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D. Clearances to Combustibles
Carefully select the best location for installation of your
vent-free firebox. The following factors should be taken
into consideration:
•
Clearance to side walls and ceiling. Minimum clearances
to combustibles must be maintained.
•
Location must not be affected by drafts caused by
kitchen exhaust fans, ceiling fans, return air registers for
forced air furnaces / air conditioners, windows or doors.
Combustible flooring may be installed next to the front of the appliance.
9 in (229 mm) min.
(from firebox opening)
Figure 3.4 Clearances to Combustibles
Vinyl Flooring
Vinyl Flooring is sensitive to heat. A 14 inch minimum depth
hearth extension is recommended when using vinyl flooring
up to the wall. See Figure 3.5.
NOTICE: Clearances that do not meet the minimum guide-
lines could result in damage or buckling to the vinyl flooring
and is done at the installer's risk.
Hearth and Home Technologies does not recommend
adhesive based vinyl flooring due to thermal expansion.
Floating-style flooring can be used, but will reach tempera-
tures up to 110°F in a room with ambient temperature of
70°F. Consult flooring specifications to ensure compatibility.
10
Outdoor Lifestyles • VOFB36/42 Installation Manual • 4153-901 • Rev B • 04/23
0" in to back
(No carpet or vinyl within 14 inches)
Drywall
6 in. (152 mm) min.
•
Installation must provide adequate ventilation and com-
bustion air.
•
Location should be out of high traffic or windy or drafty
areas.
•
DO NOT INSTALL WHERE CURTAINS, FURNITURE,
CLOTHING OR OTHER FLAMMABLE OBJECTS ARE
LESS THAN 36" FROM FRONT OF FIREBOX.
•
Never obstruct the front opening of the vent-free firebox
or restrict the flow of combustion and ventilation air.
0" in to side
42 in to ceiling
Drywall
0 in
(914 mm)
Perpendicular
Wall
Vinyl Flooring
Firebox width min.
Figure 3.5 Vinyl Flooring Exception
(1067 mm)
0 in to standoffs
36 in
Minimum Hearth Requirement -
0 in. Note: For installations with
vinyl flooring, special clearance
recommendations apply. See
section 3D Vinyl Flooring.
0 in to floor
14 in. min.
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