14
Figure 12. Venting with Two 90° Elbows
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)
40' MAX. (12.4m)
8' MAX. (2.4m)
V+H+H
1
=
H+H
1
=
V FT.
H + H
1
(FT.)
VENTING WITH TWO (2) 90
o
ELBOWS