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Heatilator • Novus B-Vent Series • 4055-188 • Rev. S • 3/13
29
These surfaces
may be covered
with non-combustible
material.
Non-combustible
sealant.
B. Facing Material
• Metal front faces may be covered with non-combustible
materials only.
• Facing
and/or
fi nishing materials must not interfere with
air fl ow through louvers, operation of louvers or doors,
or access for service.
• Facing
and/or
fi nishing materials must never overhang
into the glass opening.
• Observe all clearances when applying combustible
materials.
• Seal joints between the fi nished wall and appliance top
and sides using a 300°F minimum sealant. Refer to
Figure 13.3.
WARNING! Risk of Fire! DO NOT apply combustible ma-
terials beyond the minimum clearances. Comply with all
minimum clearances to combustibles as specifi ed in this
manual. Overlapping materials could ignite and will inter-
fere with proper operation of doors and louvers.
Figure 13.3 Noncombustible Facing Diagram