I had a condensation problem on my last boat, 44' Steel trawler, and I found that leaving the windows open so that there was natural ventilation kept the condenstaion at bay. The problem I had only happened in the winter and I wasn't living on it so it wasn't a problem with a cold boat as all systems were winterized anyway.
So maybe the simplest solution would be to leave the side windows open a little to maintian even temps.Larry
