Quote Originally Posted by Cyclonite
hmm well im trying to get around having an exhaust and intake for the cab....I was hoping I could use a/c to keep temps and humidity in check Im going to pick up a free used window a/c and see if I can convert it into a true sealed split system via cardboard and spray foam insulation since the only connection shared by both sides is the refrigerant line.

I keep picturing if I were to go the exhaust route that the fans wouldnt stay off for more than 5min effectively wasting huge amounts of co2.
Well most ACs can be setup to run in a "recirculate" mode that doesn't exchange air to the outside. Try to set it up that way, and just see if it accomplishes what you want.

Good luck with it.