FIREPLaCE sPECIFICaTIONs
Product Reference Information
Cat.
Model
Ship.
No.
Wt.
Volume
h4630
BC36Mh
175 lb.
20.7 cu. ft.
h4631
BCd36Mh
180 lb.
20.7 cu. ft.
Framing dimensions
a
42-1/4"
1073 mm
B
37-1/2"
953 mm
1
B
54-1/2"
1384 mm
2
C
28-3/4"
730 mm
d
15-3/8"
391 mm
E
70"
1778 mm
F
35"
889 mm
g
20-5/8"
524 mm
h
19-5/8"
498 mm
J
49-1/2"
1257 mm
K
8"
203 mm
Notes
due to Lennox' ongoing commitment to quality,
all specifications, ratings and dimensions are
subject to change without notice.
all framing dimensions calculated for 1/2" dry wall
at the fireplace face. If sheathing the chase or
finishing with other thickness materials, calcula-
tions will need to be made.
see Page 6 for Ceiling and Roof Framing
dimensions
diagrams & Illustrations Not to scale
OTL Report No.
116-F-35-2
(940 mm)
Gas Line
Access
20-1/4"
(514 mm)
Left Side
Figure 12
Back Wall of Chase/Enclosure
Including Finising Materials if any
Ship.
**Note: When Framing With 6" Studs Header Must Be 17"
(432mm) Higher. Use Security Chimney's OR15 Offset/Re-
turn Elbow To Recess The Chimney Back 2 1/2" (64mm).
Flat Frame Down To A False Header At (B
Required Clearance To Chimney At All Times.
Back wall of Chase/Enclosure
Back Wall of Chase/Enclosure
Including Finising Materials if any
*
H
Rough Framing Face (Unfinished Shown)
7-13/16"
(198 mm)
Appliance
Top Spacer
1-1/2"
(38 mm)
1-1/2"
(38 mm)
37"
20-3/16"
(513 mm)
27-7/8"
(708 mm)
3-5/16"
(84 mm)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
FOAK-6 Outside
Air Kit
G
K
A
Rough
Framing Face
Inside Chase
(Unfinished Shown)
). Maintain
1
OUTSIDE CHASE
C
G
A
27-1/4"
(692 mm)
(514 mm)
12-1/2"
(318 mm)
40"
(1016 mm)
43"
(1092 mm)
Top View
36"
(914 mm)
2"
(51 mm)
40"
(1016 mm)
43"
(1092 mm)
Front
B
B
1
2
A
Fireplace Framing
Back Wall of
Chase/Enclosure
Including Finising
Materials
if any
D
J
A
E
Rough
Framing Face
(Unfinished Shown)
Corner Installation
20-1/4"
*
Note: 1" Air Space to insulation and building
materials on back and sides.
Appliance Top Spacer
9-5/8"
(244 mm)
Combustion
Air Inlet
37"
(940 mm)
9-3/16"
17-3/8"
(233 mm)
(441 mm)
12-7/8"
7-3/16"
(327 mm)
(183 mm)
Junction
Box
Right Side
(See Note **)
Header
F
9-7/8"
(251 mm)
32"
(813 mm)
Gas Line
Access
9-1/16"
(230 mm)
7