Horizontal Venting (Horizontal Termination)
•The maximum horizontal run made directly off the rear of the stove into a standard horizontal cap (#984 or #985) must be no more than a 9” section of Simpson
•The maximum horizontal run made directly off the rear of the stove into a 14” snorkel cap (#982) must be no more than a 24” section of Simpson
•The horizontal termination cap must maintain a 3" clearance (80 mm) to any overhead combus- tible projections 2 1/2" (60 mm) or less. Maintain 12" (300 mm) clearance from projections exceed- ing 2 1/2". See Figure 13.
•Any horizontal run of vent must be level or have a 1/4" (5 mm) rise for every foot (300 mm) of run toward the termination cap. DO NOT ALLOW THE VENT TO RUN DOWNWARD, AS THIS CAN CAUSE HIGH TEMPERATURES AND THE POSSIBILITY OF A FIRE.
•A 1” (26 mm) clearance must be maintained around all
•For buildings with vinyl siding, a Vinyl Siding Standoff should be installed between the vent cap and the exterior wall (Simpson
•A 10" X 10" (250 mm x 250 mm) square hole is required to maintain proper vent clearances through a combustible wall. Simpson
•DO NOT FILL AIR SPACE WITH ANY TYPE OF INSULATION.
•Do not recess the termination cap into the exterior wall or siding.
OPTION # 1 |
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| 10” Max. | ||
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| 250 mm | ||||
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Simpson
Horizontal Termination
Cap #984 or #985
9” (230 mm) Max. Horizontal Simpson
Figure 12-1. Maximum horizontal run to rear termination.
OPTION # 2 |
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| 5” Max. | ||||
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| 130 mm |
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Simpson
Horizontal Termination
Cap #984 or #985
6” (150 mm) Min. Horizontal Simpson
Figure 12-2. Minimum horizontal run to rear termination.
OPTION # 3 | Simpson |
| 14” Snorkel |
| Termination #982 |
24” (610 mm) Max. Horizontal Run into 14” Snorkel,
Simpson
Both Draft Restrictors Required
Figure 12-3. Maximum horizontal run to a snorkel termination.
IMPORTANT:
FOLLOW THE INSTALLATION IN-
STRUCTIONS PROVIDED WITH EACH SIMPSON
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