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 17 ,
Figure 18 , and Figure 19 .
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 17 , Figure 18 , and Figure 19 ).
Suggest use of a bird screen of ¼" stainless steel or plastic mesh (IPEX System 636
drain grate) to guard against foreign objects.
Figure 17 Vent termination clearance Figure 18 Vent termination clearances
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