NTI Matrix Installation And Operation Instructions Manual page 14

Matrix
Roof Termination Details
Figure 4-3(a)
Two-Pipe Termination (Roof)
Exhaust
Vertical
Min. 18"
Flashing
Horizontal
4-12" or greater
than 36"
Figure 4-3(c)
PolyPro / InnoFlue Termination (Roof)
Refer to documentation included with termination kit for
complete installation instructions.
Min. 12"
above grade
or snow level
Vent Screen
Vent pipe piece to
retain vent screen
Air-inlet
Min. 12"
above grade
or snow level
Exhaust
Air-inlet
Flashing
Installation and Operation Instructions
Figure 4-3(b)
IPEX Concentric Termination (Roof)
Refer to documentation included with termination kit for
complete installation instructions.
Exhaust center
Air-inlet around
perimeter
Figure 4-3(d)
Exhaust only Termination (Roof)
Figure illustrates two options for exhaust termination only;
neither vent pipe illustrated is for combustion air-inlet.
Vent pipe piece to
retain vent screen
Vent Screen
Exhaust
Option 2
Vent pipe piece to
retain vent screen
Vent Screen
Min. 12"
above grade
or snow level
Flashing
Exhaust
Option 1
Min. 12"
above grade
or snow level
Flashing