LCUF Vent Free Firebox
6
26D4721
FireBox, HeArTH and FrAMiNG diMeNSioNS
MiNiMUM HeArTH diMeNSioNS
Figure 2 -
Minimum Hearth Dimensions
Figure 1 -
Firebox and Framing Dimensions
D
F
E
H
I
J
K
A
G
C
L
2
6M
”
M
2
56O
”
2
56O
”
264751
LCUF firebox dims
Min. Rough
Opening
Depth
B
Min. Rough
Opening
Height
O - Min. Rough Opening Width
N
P
Q
R
R
S
1/2”
or 5/8”
ref.
LCUF32-r
LCUF36C-r
A
37"
41"
B
32"
36"
C
16"
18"
D
28
M\,
"
32"
E
18
B\,
"
20
Z\x
"
F
23
Z\v
"
27
Z\v
"
G
28
Z\x
"
30
Z\v
"
H
29
M\,
"
33
M\,
"
I
5
C\,
"
5
C\,
"
J
28
C\,
"
31
Z\v
"
K
1"
1"
L
34
C\,
"
37
C\,
"
M
7
C\zn
"
9
C\v
"
Framing dimensions
N
34
Z\x
"
37
C\v
"
O
37"
41
Z\v
"
P
16"
18"
Q
61
C\v
"
68
M\,
"
R
43
C\v
"
48
C\v
"
S
30
M\,
"
34
Z\x
"
A
B
C
D
E
FP2686
hearth dims
ref.
LCUF32-r
LCUF36C-r
A.
22
C\,
"
25
M\,
"
B.
12
C\v
"
15"
C.
28
B\,
"
32
Z\x
"
D.
28"
30
Z\v
"
E.
23
Z\v
"
25
B\,
"
