I'm in Michigan. The temp swings are the biggest issue. It was 20 F in the shop this AM when I went out to turn on the heat.
I need to finish the filters before I can out the system to work and see if I have any water issues. I read on the garage journal site of guys using these (sometimes in series):
http://www.harborfreight.com/cpi/cta...emnumber=97686
BTW, Steve. Everything I've read says to keep away from plastic. Order of preference: Cooper, Alum, or steel.
--JMarsa