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Hearth & Home Technologies • PIER-DV36IN, ST-DV36IN Installation Manual • 2658-980 Rev. C • 4/22
30
Figure 4.21
Top Vent - Vertical Termination - (continued)
Three Elbows
INSTALLED
HORIZONTALLY
H
1
H
2
V
1
V
2
V
1
H
1
+ H
2
V
2
V
1
+ V
2
Minimum H
1
+ H
2
Maximum
ELBOW ONLY
1 ft.
305 mm
*
*
*
1 ft.
305 mm
1 ft.
305 mm
2 ft.
610 mm
*
*
*
2 ft.
610 mm
2 ft.
610 mm
4 ft
1.2 m
*
*
*
4 ft
1.2 m
3 ft.
914 mm
9 ft.
2.7 m
*
*
*
9 ft.
2.7 m
4 ft
1.2 m
12 ft.
3.7 m
*
*
*
12 ft.
3.7 m
6 ft.
1.8 m
18 ft.
5.5 m
*
*
*
18 ft.
5.5 m
H
1
+ H
2
= 18 ft (5.5 m) Maximum
*No specific restrictions on this value EXCEPT
V
1
+ V
2
+ H
1
+ H
2
cannot exceed 50 ft (15.2 m)