Condensing gas fired furnace vent termination

[msteger]

Did a 2006 build today and noticed that the condensing gas fired furnace's PVC vent pipe penetrated the roof and stopped. No cover or elbow installed. From the exterior (before going inside), I figured this was a plumbing stack vent. Common sense would tell me that this should have a cover of some sort to prevent rain water entry. Suggestions??

The gas water heater's PVC vent did have a cover installed at the top.

[Richard Moore]

Any rain that enters, just like the regular condensate, will drain back to the pump resevoir and subsequently get pumped out. Not a problem IMO as long as it's the exhaust and not an intake.

[Scottpat]

Just to be safe, check with the manufacturer of the system. Some do have specific requirements that differ from the norm.