46
Figure 37. Horizontal and Vertical Venting
VERTICAL VENTING
(2-Pipe Shown)
Support System on
Vertical Rise
First Support as Close
to Furnace as Possible
Couplings with 2
Hose Clamps (Optional)
HORIZONTAL VENTING
(2-Pipe Shown)
FLUE PIPE
PVC TEE, Reducer,
and 1/2” x 1/2” Hose Barb
Coupling with 2 Hose
Clamps (Optional)
Straps or Other Suitable
Supports at minimum of 5 ft. Intervals
Upward Pitch - 1/4” per foot
(Flue Pipe)
First support placed as close
to furnace connection as possible
Wall
Normal
Snow Level
COMBUSTION AIR
90° Elbow
(both ends)
Seal/Caulk
Around Pipes
at Building
90°
Elbow
7”
12” Min.
90°
Elbow
90° Elbow
Support System on
Vertical Rise
COMBUSTION AIR
PVC TEE, Reducer,
and 1/2” x 1/2” Hose Barb
FLUE PIPE
FLUE PIPE
COMBUSTION AIR
See Table 2 for PVC Pipe
Lengths (Field Supplied)
See Table 2 for PVC Pipe
Lengths (Field Supplied)
See Table 2 for PVC Pipe
Lengths (Field Supplied)
1 2 3
4
5 6 7
8
1 2 3
4
5 6 7
8
1 2 3
4
5 6 7
8