Two Elbows
Note: For corner installations: A 6 inch (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 Minimum | H1 + H2 Maximum | ||
Elbow only | Not allowed | ||
6 in. | 152 mm | 2 ft. | 610 mm |
1 ft. | 305 mm | 4 ft. | 1.2 m |
457 mm | 11 ft. | 3.4 m | |
2 ft. | 610 mm | 17 ft. | 5.2 m |
762 mm | 20 ft. | 6.1 m |
V1 + H1 + H2 = 40 ft. (12.2 m) Maximum
H1 + H2 = 20 ft. (6.1 m) Maximum
V1 = 1 ft. (305 mm) Minimum
V1 Minimum | H1 + H2 Maximum | ||
Elbow only | Not allowed | ||
6 in. | 152 mm | Not allowed | |
1 ft. | 305 mm | 2 ft. | 610 mm |
2 ft. | 610 mm | 4 ft. | 1.2 m |
3 ft. | 914 mm | 6 ft. | 1.8 m |
4 ft. | 1.2 m | 8 ft. | 2.4 m |
6 ft. | 1.8 m | 12 ft. | 3.6 m |
10 ft. | 3.0 | 20 ft. | 6.1 m |
V1 + H1 + H2 = 40 ft. (12.2 m) Maximum
H1 + H2 = 20 ft. (6.0 m) Maximum
V1 = 1 ft. (305 mm) Minimum
H2
H1
INSTALLED
HORIZONTALLY
V1
Figure 7.4
Heat & Glo • | 27 |