Heatilator HEIR36H Installation Manual page 23

2. Top Vent - Vertical Termination - (continued)
2 ELBOWS
Note: Flue restrictor is permit-
ted ONLY on 30 ft. minimum
vertical runs with no elbows.
Figure 4.10
V
2
H
1
Heatilator • HEIR36, HEIR42, HEIR50 Installation Manual • 2285-980 Rev. G • 12/14
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.
HEIR36 (NG/LP), HEIR42 (NG/LP), HEIR50 (NG/LP)
2 ft
3 ft
4 ft
5 ft
6 ft
*No specifi c restrictions on this value EXCEPT
V
V
1
V H
1 1
610 mm 1 ft 305 mm
914 mm 3 ft 914 mm
1.2 m 4 ft
1.5 m 9 ft
1.8 m 12 ft
V + V + H = 50 ft (15.2 m) Max.
1 2 1
+ V + H cannot exceed 60 ft (18.3 m).
1 2 1
After V = 6 ft, then H Max.= V
1 1
V
2
*
*
1.2 m *
2.7 m *
3.7 m *
x 2
1
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