47
Figure 36. Horizontal and Vertical Venting
VERTICAL VENTING
(2-Pipe Shown)
Support System on
Vertical Rise
First Support as Close
to Furnace as Possible
Straight Neoprene
Couplings with 2
Hose Clamps
See Table 2 for PVC Pipe Lengths
(Field Supplied)
HORIZONTAL VENTING
(2-Pipe Shown)
Exhaust V
e
nt
PVC TEE, Reducer,
and 1/2” x 1/2” Hose Barb
Straight Neoprene Coupling
with 2 Hose Clamps* (Optional)
Straps or Other Suitable
Supports at minimum of 5 ft. Intervals
Upward Pitch - 1/4” per foot
Outlet Exhaust Vent
First Support Placed
as Close to Furnace
Connection as Possible
Wall
Normal
Snow Level
Combustion Air
90° Elbow
Seal/Caulk
Around Pipes
at Building
90°
Elbow
7”
12” Min.
90°
Elbow
Upward Pitch
1/4” per foot
90° Elbow
90°
Elbow
Support System on
Vertical Rise
Combustion Air
See Table 2 for PVC Pipe Lengths (Field Supplied)
Condensate
Drain Line
PVC TEE, Reducer,
and 1/2” x 1/2” Hose Barb
Condensate
Drain Line
Condensate
Drain Line
Exhaust V
ent
Exhaust V
ent
Comb
ustion Air