dehumidifiers

[Cutter]

Sorry to start another thread on this but would like info on how long a dehumidifer should be programmed to be on for each day. Presumably most condensation occurs overnight as the temp falls so should 2 hours in the morning be sufficient?
Boat is a Dehler 37 staying in for the winter.
Thanks
Richard

 

[Chris_Robb]

If the boat is fairly well sealed you need run it only for a couple ofhours a day once you have given it an initial blast to get the water out. If there is too much ventilation then you will be playing catch up all the time.

If you are on charged marina electrics then put a time switch on. Last year I was wintering in Chichester Marina and the first 6 weeks cost me £75 in electrics - dehumidifier not on time switch. Still can't believe that the meters were correct!

 

[Guest]

My dehumidifier and small green-house heater stay on 24 hours a day when the boat is out of the water for 4 months or so. I can't see the point of only having it working for a few hours a day. It really would not make that much difference. No boat can be hermetically sealed so damp, cold air will be getting in all of the time. It pays to seal all vents as well or you are trying to dehumidify the planet. However, the marina I use does not charge for electricity so that could be a factor!
P.S. It is also a good time of year to do the disposable nappies in the bilge wheeze to get that annoying last bit of water out that the pump cannot quite get!
All the best.