Vent Diagrams - Heatilator HEIR36H-IFT Installation Manual

F. Vent Diagrams
WARNING! Risk of Fire. This appliance requires a minimum of 24 inches of vertical venting before attaching any elbow to
the appliance. DO NOT attach elbow directly to the appliance.
General Rules:
• This appliance is approved for use with Hearth & Home Technologies DVP venting systems ONLY.
• When penetrating a combustible wall, a wall shield firestop must be installed.
• When penetrating a combustible ceiling, a ceiling firestop must be installed.
• This appliance requires a minimum of 24 inches of vertical pipe attached directly to the appliance starting collar before
attaching a 90 degree or 45 degree elbow.
• Horizontal termination cap should have a 1/4 inch downward slant to allow any moisture in cap to be released.
1. Top Vent - Horizontal Termination
One Elbow
HEIR36 (NG/LP), HEIR42 (NG/LP),
HEIR50 (NG/LP)
V Minimum
1
2 ft 610 mm 7 in*
2.5 ft 762 mm 17 in.
3 ft 914 mm
4 ft 1.2 m
5 ft 1.5 m
6 ft 1.8 m 12 ft
7 ft 2.1 m 14 ft
10 ft 3.0 m 20 ft
20 ft 6.1 m 40 ft
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 4.8
22 Heatilator • HEIR36-IFT, HEIR42-IFT, HEIR50-IFT Installation Manual • 2458-980 Rev. B • 8/17
H Maximum
1
178 mm
432 mm
2 ft 610 mm
4 ft 1.2 m
9 ft 2.7 m
3.7 m
4.3 m
6.1 m
12.2 m
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.
H
1
V
1