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Heatilator • GDST4336IFT, GDFL4136IFT Installation Manual • 2480-980 Rev. B • 3/17
Rear Vent - Vertical Termination
One Elbow
Figure 4.24
Two Elbows
Figure 4.25
H
1
V
1
INSTALLED
HORIZONTALLY
H
1
H
2
V
1
V
1
Minimum
H
1
Maximum
1 ft.
305 mm
3 ft.
914 mm
2 ft.
610 mm
5 ft.
1.5 m
3 ft.
914 mm
7 ft.
2.1 m
4 ft.
1.2 m
8 ft
2.4 m
5 ft.
1.5 m
8 ft
2.4 m
V
1
+ H
1
= 40 ft (12.2 m) Maximum
V
1
Minimum
H
1
+ H
2
Maximum
Back to Back 90° Elbows
3 ft.
914 mm
2 ft
610 mm
6 ft.
1.8 m
4 ft.
1.2 m
9 ft.
2.7 m
5 ft.
1.5 m
10 ft.
3 m
6 ft.
1.8 m
12 ft.
3.7 m
V
1
+ H
1
+ H
2
= 50 ft (15.2 m) Maximum
H
1
+ H
2
= 16 ft (4.9 m) Maximum