Finishing - Heat & Glo HST-48D Owner's Manual

11

Finishing

A. Non-Combustible Materials
Test Method for Behavior of Metals, in a Vertical Tube
Furnace at 750° C
B. Combustible Materials
C. Hearth Extension
WARNING! Risk of re!
embers or other burning material falling from the replace
may ignite ooring or concealed combustible surfaces
rotective metal hearth strips
Hearth e tensions
speci ed
Table 11.1
R = 1/k x inches of thickness
Table 11.2
Hearth Extension Insulation Alternatives-Total minimum R Value must equal 1.03
Material
Marble
ASTM E 136, Standard
High temperatures, sparks,
U T be installed
U T be installed e actly as
k per inch
CAT. #
Figure 11.1 Hearth Extension Dimensions
r per inch thickness
thick thick
R value
C
A
A
in
mm
Minimum
required
k value
B
B C
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