Mantel And Wall Projections - Heat & Glo 350TRSI-AUF Owner's Manual

D. Mantel and Wall Projections
WARNING! Risk of Fire! Comply with all minimum clear-
ances as specified. Framing or finishing material closer than
the minimums listed must be constructed entirely of non-
combustible materials (i.e., steel studs, concrete board, etc).
Combustible Mantels
NON-COMBUSTIBLE
BOARD
102
76
51
TOP FRONT EDGE
Note: All measurements in millimeters.
Note: Measurement is taken from top of the opening,
NOT the top of the fireplace.
Figure 5.4 Minimum Vertical and Maximum Horizontal
Dimensions of Combustibles
Combustible Mantel Legs or Wall Projections
*
Add 1/2 in. (13 mm for rear vent)
TOP VIEW
*
2-7/8 in.
(876 mm)
MINIMUM
Figure 5.5 Clearances to Mantel Legs or Wall Projections
(Acceptable on both sides of opening.)
305
279
254
229
203
178
152
279
127
254
229
203
178
152
127
102
76
51
OF FIREPLACE
*
1/2 in.
(13 mm)
MINIMUM
3 ft. (914 mm) MAXIMUM
Heat & Glo • 350TRSI-AUF, 350TRSILP-AUF • 2089-980 Rev. o • 6/12
1/2 in.
(13 mm)
305
Figure 5.6 Non-combustible zone
If joints between the finished walls and the heater surround
(top and sides) are sealed, a 149 ºC (300 ºF) minimum seal-
ant material must be used. These joints are not required to
be sealed. Only non-combustible material (using 149 °C
(300 ºF) minimum adhesive, if needed) can be applied as
facing to the heater surround. See Figure 5.7.
NON-COMBUSTIBLE
Note: Zero clearance finishing allowed on sides of surround
and top of non-combustible board.
Figure 5.7
3-1/2 in.
(89 mm)
NON-COMBUSTIBLE
BOARD SHIPPED
WITH APPLIANCE
NON-COMBUSTIBLE ZONE
FINISH WALL MATERIAL MAY BE
COMBUSTIBLE - TOP AND SIDES
BOARD
HIGH TEMPERATURE (149 ºC (300 ºF MIN.)
TOP AND SIDE SEAL JOINT
1/2 in. (13 mm)
SHEETROCK
23