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29Heatilator • NDI30, NDI30-SP, NDI35, NDI35-SP, NDI30-SPFK, NDI35-SPFK • 2226-900 Rev. G • 4/11
11
Finishing
A. Mantel and Wall Projections
WARNING! Risk of Fire! Comply with all minimum clear-
ances to combustibles as specifi ed. Framing or fi nishing
material closer than the minimums listed must be construct-
ed entirely of noncombustible materials (i.e., steel studs,
concrete board, etc).
Clearance to combustible material under the insert is 1/4
inch (6 mm). Clearance from top of fi replace opening for
combustibles extending 12 inches max. is 12 inches.
• Use leveling legs to raise insert minimum 1/4 inch (6 mm)
above combustible material or outer wrap of factory built
fi rebox.
Combustible facings must not extend behind the insert
surround. For non-combustible material specifi cations
refer to Section 1.E.
Figure 11.1 Clearances to Mantels or other Combustibles
above Appliance
12 IN. MIN.
12 IN. MAX.
EXISTING NON-COMBUSTIBLE FACING