Heatiator CD4842IR-C Rear Vent Vertical Termination One Elbow Two Elbows, Minimum Maximum

Rear Vent - Vertical Termination

One Elbow

V1

H1

Figure 7.18

Two Elbows

V1

V1 Minimum		H1 Maximum
6 in.	152 mm	2 ft.	610 mm
1 ft.	305 mm	3 ft.	914 mm
2 ft.	610 mm	5 ft.	1.5 m
3 ft.	914 mm	7 ft.	2.1 m
4 ft.	1.2 m	8 ft.	2.4 m
5 ft.	1.5 m	8 ft.	2.4 m

V1 + H1 = 40 ft. (12.2 m) Maximum

H1 = 8 ft. (2.4 m) Maximum

V1 Minimum			H1 + H2	Maximum
Back to Back 90º Elbows			3 ft.		914 mm
2 ft.		610 mm	6 ft.		1.8 m
4 ft.		1.2 m	9 ft.		2.7 m
6 ft.		1.8 m	12 ft.		3.7 m
8 ft.		2.4 m	15 ft.		4.6 m
	V1 + H1 = 40 ft. (12.2 m) Maximum

H1 + H2 = 8 ft. (2.4 m) Maximum

INSTALLED

HORIZONTALLY H1

H2

Figure 7.19

Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/11 35