4. Rear Vent - Vertical Termination
One Elbow
V1
V1 Minimum | H1 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 |
V1+ H1 = 40 ft (12.2 m) Maximum
H1
Figure 7.17
Two Elbows
V2
V1 Minimum | H1 + H2 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 |
V1+ H1 | + H2= 50 ft (15.2 m) Maximum | ||||
H1+ H2= 16 ft (4.9 m) Maximum |
|
INSTALLED
HORIZONTALLY
H2 H1
Figure 7.18
34 | Heat & Glo • |