
Rear Vent - Vertical Termination
One Elbow
V1
| V1 Minimum | H1 Maximum | ||
| 6 in. | 152 mm | 2 ft. | 610 mm | 
| 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 = 8 ft (2.4 m) Maximum
H1
Figure 7.17
Two Elbows
| H1 + H2 | Maximum | V1 Minimum | |||
| Back to Back 90º Elbows | 3 ft. | 
 | 914 mm | ||
| 
 | 
 | 
 | 
 | 
 | 
 | 
| 2 ft | 
 | 610 mm | 6 ft. | 
 | 1.8 m | 
| 4 ft | 
 | 1.2 m | 9 ft. | 
 | 2.7 m | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
| 6 ft. | 
 | 1.8 m | 12 ft. | 
 | 3.7 m | 
| 8 ft. | 
 | 2.4 m | 15 ft. | 
 | 4.6 m | 
| V1 | + H1 = 40 ft (12.2 m) Maximum | ||||
| H1 + H2 = 8 ft (2.4 m) Maximum | 
 | ||||
V2
INSTALLED
HORIZONTALLY H1
H2
Figure 7.18
| Heat & Glo •  | 31 |