Instructions / Assembly
®
System 1738 Installation Methods22
3.  Once the installer has determined the termination 
location, cut 2 holes in the wall large enough 
to accommodate the pipe. Pipe diameters and 
distance between hole centers can be found in 
Table 4.
4.  Slide both the intake and vent pipe through the 
holes. Solvent weld both pipes to the Base of the 
vent termination kit (see Figure 13) following the 
solvent welding procedures outlined in this guide.
To appliance intake 
air connection
From appliance vent
pipe connection
Vent/Air
termination
Grade or snow line
12"
MIN
12"
MIN
to overhang
* confirm 
minimum 
clearance for 
termination 
with local 
building code.
*
*
Possible Orientations
Figure 14: Approved Installation Orientation
Figure 13: Typical Side Wall Termination
Vent Piping
Air Piping
Vent Base
Vent Cap
12" MIN. between edge of air inlet and 
 adjacent vent outlet
Vent/Air Termination
Vent
Air
Figure 15: Sidewall Termination Assembly
Figure 16: Minimum Clearances: Multiple Side Wall Terminations
5.  To fasten the Base to the wall, use the supplied screws 
and anchors. A 3/16" diameter x 1-3/16" deep hole, will 
need to be drilled for the anchors. Locate and mark 
the anchor hole using the Base as a template and 
then drill the required holes.
6.  Screw the Cap to the Base using the supplied 
screws.
7.  Once the vent termination and pipe are secured, 
the wall penetrations will need to be sealed from the 
interior using a PVC-compatible sealant material.










