Heat & Glo Townsend I Installer's Manual page 16

VENTING WITH THREE (3) 90
V (FT)
3' MIN.(914mm)
4' MIN.(1.2m)
18' MIN.(5.4m)
V+ V
Figure 10. Vent System with three 90° elbows
13
TOWNSEND I
o ELBOWS
H (FT)
3' MAX.(914mm)
4' MAX.(1.2m)
18' MAX.(5.4m)
+ H+H = 40' MAX.(12.19m)
1 1
H+H = 18' MAX.(5.4m)
1
TOWNSEND II
VENTING WITH THREE (3) 90
V (FT) H (FT)
3'MIN.(610mm) 2' MAX.(610mm)
4'MIN.(1.2m) 2.5' MAX.(1762mm)
18' MIN.(5.4m) 12' MAX.(3.66m)
V+ V + H+H = 40' MAX.(12.19m)
1 1
H+H = 12' MAX.(3.66m)
1
o ELBOWS