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Minimum Wall and Ceiling Clearances (Figure 2)
Sidewall and Back Clearances: The clearance from the
inside of the fireplace to any combustible wall should not be
less than 2".
Ceiling Clearances: The ceiling height should not be less
than 36" from the top of the hood.
Mantel Clearances: Ventless fireplace models must use the
hood supplied with the fireplace. If a combustible mantel is
installed, it must meet the clearance requirements detailed
above.
COMBUSTIBLES
ALLOWED
MANTEL
HOOD
2”
18 3/4”
4”
21 1/2”
16”
6”
24 1/4”
8”
27”
27 3/4”
10”
12”
Figure 2
Mantel Clearances
CLEARANCES