Heat & Glo BE-41 Installer's Manual page 27

12"
11"
10"
9"
8"
7"
6"
5"
4"
9"
3"
8"
7"
2"
6"
5"
4"
3"
2"
TOP FRONT EDGE
OF FIREPLACE
CEILING
31"
12"
11"
10"
FINISH WALL MATERIAL MAY BE DRYWALL
- TOP AND SIDES
0
HIGH TEMPERATURE (300 F/149 C MIN.)
O
TOP & SIDE SEAL JOINT
0
0
O