I had a freind make a air dryer for his shop , He took a small water
heater took it apart
cut it in half .Then he took small room dehumidifier emptyed the freon
out of it and put the evaporator coils
inside the tank. Then he weled it all back up recharged the
dehumidifier put the insulation back around the
tank .It works great it keeps the air around 35 deg. I an not sure how
he emptys all the water that codensis
in the bottom of the tank but i can hear it let some air out abour
every hour.