I find condensation only happens when the hull/deck is colder than the air inside the cabin. If the cabin is allowed to cool the same as the ambient, and the hull too, there will not be any condensation. However, heating the cabin air when the outdoor ambient is cold, will allow the cabin air to absorb moisture which condense on windows, under a cold deck or on the inside of a cold hull.
I don't like keeping 120v power connected to my boat while away and simply use solar fans to ventilate the cabin. I wind up with a few spots that need a wipe down, but it's acceptable. My boatyard has power available but I can't prevent a tripped breaker, ground fault, or another boatowner pulling my cord out to put theirs in. Other tips that may seem obvious: 1) remove all liguids from the boat except fuel, as they will remain cold after ambient air rises and condensation will form on their containers. I bag up all the toiletries and take em home, ready to bring back with the sails. 2) If you must leave fuel cans or bottled water at the boat, set them in a container outside the cabin. 3) Keep the bilge dry, sponge or wet vac and dry those before leaving the boat. 4) Wipe up any moisture you find during winter visits. 5) If you find mold, wipe down using CLR Mold & Mildew Foaming Action Stain Remover. It is fantastic and has no bleach and you don't need a mask, or gloves. Chuck Resolute, 1989 C&C 34R, Pasadena, Md > On January 21, 2020 at 4:52 PM John Conklin via CnC-List > <cnc-list@cnc-list.com> wrote: > > Exactly what I run! All year! > plus a small stand up oil filled heater for the real extreme > Otherwise no issues so far > > John Conklin > S/V Halcyon > S/V Heartbeat > www.flirtingwithfire.com > > > > > > On Jan 21, 2020, at 3:59 PM, Dennis C. via CnC-List > <cnc-list@cnc-list.com> wrote: > > > > > > > > > > I keep two of these on my boat. Of course, you need 120 > VAC for them. > > > > > > https://www.amazon.com/Caframo-Limited-9406CAABX-Dehumidifier-Circulator/dp/B0009L675W > > > > > > These heater fans are very light just a couple pounds, if that. > > > > During the cooler months I put one on the cabin sole in the galley > > area and one on the cabin sole forward of the head. Touche' has a > > day/night solar vent in the head. So one heater fan is forward of the > > vent; one aft. I never see condensation on the boat. > > > > During the summer months, I place a single heater fan on the cabin > > sole in the center of the saloon. Again, I never see condensation. > > > > Dennis C. > > Touche' 35-1 #83 > > Mandeville, LA > > > > On Tue, Jan 21, 2020 at 1:18 PM Bill Coleman via CnC-List < > > cnc-list@cnc-list.com mailto:cnc-list@cnc-list.com > wrote: > > > > > > > > > > I wonder if anyone has any profound opinions on condensation, > > > two aspects in particular I am concerned with. > > > > > > One is in the engine, I have seen boats who have plugged the > > > exhaust pipe(s), and maybe even the intake inside the boat – > > > > > > > > > > > > And also in the cabin. I usually leave a hatch and something > > > else on the other end of the boat open, so some air can circulate > > > throughout the winter. > > > > > > Then I began to doubt the usefulness of this a couple > > > weekends ago, when It hit 71 here, and was still 45 down in the cabin. > > > > > > I noticed lots of condensation below, which really bothers me. > > > > > > > > > > > > Does anyone know what the best solution is ? > > > > > > > > > > > > Bill Coleman > > > > > > Erie PA > > > > > > _______________________________________________ > > > > > > Thanks everyone for supporting this list with your > > > contributions. Each and every one is greatly appreciated. If you want > > > to support the list - use PayPal to send contribution -- > > > https://www.paypal.me/stumurray > > > > > > > > > > > _______________________________________________ > > > > Thanks everyone for supporting this list with your contributions. > > Each and every one is greatly appreciated. If you want to support the list > > - use PayPal to send contribution -- https://www.paypal.me/stumurray > > > > > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray > >
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