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VII. Venting (continued)
6D Min.
12 in. Min.
Above Snow Line
6D Min.
24 in. Min.
Above Intake
28
6D Min.
12 in. Min.
Above Snow Line
6D Min.
Above Snow Line
Figure 12: Multiple Appliance Direct Vent Termination
4D Min.
Grade/ Snow Line
6D Min.
Notes:
1. D = Vent Pipe Diameter
2. All terminations must have bird/rodent
screens.
3. If Possible, Install Sidewall venting on a
wall away from prevailing wind.
12 in. Min.
4. For roof terminations, install vent terminal
downstream of prevailing winds relative to
intake terminal.
5. It is recommended to use tee terminations
with a vertical run in extra windy areas.
WARNING
WARNING
The required spacing between vent
and combustion air terminals is
to prevent flue gas recirculation.
Recirculation of flue gas products
into the combustion air supply can
cause damage to property or the
appliance.
6D Min.
4D Min.
Grade/Snow Line
AMP 400-1000L I&O Manual
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