So I'm planning out a bathroom remodel and part of that is replacing the vent fan because currently mine is just venting into my attic (no bueno). I know normally bathrooms are vented out through the roof but my bathroom is on an exterior wall so I was wondering if I could just vent it out the side of the house. I'm going to be ripping open that wall anyways and I would much rather cut a hole in the side of the house than run a vent pipe up through the roof.
Also I'm in Minnesota if climate is a concern.
I have a bathroom vent going through the wall. No problem at all, in Wisconsin.
The vent cover has louvers that close it off, plus a shroud covering it. Weather is not a concern.
Now that you mention it I have a dryer vent that's exactly like that. If something like that works for warm moist air from a dryer then I don't see why it wouldn't work for warm moist air from a bathroom.