Hearth and Home Technologies NorthStar-BK Indoor Fireplace User Manual


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September 1, 2008
September 1, 2008
Heat & Glo • NorthStar EPA Fireplace • 480-1081C
Page 39
Figure 39.1 Positioning the Protective Metal Hearth Strips
Fire Risk
• MetalhearthstripsMUST be installed.
Sparksorembersmayigniteooring.
WARNING
Fire Risk
• Hearth extensions must be installed
exactlyasspeci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
G
AP
(S
EAL WITH N
O
N
CO
MBU
S
TIBLE
S
EALANT
)
UPTO BOTTOMOFFASCIA
6 in. (152mm)
1/2in.(13mm)
1. Fireplace and Hearth Extension are ush on the
oor:
Non-combustible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 ush on the oor 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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 # NorthStar 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replacewithabeadofnon-combus-
tible sealant.
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