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September 7, 2007
433-1390D
Page 39
7100FP EPA Woodburning Fireplace
R
Figure 39.1 Positioning the Protective Metal Hearth Strips
Fire Risk
• Metal hearth strips MUST be installed.
Sparks or embers may ignite fl ooring.
WARNING
Fire Risk
• Hearth extensions must be installed
exactly as specifi ed.
High temperatures or hot embers may ignite
concealed combustibles.
WARNING
1in. (25mm) OVERLAP
Metal strips 2 in. (51mm) under edge of
Fireplace and Hearth Extension and 2 in.
(51mm) on both side of fireplace opening.
Nail or screw metal strips in place.
NONCOMBUSTIBLE
DECORATIVE MATERIAL
(2) HX4 MICORE FACTORY
BUILT HEARTH EXTENSION
(Each HX4 = 1/2 in. (13mm) thick)
HEARTH METAL STRIPS
GAP (SEAL WITH NONCOMBUSTIBLE SEALANT)
UP TO BOTTOM OF FASCIA
6 in. (152mm)
1 in. (51mm)
1. Fireplace and Hearth Extension are fl ush on the
fl oor:
Non-combustible fl ooring 20 in. (508mm) in front of and 8 in.
(203mm) to either side of the fuel opening with a minimum
thickness of 1 in. (25mm) and (“k” value = 0.49). See Figure
39.2 and 39.3 and Figures 40.1 and 40.2 on page 40.
2. Fireplace is installed fl ush on the fl oor and Hearth
Extension is raised to the bottom of the fascia:
Raised hearth must be constructed of non-combustible materi-
als such as cement block or equivalent material. Non-com-
bustible fl ooring on the raised hearth must be 20 in.
(508 mm)
in front of and 8 in. (203 mm) to either side of the fuel
opening
with a minimum thickness of 1 in. (25 mm) and (“k” value =
0.49). See Figure 40.3 on page 40.
Figure 39.3 Side View of Factory Built Hearth Extension
Figure 39.2 Hearth Extension Dimensions
B
8 in. (203mm)
from each side of
fuel loading door
A
Model # 7100FP A B
in.
41 20
mm
1041 508
The construction of, and materials used for a hearth exten-
sion are shown in Figures 39.2 and 39.3.
A hearth extension
of this construction may be covered with any non-combustible
decorative material and may have a maximum thickness as per
Figure 38.1 on page 38. Seal gaps between the hearth exten-
sion and the front of the fi replace with a bead of non-combus-
tible sealant.