15
HORIZONTAL VENTING INSTRUCTIONS
For combustible walls using ProTech FasNSeal
where the single wall vent pipe must pass
through the side wall, a UL Listed FasNSeal
wall thimble shall be used as follows:
• 3” FasNSeal vent pipe - use 3” FasNSeal Wall
Thimble #FSWT03 4” FasNSeal vent pipe - use
• 4” FasNSeal Wall Thimble #FSWT04
The thimble is adjustable for different wall
thickness, with a maximum wall thickness of 7
inches. Seal the thimble along the outside edge
of the plate with caulk or silicone and fasten to
the wall with screws or nails.
c) For single wall pipe through non-combustible
walls, the hole through the wall need only be
large enough to maintain the pitch of the vent
pipe, and provide proper sealing. A thimble
is not required for single wall pipe passing
through noncombustible walls.
d) The venting system shall terminate at least 3
feet above any forced air inlet located within 10
feet. The venting system shall terminate at least
4 feet below, 4 feet horizontally from, or 1 foot
above any door, window, or gravity air inlet into
any building. The bottom of the vent shall be
located at least 12 inches above grade.
Figure #10
To Next Page
Loading...
