I'm looking for a way to ventilate my cabin. I use dessacants but they don't seem to do the job 100%. I'm noticing some mold spots and a bit of corrosion on the window frame. Biggest problem is that in the winter my boat is in Florida and I am 1500 miles away and may leave the boat for 2 weeks unattended. Don't really want to leave a fan running and not into cutting a 4" hole in my cabin for a solar fan. Anybody come up with any good ideas that work ? Thanks !