I am ready to vent my boil humidity out of my garage. I want to go through wall. Does anyone do this? If so, would you share your setup?
I am sure you can do this with a simple kitchen hood and fan setup, I have even seen a piece of 6 inch round solid duct and a computer fan. I use my window and side door - which works just fine all winter long (main door most of the rest of the time).
I vent out the wall of my basement using a rectangular duct. See this post for photos and other info:
https://www.homebrewersassociation.org/forum/index.php?topic=21648
The better you enclose the pot and burner, the better the capture of steam and combustion gases. I use a nylon shower curtain with some nomex panels to that end.