Heatilator HEIR36H Installation Manual page 20

Two Elbows
Note: Flue restrictor is permit-
ted ONLY on 30 ft. minimum
vertical runs with no elbows.
H
2
HEIR36 (NG/LP), HEIR42 (NG/LP),
V Minimum
1
3 ft 914 mm
4 ft
5 ft
6 ft
7 ft
8 ft
9 ft
10 ft
V + H
1
H + H
1
Figure 4.7
20
INSTALLED
HORIZONTALLY
HEIR50 (NG/LP)
H + H
1 2
18 in 457 mm
1.2 m 3 ft 914 mm
1.5 m 7 ft 2.1 m
1.8 m 10 ft 3.0 m
2.1 m 14 ft 4.3 m
2.4 m 16 ft 4.9 m
2.7 m 18 ft 5.5 m
3.0 m 20 ft 6.1 m
+ H = 60 ft Maximum
1 2
= 20 ft Maximum
2
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 36 inches of vertical venting before attaching
any elbow to the appliance for the venting confi guration in Figure 7.4.
DO NOT attach elbow directly to the appliance.
H
1
V
1