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Heatilator •
HEIR36, HEIR42, HEIR50 • 2285-900 Rev. D • 8/12
H
1
V
1
1. Top Vent - Horizontal Termination
Figure 7.3
One Elbow
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
HEIR36 (NG/LP), HEIR42 (NG/LP),
HEIR50 (NG/LP)
V
1
Minimum H
1
Maximum
2 ft 610 mm 7 in* 178 mm
3 ft 914 mm 2 ft 610 mm
4 ft 1.2 m 4 ft 1.2 m
5 ft 1.5 m 9 ft 2.7 m
6 ft 1.8 m 12 ft 3.7 m
7 ft 2.1 m 14 ft 4.3 m
10 ft 3.0 m 20 ft 6.1 m
20 ft 6.1 m 40 ft 12.2 m
After V
1
= 6 ft then H
1
= 2 x V ft Maximum
V
1
+ H
1
= 60 ft Maximum
*when used with approved termination caps
Note: Flue restrictor is permit-
ted ONLY on 30 ft. minimum
vertical runs with no elbows.
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.