
Heat & Glo • Crescent II • 2083-902 Rev. U • 4/15
26
Top Vent - Horizontal Termination - (continued)
Three Elbows
H
2
H
1
V
2
V
1
V
1
Min.
H
1
Max.
V
2
Min.
H
2
Max.
Elbow only
2 ft
610 mm
*
=
V
2
1-1/2 ft
457 mm
2 ft
610 mm
*
=
V
2
1-1/2 ft
457 mm
3 ft
914 mm
*
=
V
2
2-1/2 ft
762 mm
5 ft
1.5 m
*
=
V
2
3-1/2 ft
1.06 m
7 ft
2.1 m
*
=
V
2
4-1/2 ft
1.4 m
15 ft
4.6 m
*
=
V
2
*When using V
2
, H
2
Max = V
2
. If V
2
= 0, then H
2
Max = 1-1/2 ft (38 mm)
(H
1
+ H
2
) cannot exceed 15 ft (381 mm) when using appropriate V
2
.
Figure 7.6