Hearth and Home Technologies Cyclone-BN Vent Diagrams, Top Vent Horizontal Termination One Elbow

D. Vent Diagrams

WARNING

Fire Risk. Explosion Risk.

Do NOT pack insulation or other combustibles between ceiling firestops.

•ALWAYS maintain specified clearances around venting and firestop systems.

•Install wall shield and ceiling firestops as specified.

Failure to keep insulation or other material away from vent pipe may cause fire.

1. Top Vent - Horizontal Termination

One Elbow

NOTE: There MUST be a 25%
reduction in total H when using
flex vent except when using the
simple up and out installation
(see Figure 5.7).	HT

VT Min.		HT Max.
1.5	ft.	2	ft.
2.5	ft.	5	ft.
3.5	ft.	8	ft.
4.5 ft.		11 ft.

VT + HT = 40 ft. Max

VT

Figure 5.3

Two Elbows

H2

NOTE: There MUST be a 25% reduction in total H when using flex vent except when using the simple up and out installation (see Figure 5.7).

H1VT

H1	H2	VT Min.		HT Max.
*	*	1.5	ft.	2	ft.
*	*	2.5	ft.	5	ft.
*	*	3.5	ft.	8	ft.
*	*	4.5 ft.		11 ft.

VT + HT = 40 ft. Max.

*No specific restrictions on this value EXCEPT VT + HT cannot exceed 40 ft. Max.

Figure 5.4

Heat & Glo • Cyclone-BN, Cyclone-BC • 2073-900 Rev. N • 10/08 13