Sidewall direct vent with separate vent and air pipes shall be terminated as follows:
Locate the intake air and exhaust vent terminations on the same plane (side) of the building.
Place the exhaust vent termination, so that it reaches 12" minimum above the down-turned intake
to avoid exhaust re-ingestion.
(Optionally) Raise the elevation of both terminations in “periscope style” after passing through the
wall, then to gain the required clearance configure as shown in Figure 14 , Figure 15 , and Figure
16 .
Use a 45° elbow on the exhaust termination to launch the plume up and off the sidewall (for
protection of wall). A short piece of venting cut at 45° gives a horizontal termination protected from
wind loads (see Figure 14 , Figure 15 , and Figure 16 ).
Suggest use of a bird screen of ¼" stainless steel or plastic mesh (IPEX System 636 drain grate) to
guard against foreign objects.
Caution
When the outdoor temperature drops below 5°F/-15°C, take care installing Concentric Side
Wall Termination kits. Possible blockage of the combustion air intake can occur when the
outdoor temperature drops below this temperature.
Figure 14 Vent termination clearance Figure 15 Vent termination clearances
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