Horizontal Termination
Wall
DO NOT FILL AIR SPACE WITH ANY TYPE OF INSULATION.
The minimum horizontal run made directly off the rear of the stove into a standard horizontal cap shall be no less than a 6” vent section. See fig. 8.
The maximum horizontal run made directly off the rear of the stove into a standard horizontal cap (#984 or #985) must include no more than a 12” and 6” section of Simpson
The maximum horizontal run made directly off the rear of the stove into a 14” snorkel cap must include no more than a 24” vent section . See fig. 10.
The horizontal termination cap must maintain a 3" clearance to any overhead combustible projections 2 1/2" or less. It must also maintain 12" clearance from projections exceeding 2 1/2". See fig. 14.
Any horizontal run of vent must be level or have a 1/4" rise for every foot of run toward the termination cap. NEVER ALLOW THE VENTING TO RUN DOWN-
WARD FROM STOVE TO TERMINATION; DOWNWARD VENT RUNS TRAP HEAT AND CAUSE HIGH TEMPERA- TURES TO DEVELOP WITHIN THE VENT THAT COULD START A FIRE.
Install a Vinyl Siding Standoff between the vent termination and an exterior wall covered by vinyl siding material to prevent potential heat damage to the siding.
Do not recess the termination cap into a wall or siding.
Options for immediate horizontal venting directly off the rear of the stove
Figure 8. Minimum Horizontal Run - Standard Termination.
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| 5” min. |
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| Standard Horizontal | |
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| 130 mm |
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| Termination Cap | |
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Min. Horizontal: 6”
No draft restriction required.
WALL THIMBLE required.
Figure 9. Maximum Horizontal Run - Standard
Termination. |
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| Standard Horizontal | ||||
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| 17” Max. |
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| Termination Cap | ||
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| 430 mm |
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Max. Horizontal Run: 12”
No draft restriction required.
WALL THIMBLE required.
Figure 10. Maximum Horizontal Run with Snorkel Termination.
14” Snorkel
24 3/4”
(630 mm)
Max. Horizontal run into a 14” snorkel: 24”
A draft restrictor is required.
WALL THIMBLE required.
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