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LENNOX HEARTH PRODUCTS • MONTEBELLO
FIREPLACE AND FRAMING SPECIFICATIONS
Model No.
MDLX40IN-PV
MDLX45IN-PV
Table 8: Framing Dimensions
* C = Adaptor Plus 4 ft Vertical Vent (min.) and 90° Elbow
D
5 1/4 in.
(133)
8 3/8 in.
(213)
Model
No.
MDLX40IN-PV
MDLX45IN-PV
Table 9: Fireplace Dimensions
Figure 8: Fireplace and Framing Specifications
10
DLX POWER VENT DV GAS FIREPLACES (MDLX40/45IN-PV) • INSTALLATION INSTRUCTIONS
®
A
B
in.
50 3/4
43
mm
1289
1092
in.
56 7/8
48
mm
1445
1219
E
8 / 11 in.
Vent / Intake
14 1/8 in.
8 1/2 in.
(216)
Top View
J
F
A
Front View
A
B
in.
50 5/8
37 1/4
mm
1286
946
in.
56 11/16
42 1/4
mm
1440
1073
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Adaptor Plus 4 ft
VENT FRAMING
Vertical
TOP VENT WITH 2 FEET
Vent (min.)
VERTICAL VENT AND
ONE 90° ELBOW
and 90° Elbow
C *
139 1/8
3534
144 1/8
3661
B
1/2 A
Inches (mm)
(359)
5 3/32 in. (129)
7 in.
(178)
G
B
H
19 5/8 in.
(498)
C
D
42 7/8
25 5/16
1089
643
864
47 7/8
28 3/8
40 1/8
1216
721
1019
Framing should be constructed
10 1/2 in.
(267)
7 in.
(178)
5 1/8 in.
(130)
C
25 1/4 in.
(641)
A
26 15/32 in.
(672)
25 29/32 in.
(658)
25 1/2 in.
(648)
2 1/2 in. (64)
Gas Inlet
(This
Side
C
Only)
Electrical
Inlet
Right Side View
E
F
G
34
37 5/8
33 3/32
956
840
43 5/8
38 3/32
1108
968
of 2x4 or larger lumber.
12 1/8 in.
(308)
Vent Size
Co-axial DV
4 1/2 in. Inner
Vent Size
7 1/2 in. Outer
Notes
Diagrams, illustrations and photographs
are not to scale – consult installation
instructions. Product designs, materi-
als, dimensions, specifications, colors
and prices are subject to change or
discontinuance without notice.
H
J
29 9/32
34 3/4
744
883
34 1/2
40 59/64
876
1039
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