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Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. F • 04/08 15
H
1
V
1
Figure 5.3
Figure 5.4
D. Vent Diagrams
1. Top Vent - Horizontal Termination
One Elbow
Two Elbows
INSTALLED
HORIZONTALLY
H
1
H
2
V
1
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.
WARNING
V
1
Minimum H
1
Maximum
Cerona-36 ONLY 1/2 ft 152 mm 2 ft 610 mm
1 ft 305 mm 2 ft 610 mm
2 ft 610 mm 5 ft 1.5 m
3 ft 914 mm 8 ft 2.4 m
4 ft 1.2 m 11 ft 3.4 m
5 ft 1.5 m 14 ft 4.3 m
6 ft 1.8 m 17 ft 5.2 m
7 ft 2.1 m 20 ft 6.1 m
8 ft 2.4 m 23 ft 7.0 m
V
1
= 40 ft. (12.2 m) Maximum
H
1
= 23 ft. (7.0 m) Maximum
V
1
+ H
1
= 63 ft. (19.2 m) Maximum
Note: Must have
a minimum verti-
cal vent before
attaching a 90º
elbow to the unit.
See chart.
Minimal Vertical Vent
Model ft. mm
Cerona-36 1/2 152
Cerona-42 1 305
V
1
Minimum H
1
Maximum
Cerona-36 ONLY 1/2 ft 152 mm 2 ft 610 mm
1 ft 305 mm 2 ft 610 mm
2 ft 610 mm 5 ft 1.5 m
3 ft 914 mm 8 ft 2.4 m
4 ft 1.2 m 11 ft 3.4 m
5 ft 1.5 m 14 ft 4.3 m
6 ft 1.8 m 17 ft 5.2 m
7 ft 2.1 m 20 ft 6.1 m
8 ft 2.4 m 23 ft 7.0 m
V
1
+ H
1
+ H
2
= 63 ft. (19.2 m) Maximum
H
1
+ H
2
= 23 ft. (7.0 m) Maximum
Note: Must have
a minimum verti-
cal vent before
attaching a 90º
elbow to the unit.
See chart.
Minimal Vertical Vent
Model ft. mm
Cerona-36 1/2 152
Cerona-42 1 305