Heatilator HEIR36H Owner's Manual page 27

1. Top Vent - Horizontal Termination
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.
One Elbow
Note: Flue restrictor is permit-
ted ONLY on 30 ft. minimum
vertical runs with no elbows.
HEIR36 (NG/LP), HEIR42 (NG/LP),
HEIR50 (NG/LP)
V Minimum
1
2 ft 610 mm
2.5 ft 762 mm
3 ft 914 mm
4 ft 1.2 m
5 ft 1.5 m
6 ft 1.8 m
7 ft 2.1 m
10 ft 3.0 m
20 ft 6.1 m
After V = 6 ft then H = 2 x V ft Maximum
1 1
V + H = 60 ft Maximum
1 1
*when used with approved termination caps
Figure 7.3
H
1
H Maximum
1
7 in* 178 mm
17 in. 432 mm
2 ft 610 mm
4 ft 1.2 m
9 ft 2.7 m
12 ft 3.7 m
14 ft 4.3 m
20 ft 6.1 m
40 ft 12.2 m
Heatilator • HEIR36, HEIR42, HEIR50 • 2285-900 Rev. F • 11/12
WARNING
WARNING! Risk of Fire!
• HEIR36(NG/LP), HEIR42(NG/LP) and HEIR50(NG/LP) models
require a minimum of 24 inches of vertical venting before attaching
any elbow to the appliance.
DO NOT attach elbow directly to the appliance.
V
1
27