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Support System on
Vertical Rise
See Table 2 for
PVC Pipe Lengths
(Field Supplied)
VERTICAL VENTING
Straps or Other Suitable
Supports at minimum of 5 ft. Intervals
90°
Elbow
90° Elbow
Upward Pitch - 1/4" per foot
See Table 2 for
PVC Pipe Lengths
First support placed
(Field Supplied)
as close to furnace
connection as possible
HORIZONTAL VENTING
Figure 20. Horizontal & Vertical Venting
Seal/Caulk
Around Pipes
at Building
90°
Elbow
12" Min.
(Flue Pipe)
7"
Wall
Normal
Snow Level
CLEARANCES FROM SOFFIT
Depth
Must be
outside
of line.
Outlet
Outlet
NOTE: Only outlet vents are shown.
For placement with combustion air
inlet see Figure 1.
33
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