Roof Termination Details – Direct Vent Installation - NTI VM110 Installation And Operation Instructions Manual

Vmax I&O Manual
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Roof Termination Details – Direct Vent Installation
Two-Pipe Termination (Roof)
Exhaust
Vertical
Min. 18"
Flashing
Horizontal
4-12" or greater
than 36"
PolyPro / InnoFlue Termination (Roof)
Refer to documentation included with termination kit for
complete installation instructions.
Min. 12"
above grade
or snow level
Figure 4-7(a)
Vent Screen
Vent pipe piece to
retain vent screen
Air-inlet
Min. 12"
above grade
or snow level
Figure 4-7(c)
Exhaust
Air-inlet
Flashing
Figure 4-7(b)
IPEX Concentric Termination (Roof)
Refer to documentation included with termination kit for
complete installation instructions.
Exhaust center
Air-inlet around
perimeter
Figure 4-7(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
Flashing
│General Venting
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
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