I also use a dehumidifier. It sets on the galley counter and drains into the sink. Went for a larger model with the old style compressor and a humidistat. The unit runs till it reaches my selected humidity level (50%), and then shuts off including the fan. Every 15 minutes the fan cycles to check humidity and run as necessary. This unit is capable of sucking 20 pints per day out of the air. Much more impressed with this unit than the membrane style. Keeps the whole boat nice and dry.
Ted