I’d just treat bath exhaust like I do my plumbing vent pipes. I’d connect bath fans to schedule 40 PVC pipe and send the exhaust up through the roof. Once the pipe exits the roof, use a gentle ...

Because of space limitations, we had to vent the exhaust horizontally out to the front of the house using 2-inch PVC ducting. We have been unplugging the water heater every night because the ...