A friend of mine built a walk-in fridge in his garage. He wants to drop the humidity but the room is "sealed" and at 40*F. I have a couple fridges hanging around, full and mini sized. I'm looking for tips on constructing a dehumidifier.
I'm in the Northwest USA where the Sun is more of a concept than a confirmed celestial object so the "desiccant dried in the sun" idea is not an option.
I can put a hole or two in the walls of the garage (if needed) but I'd like some tips on converting a fridge into a dehumidifier that functionns at ~40*F (and without spraying freon all over).