SPECIFICATIONS
Natural Gas BTU Input
30,000
Propane Gas BTU Input
28,000
Co-axial DV Vent Size
4-1/2" Inner
7-1/2" Outer
EFFICIENCIES
61 % Natural Gas
62 % Propane Gas
• AFUE
65 % Natural Gas
67 % Propane Gas
NOTES
• Annual Fuel Utilization Efficiency
Due to Lennox' ongoing commitment to quality,
all specifications, ratings and dimensions are
subject to change without notice.
Appliance has a factory-installed vent seal cap in
each flue outlet. (see
Installation Manua
l)
22
(559)
35-1/8
(892)
32-5/8
(827)
19
(483)
29 1/2
(749)
39-3/4 (984)
3 (76)
38-3/8 (899)
11 (279)
6-1/4
(159)
25-1/2
(646)
3-1/8 (79)
Louvered Control
Compartment Door
Gas
Inlet
Provide additional
space for
Side
Vent Seal Cap
if
installing against a
solid wall.
Front View
Left Side View
Right Side View
Control Switch Wires
Knock-Out
Junction Box
Knock-Out
10-7/8 (264)
11 (279)
(16)
5/8
Framing Spacers
(top and both sides)
Stepped to Accept Drywall
Vent Seal Cap
Top View
***This dimension does
not include the addition
of drywall to the inside
of framing or clearance
for the
Side Vent Seal Cap
.
Adjust accordingly for your
installation.
See also,
Side Vent Seal Cap
note below.
5-5/8
(143)
***38-3/4
(984)
35-1/4
(895)
**20-3/4
(527)
10-1/2
(267)
12-1/8
(308)
5-1/8
(130)
12-1/8
(308)
25-1/2
(648)
5-1/8
(130)
Vent Center - Top Vent
with one 90 degree
elbow
Vent Center - Side Vent
with no elbows
**This dimension
based on 5/8" drywall.
For 1/2" drywall use
21" (533 mm). The
finished dimension
should be 22" (558
mm)
• Inches (millimeters)
• Minimum Framing Stud Size is 2 x 4
• See side views of fireplace below for
gas line inlet location options.
Fireplace Framing Specifications
Center of gas line
is 3-1/8 inches
(79 mm) up from
floor.
Notes:
Framing Dimensions for Roof
Inches (millimeters)
Pitch
C
D
0/12
10-1/2 in.
(267 mm)
10-1/2 in.
(267 mm)
6/12
10-1/2 in.
(267 mm)
12 in.
(305 mm)
12/12
10-1/2 in.
(267 mm)
17-3/4 in.
(451 mm)
C
D
Appliance Specifications
MPD35PF
Page 1 of 2
P/N 506035-04 REV. A 07/2008
MPD35PF-NM MPD35PF-NE
MPD35PF-PM
Millivolt Models Electronic Models
See
Ceiling Framing
on Page 2
PRODUCT REFERENCE INFORMATION
Cat.
No.
Model
Ship
Weight
Ship.
Volumn
H6945
MPD35PF-NM
220 lbs
46W x 26D x
43H (30 cu.ft.)
H6946
MPD35PF-PM
220 lbs
46W x 26D x
43H (30 cu.ft.)
H6947
MPD35PF-NE
220 lbs
46W x 26D x
43H (30 cu.ft.)
Secure Vent
42-5/8 (1083)
Secure Flex
44-3/8 (1127)
