33
Heatilator • GDST4336I, GDFL4136I, GDCR4136I, GDCL4136I • 2129-900 Rev. W • 12/15
3. Rear Vent - Horizontal Termination - (continued)
Two Elbows
Figure 7.15
Figure 7.16
Three Elbows
H
2
V
1
H
1
INSTALLED
HORIZONTALLY
H
3
H
2
V
1
H
1
H
1
Maximum
V
1
Minimum
H
2
Maximum
H
1
+ H
2
Maximum
1 ft.
305 mm
Back to Back
90º Elbows
1 ft.
305 mm
2 ft.
610 mm
2 ft.
610 mm
6 in.
152 mm
2 ft.
610 mm
4 ft
1.2 m
3 ft.
914 mm
1 ft.
305 mm
2 ft.
610 mm
5 ft.
1.5 m
3 ft.
914 mm
2 ft.
610 mm
4 ft
1.2 m
7 ft.
2.1 m
3 ft.
914 mm
3 ft.
914 mm
9 ft.
2.7 m
12 ft.
3.7 m
3 ft.
914 mm
4 ft
1.2 m
18 ft.
5.5 m
20 ft.*
6.1 m*
V
1
+ H
1
+ H
2
= 40 ft (12.2 m) Maximum H
1
= 3 ft (914 mm) Maximum
*H
1
+ H
2
= 20 ft (6.1 m) Maximum
H
1
Maximum
V
1
Minimum
H
2
+ H
3
H
1
+ H
2
+ H
3
Maximum
1 ft.
305 mm
Back to Back
90º Elbows
1 ft.
305 mm
2 ft.
610 mm
2 ft.
610 mm
6 in.
152 mm
1.5 ft. 457 mm
3.5 ft.
1.1 m
3 ft.
914 mm
1 ft.
305 mm
2 ft.
610 mm
5 ft.
1.5 m
3 ft.
914 mm
2 ft.
610 mm
4 ft.
1.2 m
7 ft.
2.1 m
3 ft.
914 mm
3 ft.
914 mm
9 ft.
2.7 m
12 ft.
3.7 m
3 ft.
914 mm
4 ft.
1.2 m
12 ft.
3.7 m
15 ft.
4.6 m
V
1
+ H
1
+ H
2
+ H
3
= 40 ft (12.2 m) Maximum H
1
= 3 ft (94 mm) Maximum
H
1
+ H
2
+ H
3
= 15 ft (4.6 m) Maximum