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

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

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Image 28
Hearth and Home Technologies GDST3831I owner manual Top Vent Horizontal Termination Three Elbows