Non-Combustible Sealant Material; Mantel And Wall Projections - Heatilator SC60 Installation Manual

Non-combustible flooring a minimum of 16 in. (406 mm)
in front of and 8 in. (204 mm) to each side of the fuel
opening is required.
The hearth framing must be constructed of non-com-
bustible materials (such as metal framing or equivalent
material) and placed on HX3(s), HX4(s), or equivalent
material. See Figure 7.2.
When creating the platform, allow for the thickness
of the non-combustible finishing materials.
C. Non-Combustible Sealant Material
After completing the framing and applying the facing
materials over the framing, a bead of noncombustible
sealant must be used to close off any gaps at the top
and sides between the fireplace and hearth.
WARNING! Risk of Fire!
Hearth & Home Technologies is not responsible for
discoloration, cracking or other material failures of
finishing materials due to heat exposure or smoke.
• Choose finishing materials carefully.
Figure 7.4 Mantel Specifications
30
Combustible Wall
Noncombustible Wall
2 x 4 stud wall
Standoff
Non-combustible
Decorative Facing
such as:
Steel, iron, brick,
tile, concrete, slate,
glass, plasters.
Seal joint with
non-combustible
sealant
1 1/2 in./38 mm
maximum
Heatilator • SC60 Installation Manual • 4013-281 • Rev F • 05/06/15
D. Mantel and Wall Projections
A combustible mantel may be positioned no lower than
42 7/8 in. (1524 mm) from the base of the fireplace.
The combustible mantel may have a maximum depth of
12 in. (305 mm). 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
or side of the decorative front. Combustible trim must not
cover:
• the metal surfaces of the fireplace
• where the non-combustible board is placed over the
metal surfaces
• the space between the metal face of the fireplace and
framing members
Combustible
Decorative Facing
12 in./305 mm
Mantel
16 in./406 mm
minimum
12 in./305 mm
minimum
7 1/8 in./181 mm
minimum
Measured from top of fireplace opening
Grid represents
1 in. squares
7 ft (2134 mm)
minimum
base of fireplace
to ceiling