Heat & Glo • GEM-42B • 2096-900 Rev. H • 3/06
9
D. Mantel Projections
Figure 3.3 Clearances to Mantels or other
Combustibles above Appliance
Figure 3.4 Clearances to Mantel Legs or Wall Projections
(Acceptable on both sides of opening.)
COMBUSTIBLE
FACING MATERIAL
CEILING
FIREPLACE
HEADER
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
12"
1 in. Typical
36-5/8 in. Min.
From top of arch
opening to ceiling
17 in. Min.
From top of arch
opening to first
mantel projection
NON-COMBUSTIBLE
FACING
MATERIAL
TOP OF ARCH OPENING
½ in.
5
3
2
1
MANTEL
LEG
Top View
4
1
2
3
4
5
Note:
Dimension are
shown in inches.
Fire Risk.
Hearth extension required to protect
combustible floors in front of appliance.
WARNING
•
An 8 inch minimum hearth extension must be
constructed of non-combustible material.
E. Hearth Extension
A
B
Figure 3.6 Hearth Extension Dimensions
A
B
in.
47-1/2
8
mm
1207
203
Î
Î
Figure 3.5
COMBUSTIBLE
FACING MATERIAL
NON-COMBUSTIBLE
FACING MATERIAL
IN SHADED AREAS
FIREPLACE
ARCH
OPENING
36-5/8 in.
Min.
Clearance
to Ceiling
Bottom of Fireplace to
Bottom of Non-combustible Facing Material
1 in.
18-1/8 in.
Minimum
CEILING