Re: Dehumidifier in wet/rain PNW?
Living aboard in the wet season here in the PNW I'd expect you'd want to run it pretty well full time. We leave ours running (non liveaboard) at 50% and it keeps things nicely dry... with two or more people breathing below the load would be higher and I'd expect you'd need to run it steadily... or at least every day if its too noisy at night.
Once the boat is 'dried out' we get very little water in the reservoir even now... but it's different with the moisture from people on board all the time. In the off season the cabin RH will go up to 80 -90% overnight with two of us sleeping and no dehu running....
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)