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Model
A
NDV/NBV3630
35"
NDV/NBV3933
38"
NDV/NBV4236
41"
NDV/NBV4842
47"
19-1/8 in.
11-5/8in.
Gas Line
Access
6-1/2 in.
19-5/8 in.
The rough framing dimensions shown represent the distance from stud to stud only and do not take into consideration the addition of drywall. Please
refer to installation instructions for complete specifications and drawings when installing this product. Go to www.heatilator.com to download.
ability
B
C
30"
8-5/8"
33"
11-5/8"
36"
14-5/8"
42"
20-5/8"
DV Top
C
A
B
3 in.
34-7/8 in.
A
A
Rough
Model
Opening
(width)
NDV/NBV3630
36"
NDV/NBV3933
39"
NDV/NBV4236
42"
NDV/NBV4842
48"
Technical Specifications
BV Top
C
A
31-1/2 in.
34 in.
1-1/2 in.
B
1/2 in.
min. appliance
to combustibles
Drywall
B
A
Top Vent
One 90° elbow
Horiz Term
Rear Vent
One 90° elbow
Vert Term
A
E
1 in.
min. pipe to
E
combustibles
Model
A
NDV3630
36"
NDV3933
39"
NDV4236
42"
NDV4842
48"
Most Recognized Brand
19-1/8 in.
23-1/2 in.
11-5/8 in.
Alternative
Gas Access
34-1/2 in.
Electrical
Access
2-3/8 in.
1-3/4 in.
8 in.
15-3/4 in.
C
A
48 in.
G
maximum
Alcove
Installation
Rear vent
One 45° elbow
Horiz Term
No elbows
Rear Vent
Horiz Term
Two 90° elbows
A
Horiz Term
C
B
C
D
E
33-1/2"
19-5/8"
43-3/8"
47"
35-1/2"
19-5/8"
43-3/8"
47"
37-5/8"
19-5/8"
43-3/8"
47"
41-7/8"
19-5/8"
43-3/8"
47"
Novus
1 in.
D
min. pipe to
combustibles
1/2 in. min.
appliance to
combustibles
D
A
A
F
F
F
G
53-1/4"
37"
53-1/4"
40"
53-1/4"
43"
53-1/4"
49"
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