Heatilator • Novus DV • 4031-550 Rev G • 11/07
7
In addition to these framing dimensions, also reference the
following sections:
• Clearances and Mantel Projections (Sections 3.C. and 3.D.)
• Vent Clearances and Framing (Section 6)
Rear vent
One 45° elbow
Horiz Term
Rear Vent
Two 90° elbows
Horiz Term
Rear Vent
One 90° elbow
Vert Term
Top Vent
One 90° elbow
Horiz Term
No elbows
Horiz Term
A
A
A
A
A
A
C
B
B
E
F
D
1/2 in. (13 mm) min.
appliance to
combustibles
D
F
1 in. (25 mm)
min. pipe to
combustibles
E
1/2 in. (13 mm)
min. appliance
to combustibles
Alcove
Installation
C
1 in. (25 mm)
min. pipe to
combustibles
G
Drywall
48 in.
(1219 mm)
maximum
Note:
• Illustrations
re
fl
ect typical installations and are FOR
DESIGN PURPOSES ONLY.
• Illustrations/diagrams are not drawn to scale.
• Actual installation may vary due to individual design
preference.
Fire Risk
Provide adequate clearance:
• Around air openings.
• For service access.
Locate appliance away from traf
fi
c areas.
WARNING
A. Select Appliance Location
When selecting a location for your appliance it is important to
consider the required clearances to walls (See Figure 3.1).
Note:
For actual appliance dimensions refer to
Section 16.
Figure 3.1 Appliance Locations
3
3
Framing and Clearances
Model
A
B
C
D
E
F
G
ND3630
inches
36
33-1/2
19-5/8
43-3/8
47
53-1/4
37
mm
914
851
498
1102
1194
1353
940
ND3933
inches
39
35-1/2
19-5/8
43-3/8
47
53-1/4
40
mm
991
902
498
1102
1194
1353
1016
ND4236
inches
42
37-5/8
19-5/8
43-3/8
47
53-1/4
43
mm
1067
956
498
1102
1194
1353
1092
ND4842
inches
48
41-7/8
19-5/8
43-3/8
47
53-1/4
49
mm
1219
1064
498
1102
1194
1353
1245