Horizontal Termination
Any horizontal termination must fall within the shaded portion of the vent window graph illustrated in figs. 9 or 11. For Snorkel Terminations, see below.
Any horizontal termination except a snorkel termination, must include:
1)Minimum rise of 2 ft.
2)Minimum horizontal run of 12 in. when vertical run is less than 8 ft.
2)Maximum rise of 35 ft.
3)Maximum horizontal run of 27 ft.
4)No more than four 45° or two 90° Elbows
Follow all termination clearance guidelines as speci- fied in fig. 19.
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. 20.
Wall
DO NOT FILL AIR SPACE WITH ANY TYPE OF INSULATION.
Any horizontal run of vent must have a 1/4" rise for every foot of run toward the termination cap. NEVER ALLOW THE VENTING TO RUN DOWNWARD FROM STOVE TO TERMINATION; DOWNWARD VENT RUNS TRAP HEAT AND CAUSE HIGH TEMPERATURES 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.
Snorkel Terminations
THE AIR INLET RESTRICTOR MUST BE SET FULLY OPEN FOR ANY SNORKEL TERMINATION. See Fig. 6, pg. 9.
With a 14” Snorkel:
The horizontal run made directly off the rear of the stove into a 14” snorkel cap should include no more than a single 12” straight section as shown in fig. 17. One 45° Elbow may be used for a corner installation as shown in fig. 18.
With a 36” Snorkel:
The maximum horizontal run may be no more than 6 ft. (182 cm.)
12 in. (305 mm)
C
L
24 in. |
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Snorkel |
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(305 mm) |
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14” |
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355 mm | 57” | |
Max. | ||
(1448 mm) | ||
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12” | 25 | 1/2 | in. | |
Vent | Snorkel | |||
Pipe or | (648 mm) | |||
less |
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Figure 16.
•Minimum vent for horizontal termination.
•14” Maximum horizontal run directly off rear of stove with 14” Snorkel termination.
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Max. |
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6 ft. |
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183 cm
Figure 17. Maximum Horizontal and Vertical Run with 36” Snorkel Termination.
| Max. | |
45° Elbow | 14” | |
355 mm | ||
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| See Note F | |
| Fig. 20 |
12 in. Straight Pipe
Wall Thimble
and Trim Collar
Figure 18. Corner Installation with 14” Snorkel Termination.
14
