Heat & Glo RED60 Owner's Manual page 71

WARNING! Risk of Fire! DO NOT apply combustible
materials beyond the minimum clearances. Comply with
all minimum clearances to combustibles as specifi ed in
this manual. Overlapping materials could ignite and will
interfere with proper operation of doors and louvers.
WARNING! Risk of Fire! DO NOT install drywall or other
combustible materials over the factory-installed non-com-
bustible board. Overlapping materials could ignite.
Decorative facing material thickness is measured from
the face of the factory-installed non-combustible board.
See Figure 13.7.
The mesh front can be installed such that it overlaps non-
combustible materials up to 1-1/4 in. thick. See Figure 13.8.
Refer to Section 1.E and 1.F of this manual for defi nition
and qualifi cations and defi nition of non-combustible and
combustible materials.
Specifi c requirements for each method if installation are
described below and on the following pages of this section.
Non-Combustible Finish Materials
0 to 1-1/4 inch thickness-Overlap Fit Method
The mesh front is designed to overlap fi nish materials 0
inches to 1-1/4 inch thick. See Figure 13.9.
NOTICE: This 1-1/4 inch maximum not only includes the
decorative fi nish materials (marble, tile, slate, etc) but also
the thin set, lath and adhesive used to attach the decorative
fi nish material.
The non-combustible fi nish material can be installed up
to the 17-1/8 inch (height) by 62-3/4 inch (width) fi replace
opening.
SIDE FINISH NON-COMBUSTIBLE BOARD (2)
68 IN. WIDTH
FACTORY INSTALLED NON-COMBUSTIBLE BOARD
= 2 IN. MAX. SCREW LENGTH
= NO SCREWS IN THIS AREA
Figure 13.8 Non-Combustible Finish Material Diagram for
0 - 1-1/4 Inch Thick Overlap Fit Method
Figure 13.9 Overlap Fit Method
30-7/8 IN. HEIGHT
FACTORY INSTALLED
NON-COMBUSTIBLE
BOARD
Heat & Glo • RED60 • 2159-900 Rev. B • 12/09
7 IN.
0-1-1/4 IN.
1 IN.
13-3/4 IN.
NON-COMBUSTIBLE BOARD
FACTORY-INSTALLED
NON-COMBUSTIBLE
BOARD
STANDARD
DECORATIVE FRONT
SHOWN
0-1-1/4 IN. THICK DRYWALL
OR EQUIVALENT
= AIR SPACE
71