1. Top Vent - Horizontal Termination - (continued)
Two 45° Elbows replacing One 90° Elbow
4 ft min.
(1.22 m)
25 ft max. 
(7.62 m)
Figure 7.4
Two Elbows
Note: For corner installations: A 6 in. (152 mm) section of straight pipe may need to be attached to the appliance before a 90º elbow, to allow the vent pipe to clear the top standoffs.
V1 min. | V1 max. | H1+H2 max. | H1+H2+H3 max. | ||||
ft | m | ft | m | ft | m | ft | m |
0.5 | 0.15 | - | - | 6 | 1.83 | - | - |
|
|
|
|
|
|
|
|
1 | 0.30 | - | - | 11 | 3.35 | 11 | 3.35 |
1.5 | 0.46 | - | - | 18 | 5.49 | 18 | 5.49 |
|
|
|
|
|
|
|
|
2 | 0.61 | - | - | 25 | 7.62 | 25 | 7.62 |
- | - | 25 | 7.62 | 25 | 7.62 | 25 | 7.62 |
H2
Installed
Vertically
H3
Installed
Horizontally
H1V1
H2
Figure 7.5
26 | Heatilator • Eclipse • |