Heatilator EL36 Series Owner's Manual page 28

Raised Hearth Extension Construction
A raised hearth extension that is fl ush with the fi replace
opening (Figure 6) or less than 4 in. (102 mm) below the
fi replace opening (Figures 4 & 5) requires the fi replace to
be installed on a non-combustible surface.
IMPORTANT! Hearth extension design must be determined
before installation of fi replace.
Noncombustible
Finishing Material
Noncombustible
Framing Material
HX3 or HX4
Figure 6 Raised Hearth Extension Detail
Raised Hearth Extension Framing
The hearth framing must be constructed of non-combustible
materials (Figure 8) and placed on an HX3 or HX4, or equiv-
alent material (Figure 7). When creating the platform, allow
for the thickness of the non-combustible fi nishing materials
(Figure 9).
HX3 or HX4
Figure 7 Non-combustible Surface for Hearth Extension
28
Non-combustible
Material
Metal
Floor
Hearth Strips
Heatilator • EL36/EL42 • 4044-132 Rev P • 02/07
Noncombustible
Framing Material
Figure 8 Framing Materials
Noncombustible
Finishing Materials
Figure 9 Finishing Materials
HX3, HX4 or
equivalent