I've come across some Reddit posts suggesting that Panasonic Whisper bathroom exhaust fans might have a design flaw that causes them to leak condensation onto the bathroom floor, especially during showers. I'm curious if anyone here has experienced this issue, particularly if you have a Panasonic fan installed in a bathroom ceiling beneath a cold attic during winter. Some posts mentioned that this could happen regardless of the duct insulation or its routing. What has your experience been like during steamy showers?
1 Answer
From my experience, they shouldn't drip if you use insulated ducting of the right size and have a well-sealed roof cap. That's key to preventing condensation problems.