Vent Diagrams - Heat & Glo Crescent II Owner's Manual

D. Vent Diagrams
Fire Risk. Explosion Risk.
Do NOT pack insulation or other combustibles between firestops.
• ALWAYS maintain specified clearances around venting and firestop systems.
• Install firestops as specified.
Failure to keep insulation or other material away from vent pipe may cause fire.
1. Top Vent - Horizontal Termination
One Elbow
Figure 5.3
Two Elbows
H
2
Figure 5.4
12
WARNING
H
1
H
1
INSTALLED
HORIZONTALLY
Heat & Glo • Crescent II • 2083-902 Rev. G • 9/05
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
V + H
1 1
V
1 H = 15 ft (4.6 m) Maximum
1
V Minimum
1
2 - 90 0 elbows back
to back
6 in
1 1/2 ft
2 1/2 ft
3 1/2 ft
4 1/2 ft
V + H
1
H + H
1
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
1.4 m 15 ft 4.6 m
= 38 ft (11.6m) Maximum
H + H Maximum
1 2
Cannot do
152 mm 2 610 mm
457 mm 3 ft 914 mm
762 mm 5 ft 1.5 m
1067 mm 7 ft 2.1 m
1.4 m 15 ft 4.6 m
+ H = 38 ft (11.6 m) Maximum
1 2
= 15 ft (4.6 m) Maximum
2