Mantel And Wall Projections - Heatilator ST36D Installation Manual

D. Mantel and Wall Projections
A combustible mantel may be positioned no lower than
40 3/8 in. (1026 mm) from the base of the fireplace.
The combustible mantel may have a maximum depth of
12 in. (305 mm) positioned 12 in. (305mm) above the fire-
place opening. 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. 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
WARNING! Risk of Fire!
• You must seal around the finishing material to fireplace.
Combustible Wall
2 x 4 stud wall
Standoffs
Non-combustible
1 1/ 2 in./38 mm
Decorative Facing
such as: Steel, iron,
brick, tile, concrete,
slate, glass, plasters.
DO NOT cover any
air openings in the
face of the fireplace.
Seal joint with
non-combustible
sealant to prevent heat
from being drawn into
the wall cavity.
Figure 7.10 Mantel Specifications
32
Combustible
Decorative Facing
maximum
6 in./152 mm
minimum
Measured from top of fireplace opening
Heatilator • ST36D Installation Manual • 4012-061 • Rev M • 08/20
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.
Grid lines at 1 in. scale
12 in./305 mm
Mantel
12 in./305 mm
minimum
7 ft (2134 mm)
minimum
base of fireplace
to ceiling