We started running a dehumidifier when we full timed, and it just carried over to the present rig. It works, probably better than any other method. Yes, we run the fan in the bath when showering, but I don't like leaving windows and vents open, so when it's time to shut down for the evening, the dehumidifier takes over. And let me tell you, towels are dry in the morning, my sinuses are dry, and the camper feels very dry. The dehumidifier just works. No sweating windows, no muggy feel etc etc.
John and Rebecca Dickson
Emma-8 / Little John-5 / Iva-1+
2013 Ford F-350 Lariat FX4, CC LB PSD, DRW
2015 Jayco Jay Flight 28BHBE (#8)