Heat & Glo NorthStar-BK Installation Manual page 35

C. Mantel and Wall Projections
A o usti le antel a
in 1524 o t e ase o t e
Re e to Se tion 3 o e u e
T e o usti le antel
12 in 305 o usti le t i
o e t an 3/4 in 1
an e la e no lose t an 6 in 152
o si e o t e e o ative ont
ove
• t e etal su a es o t e
• e e t e non- o usti le oa
etal su a es
• t e s a e et een t e
a in e e s
M a nt e l
T r im
60 in.
( 1 5 24 m m )
48 in.
( 1 21 9 m m )
Figure 7.2 Mantel Specifications
Heat & Glo • NORTHSTAR • 480-2360 Installation Manual • Rev D • 05/30/13
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e ositione no lo e t an 60
e la e
antel ei t allo an es
a ave a a i u e t o
ie es t at o e t no
o t e a e o t e e la e
o t e to
o usti le t i ust not
e la e
is la e ove t e
etal a e o t e e la e an
C l e a r a nc e s a r e
f r o m b o t t o m o f
a p p l ia nc e t o l o w e r
e d g e o f m a nt e l o r
t r im
D. Finishing the Hearth Extension
WARNING! Risk of Fire!
bers or other burning material falling from the fireplace
may ignite flooring or concealed combustible surfaces.
• Protective metal hearth strips MUST be installed.
• Hearth extensions MUST be installed exactly as
specified.
A ea t e tension ust e installe
ote t t e o usti le oo in ont o t e
ot a iant eat an s a s
• ou M ST use a ea t e tension it t is
• Re e to i u e 4 o
• T is e la e as een teste an a
a ea t e tension insulate to a
2 06
• T e ea t e tension
tile stone o ot e non- o
• Manu a tu e ea t
u lis e
R value
on u tivit o eat Re e to t e o
to onve t a value to an R value
• Re e to Ta le
alte natives
Table 7.1
R = 1/k x inches of thickness
Table 7.2
Hearth Extension Insulation Alternatives, R Value = 2.06
Material
Hea t & Ho e H 3 H 4
SG Mi o e 300
SG Du o e ent oa
e ent Mo to
o on i
e a i Tile
A st on iva Gua lus
Ma le
High temperatures, sparks, em-
it all e la es to
e la e o
ini u i ensions
ove o use it
ini u
ate ial M ST e ove e
usti le ate ial
ate ials ill usuall
esistan e to eat o k value
ula in Ta le
2 o ea t e tension insulation
Minimum
k per inch r per inch thickness
thick thick required
0 4 2 06
0 4 2 06
1 2 0 52
5 0 0 20 10 1/2 in
5 0 0 20 10 1/2 in
12 50 0 08 25 3/4in
0 46 2 18
14.3-20.0 0.07-0.05 29 1/2 - 41 1/4 in.
e la e
R value o
it
ave a
1
1 in
1 in
4 in
1 in
35