MINIMUM EFFECTIVE LENGTH
TYPICAL BASEMENT INSTALLATION
Installing Support Brackets
A horizontal pipe support MUST BE used for each 3 feet of horizontal
run. The pipe supports should be placed around the pipe and nailed
in place to framing members. There MUST BE a 3 inch clearance
to combustibles above 6-5/8 inch diameter pipe and elbows and
1 inch clearance on both sides and bottom of 6-5/8 inch pipe to
combustibles on all horizontal pipe sections and elbows.
Vertical runs of this vent systems must be supported every 4 feet
above the appliance flue outlet by wall brackets attached to the
6-5/8 inch vent pipe and secured with nails or screws to structural
framing members.
43902-0-1021
POWER VENT
2'
2'
NOTE:
MINIMUM
EFFECTIVE
1'
LENGTH IS 10 FT
1'
FOR NATURAL
AND 15 FT FOR
PROPANE.
Figure 44
INSTALLING FIRESTOPS
Firestops are required for safety whenever the vent system passes
through an interior wall, an exterior wall, or a ceiling. These firestops
act as a firebreak heat shield and as a means to insure that minimum
clearances are maintained to the vent system.
Horizontal runs in the vent system which pass through either interior
or exterior walls, require the use of wall firestops on both sides of
the wall through which the vent passes.
Position the firestops on both sides of the 10 x 11 inch hole, previously
cut. Secure with nails or screws. The heat shields of the firestops
MUST BE placed towards the top of the hole. Continue the vent
run through the firestops. See Figure 46.
Figure 45
Figure 46
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