Heat & Glo NorthStar-BK Owner's Manual page 39

WARNING
Fire Risk
• Metal hearth strips MUST be installed.
Sparks or embers may ignite flooring.
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.
Figure 39.1 Positioning the Protective Metal Hearth Strips
The construction of, and materials used for a hearth exten-
sion are shown in Figures 9.2 and 9.. A hearth extension
of this construction may be covered with any non-combustible
decorative material and may have a maximum thickness as per
Figure 8.1 on page 8. Seal gaps between the hearth exten-
sion and the front of the fireplace with a bead of non-combus-
tible sealant.
1. Fireplace and Hearth Extension are flush on the
floor:
Non-combustible flooring 20 in. (508mm) in front of and 8 in.
(20mm) to either side of the fuel opening with a minimum
thickness of 1 in. (25mm) and ("k" value = 0.49). See Figure
9.2 and 9. and Figures 40.1 and 40.2 on page 40.
NONCOMBUSTIBLE
DECORATIVE MATERIAL
Figure 39.3 Side View of Factory Built Hearth Extension
September 1, 2008 September 1, 2008
1in. (25mm) OVERLAP
1/2 in. (13mm)
(2) HX4 MICORE FACTORY
BUILT HEARTH EXTENSION
(Each HX4 = 1/2 in. (13mm) thick)
Heat & Glo • NorthStar EPA Fireplace • 480-1081C
Fire Risk
• Hearth extensions must be installed
exactly as specified.
High temperatures or hot embers may ignite
concealed combustibles.
B
Model # NorthStar
Figure 39.2 Hearth Extension Dimensions
2. Fireplace is installed flush on the floor and Hearth
Extension is raised to the bottom of the fascia:
Raised hearth must be constructed of non-combustible
materials such as cement block or equivalent material. Non-
combustible flooring on the raised hearth must be 20 in. (508
mm) in front of and 8 in. (20 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.
GAP (SEAL WITH NONCOMBUSTIBLE SEALANT)
UP TO BOTTOM OF FASCIA
HEARTH METAL STRIPS
WARNING
8 in. (203mm)
from each side of
fuel loading door
A
A
in. 41 20
1041 508
mm
6 in. (152mm)
B
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