-combustible
decorative facing
(up to full brick depth)
Continuous,
non-combustible sealant
Tile, stone or other
non-combustible material
1/2 in. Micore
or equivilent
Metal strips are placed 2 in. (51 mm)
insulation
under the front of the fireplace and must
extend beyond the front and sides of
fireplace opening by 2 in. (51 mm)
Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13
These surfaces may be
covered with non-
combustible material.
Figure 7.1 Non-combustible Facing
Flat 2 x 4 stud wall
2 x 4 header, flush with
front of stand-offs
Hearth
Refractory
Floor constructed of wood or
other combustible material
High temperature
sealant.
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