19
V
H
H + H
1
1' MIN. (305 mm)
2' MAX. (610 mm)
4' MAX. (1.22m)
2' MIN. (610 mm)
4' MAX. (1.22 m)
8' MAX. (2.4m)
3' MIN. (914 mm)
6' MAX. (1.86 m)
12' MAX. (3.6m)
4' MIN. (1.22 m)
8' MAX. (2.48 m)
16' MAX. (4.8m)
V+H+H
1
= 40' MAX. (12.4 m) H = 8' MAX. (2.48 m) H+H
1
= 16' MAX. (4.8m)
Figure 14. Venting with Two 90° Elbows
V (FT)
H + H
1
(FT)
1' MIN. (305 mm)
2' MAX. (610 mm)
2' MIN. (610 mm)
4' MAX. (1.22 m)
3' MIN. (914 mm)
6' MAX. (1.86 m)
4' MIN. (1.22 m)
8' MAX. (2.48 m)
H + H
1
= 8' MAX. (2.48 m)
V + H + H
1
= 40' (12.2m) MAX.
Use D-Series
components only.
V
H
1
H
V
H
H
1
NOTE: There MUST be a 25%
reduction in total H when using
flex vent except when using the
simple up and out installation
(see Figure 9).