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14 81D0107
Heater in
Fireplace or
Firebox
Heat
Resistant
Material
Hood
10"
12"
8"
6"
2
1
/
2
"
8" 14
1
/
2
"18
5
/
8
"22
1
/
2
" 26"
CLEARANCES AND HEIGHT REQUIREMENTS
Figure 8 - Minimum Mantel Clearance with Hood - All Models
Example: A mantel may project from the wall a maximum of 2
1
/2" at a
minimum of 8" above the opening, and a maximum of 6" at a mini-
mum of 14
1
/2" above the opening.
Heater in
Fireplace or
Firebox
Heat
Resistant
Material
10"
8"
6"
2
1
/
2
"
8" 14" 20
1
/
2
"24
5
/
8
" 28"
Example: A mantel may project from the wall a maximum of 2
1
/2" at a mini-
mum of 14" above the opening, and a maximum of 6" at a minimum
of 20
1
/2" above the opening.
Figure 7 - Minimum Mantel Clearance with No Hood -NB18