Owner's Manual

4
Firebox and Framing Dimensions
B
A
Rough
Opening
Height
C
23"
Rough
Opening
Depth
D - Rough Opening Width
1/2" - 5/8"
23-1/4"
F
E
E
G
I
6-1/8"
37-1/2"
24"
25-1/4"
J
8-3/4"
7"
37-1/4"
3"
3"
3-3/4"
13-3/4"
7-1/8"
Ref. BUF36, BUF36-R BUF42, BUF42-R
A 42" 48"
B 36" 42"
C 28-1/4" 30-3/4"
D - Chase Installation 42-1/2" 48-1/2"
D - Recessed Installation 42-3/4" 48-3/4"
E 52" 56-5/8"
F 71-1/2" 74-1/2"
G 36-3/4" 38-7/8"
Figure 4.1 Firebox and Framing Dimensions
9
Monessen • BUF36/42 Installation and Operating Manual • 4600-900 • Rev C • 05/17