13
Figure 11. Venting with Two 90° Elbows
V (FT.)
H + H
1
(FT.)
1' MIN. (305mm)
2' MAX. (610mm)
2' MIN. (610mm)
4' MAX. (1.22m)
3' MIN. (914mm)
6' MAX. (1.86m)
4' MIN. (1.22m)
8' MAX. (2.4m)
H+H
1
= 8' MAX.(2.4m)
V+H+H
1
= 40' (12.4m) MAX.
VENTING WITH TWO (2) 90° ELBOWS