Heatilator • Novus DV • 4031-550 Rev G • 11/07
9
D
C
B
A
Clearance to Ceiling
32-1/2 in. (826 mm)
0 in.
0 in. TO LEVEL
OF STANDOFFS
Drywall
0 in.
1/2 in.
(13 mm)
1/2 in.
(13 mm)
Combustible flooring may be installed next
to the front of the appliance.
Combustible Object
36 in.
(914 mm)
Figure 3.2 Clearances to Combustibles
C. Clearances
Fire Risk
Odor Risk
• Install appliance on hard metal or wood
surfaces extending full width and depth
of appliance.
• Do NOT install appliance directly on
carpeting, vinyl, tile or any combustible
material other than wood.
WARNING
Model
A
Rough Opening
(Width)
B
Rough Opening
(Height)
C
Rough Opening
(Depth)
D
Rough Opening
(DVP Pipe)
ND3630
in.
36
34-7/8
19-5/8
10
mm
914
886
498
254
ND3933
in.
39
34-7/8
19-5/8
10
mm
991
886
498
254
ND4236
in.
42
34-7/8
19-5/8
10
mm
1067
886
498
254
ND4842
in.
48
34-7/8
19-5/8
10
mm
1219
886
498
254
Note:
If the inside of the framed cavity is to be
fi
nished,
the framing dimensions
must
include the
fi
nished
surface. If drywall is to be attached to the rear wall, the
depth must be measured from the drywall surface.