Heatilator GDST5244I Owner's Manual page 15

Top Vent—Horizontal Termination—Two 45° Elbows
Installation requirements to replace the fi rst 90° elbow with two 45° elbows:
Figure 5.4 Minimum Installation Requirements for Two 45° Elbows-
Top Vent-Horizontal Termination
Top Vent—Horizontal Termination—Three Vertical Elbows
See Figure 5.6 for information about installing elbows horizontally.
Figure 5.5 Three Vertically Installed 90° Elbows
Table 5.2
V min. V +V
1 1
12 in./305 mm 24 ft/7.32 m
H
2
V
2
Heatilator • GDST5244I • 4045-127 Rev Q • 02/07
25 ft max.
(7.62 m)
max. H +H max.
2 1 2
19 ft/5.79 m
Installed
Vertically
H
1
4 ft min.
(1.22 m)
V
1
15