Heatilator • NDV30-IFT, NDV33-IFT, NDV36-IFT, NDV36-IFT-NVR, NDV42-IFT Installation Manual • 2620-980 Rev. C • 8/20
14
Models
I
J
K
L
NDV30-IFT
NDV30L-IFT
in.
47-3/8
66-1/2
75-3/8
61-3/8
mm
1204
1689
1915
1559
NDV33-IFT
NDV33L-IFT
in.
50-1/4
66-1/2
75-3/8
61-3/8
mm
1277
1689
1915
1559
NDV36-IFT
NDV36L-IFT
NDV36-IFT-NVR
in.
53-1/4
66-1/2
75-3/8
61-3/8
mm
1353
1689
1915
1559
NDV42-IFT
NDV42L-IFT
in.
59-1/4
66-1/2
75-3/8
61-3/8
mm
1505
1689
1915
1559
For optimum flame appearance in a corner installation terminating horizontally,
configurations (1) and (6) are recommended instead of (3). See Figure 4.23.
(3) Rear vent
One 45° elbow
Horiz Term
(6) Rear Vent
Two 90° elbows
Horiz Term
(4) Rear Vent
One 90° elbow
Vert Term
(1) Top Vent
One 90° elbow
Horiz Term
(5) 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
(2) Alcove
Installation
C
1 in. (25 mm)
min. pipe to
combustibles
G
Drywall
48 in.
(1219 mm)
maximum
NOTE:
Consider the mantel or cabinet system to be installed
and comply with the necessary requirements for elevated hearth.
Refer to instructions included with cabinet system.
In addition to these framing dimensions, also reference the
following sections:
• Clearances and Mantel Projections (Section 10)
• Vent Clearances and Framing (Section 5)
H*
* As B increases, H increases accordingly.
I
L
J
K
Figure 3.7 Appliance Locations - Part 2, Columns I-L