Hearth and Home Technologies GDST3831I owner manual Top Vent Horizontal Termination Three Elbows

1. Top Vent - Horizontal Termination - (continued)

Three Elbows

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 7.3).

V1 Minimum**		H1 + H2 Maximum		V2	V1 + V2 Min.
90 Elbow**		2 ft.	610 mm	*	*
1/2 ft.**	152 mm	6 ft.	1.8 m	*	*
1-1/2 ft.**	457 mm	10 ft.	3 m	*	*
2-1/2 ft.**	762 mm	12 ft.	3.7 m	*	*
3-1/2 ft.	1.1 m	14 ft.	4.3 m	*	*

H1 + H2 Max. =14 ft. (4.3 m)

*No specific restrictions on this value

EXCEPT V1 + V2 + H1 + H2 cannot exceed 40 ft. (12.2 m)

See Warning Below**

H2

V2

V1

H1

WARNING**

Fire Risk.

•When using SLP-HRC-SS and SLP-HRC-ZC-SS termination caps on top vented fireplaces, a one foot minimum vertical vent section is required before

installing first elbow.

•When using DVP-TB1 termination cap on top vented fireplaces, a three foot minimum vertical vent section is required before installing first elbow.

•When using any other cap, a section of vertical pipe (12 inches minimum) MUST be installed prior to attaching a 90° elbow.

Figure 7.6

28 Heatilator • GDST3831I • 2127-900 Rev. F • 10/08