Heat & Glo Crescent II Owner's Manual page 25

E. Vent Diagrams
Fire Risk. Explosion Risk.
Do NOT pack insulation or other combustibles between ceiling fi restops.
• ALWAYS maintain specifi ed clearances around venting and fi restop systems.
• Install wall shield and ceiling fi restops as specifi ed.
Failure to keep insulation or other material away from vent pipe may cause fi re.
1. Top Vent - Horizontal Termination
One Elbow
Figure 7.4
Two Elbows
H
2
Figure 7.5
WARNING
H
1
H
1
INSTALLED
HORIZONTALLY
Heat & Glo • Crescent II • 2083-902 Rev. U • 4/15
V Minimum
1
Elbow only
6 in 152 mm
1 1/2 ft 457 mm
2 1/2 ft 762 mm
3 1/2 ft 1067 mm
4 1/2 ft 1.4 m
V
V + H = 38 ft (11.6 m) Maximum
1
1 1
H = 15 ft (4.6 m) Maximum
1
V Minimum
1
2 - 90º Elbows
back to back
6 in 152 mm
1 1/2 ft 457 mm
2 1/2 ft 762 mm
3 1/2 ft 1067 mm
4 1/2 ft
V + H + H
1 1
H + H
1 2
V
1
H Maximum
1
2 ft 610 mm
2 ft 610 mm
3 ft 914 mm
5 ft 1.5 m
7 ft 2.1 m
15 ft 4.6 m
H + H Maximum
1 2
Cannot do
2 610 mm
3 ft 914 mm
5 ft 1.5 m
7 ft 2.1 m
1.4 m 15 ft 4.6 m
= 38 ft (11.6 m) Maximum
2
= 15 ft (4.6 m) Maximum
25