
23
Heatilator • GDST4336IFT, GDFL4136IFT Installation Manual • 2480-980 Rev. B • 3/17
Figure 4.12
Top Vent - Horizontal Termination - (continued)
Three Elbows
H
2
H
1
V
2
V
1
V
1
Minimum
H
1
Maximum
V
2
Minimum
H
2
Maximum
V
1
+ V
2
Minimum
H
1
+ H
2
Maximum
Elbow only
1 ft.
305 mm
6 in.
152 mm
1 ft.
305 mm
6 in.
152 mm
1 ft.
305 mm
6 in.
152 mm
3 ft.
914 mm
6 in.
152 mm
2 ft.
610 mm
1 ft.
305 mm
3 ft.
914 mm
1 ft.
305 mm
6 ft
1.8 m
1 ft.
305 mm
6 ft
1.8 m
2 ft.
610 mm
12 ft.
3.7 m
2 ft.
610 mm
10 ft.*
3 m
2 ft.
610 mm
10 ft.*
3 m
4 ft
1.2 m
18 ft.
5.5 m
3 ft.
914 mm
12 ft.*
3.7 m
3 ft.
914 mm
12 ft.*
3.7 m
6 ft
1.8 m
18 ft
5.5 m
*H
1
+ H
2
= 18 ft. (5.5 m) Maximum V
1
+ V
2
+ H
1
+ H
2
= 50 ft. (15.2 m) Maximum