January 2, 2011 at 11:11 am
My water heater is vented through the side of my house, with 3" PVC piping and terminates with a 90-deg elbow, pointed towards the ground. However, the vent pipe ends up on the western (wind-facing) exposure of the home, resulting in a significant draft being produced when the power vent is not operating. I have a separate fresh air pipe on the same wall.
My question is – can I install a trap-style vent cover on the home’s exterior in place of the PVC elbow? I feel that this would significantly reduce or eliminate the draft entering the house through the exhaust piping.