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NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
42-1/2”
(1080 mm)
17-1/8”
(435 mm)
28-5/16”
(719 mm)
42”
(1067 mm)
43”
(1092 mm)
43”
(1092 mm)
27-1/2”
(699 mm)
10-5/8”
(270 mm)
36”
(914 mm)
33”
(838mm)
21-1/4
(540 mm)
Knock-Out
for Ducting
Knock-Out
for Ducting
Outside Air
Intake
FRAMING DIMENSIONS
Fireplace Opening Width
A 42-1/2" 1080 mm
B 43-1/4" 1099 mm
C 33" 838 mm
D 16-1/2" 419 mm
E 85" 2159 mm
F 42-1/2" 1080 mm
G 27" 686 mm
H 26" 660 mm
J 60-1/8" 1527 mm
K 8" 203 mm
L 1" 25 mm
F
J
21-1/2”
(546mm)
E
D
OUTSIDE CHASE
G
H
C
L
*
Back Wall of Chase/Enclosure
Including Finising Materials if any
Rough Framing Face (Unfinished Shown)
* Zero Clearance From Back Spacer to Wall
Corner Installation
Figure 10 - Framing Dimensions
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, calculations
will need to be made.
* The fireplace must not be in contact with
any insulation or loose filling material.
Cover the insulation with Drywall panels
around the fireplace.
Combustible materials can NOT be
used in the space directly above the
fireplace. Do not fill the space above
the fireplace with any material (Except
the wood framing)
7' MIN.
2" X 3"
MIN.
A
G
B
Rough Framing Face
(unfinished shown)
(593mm)
23-11/32”
K
Combustion
Air Kit
Combustible materials can NOT be
used in the space directly above the
fireplace. Do not fill the space above
the fireplace with any material (Except
the wood framing)