13
Figure 7. Venting with Two 90° Elbows
VENTING WITH TWO (2) 90° ELBOWS
V
H
H + H
1
FT. (M)
FT. (M)
FT. (M)
4´ MIN.(1.2m)
2´ MAX.(610mm)
2' MAX.(610m)
20´ MAX.(6.2m)
20´ MAX.(6.2m)
20'
MAX.(6.2m)
Rise to Run up to 9 FT. Vertical: Ratio = 2:1
Rise to Run above 9 FT. Vertical: Ratio = 1:1
V+ V
1
= 20´ MAX. (6.2m)
H
1
V
1
H
V
H
V