Originally Posted by a64pilot
I just got this dehumidifier and it is outstanding, my old one was noisy as all get out, this one sounds like a dorm fridge and a fan, very quiet. I drain it into the bilge
or I would be emptying the bucket daily.
I don't live aboard though and don't have any experience with your level of cold.
Amazon.com: Frigidaire FFAD5033R1 Energy Star Dehumidifier with Effortless Humidity Control, 50 pint: Home & Kitchen
But a humidifier will add some heat, they are nothing at all but an air conditioner, the water
collects on the cold evaporator and the air is re-heated by the condenser, since energy is being expended, heat is produced. It won't heat a room or anything, but at least it's not cooling
Oh, and once you get it dry inside it will feel a lot warmer than the same temp with condensing humidity
Warm air + high humidity = nightmare.
Cold air + high humidity also = nightmare.
As A64 says, getting the air dry will make a massive difference.
The dehumidifier A64 linked is very nice, uses about 530 watts, and has a water container that will hold about 13 pints (over 7ltrs). It will remove up to 50 pints of water a day (obviously once you have dry air, that will go down).
You have to be really careful with the small dehumidifiers, because a lot of them will only remove a few pints of water a week, and can't really cope if water is constantly being added to the air (handy for clothing
cupboards and such really).
In fact I was seriously considering a 70 pint watermaker
over even a 50 pint, but after A64's comments, I am rather reassured (given the internal volume of his 38ft over the 32ft I'm buying).
Now if you are using a 2kw heater presently (on shore power
I assume), have a look for a ceramic electric
fan heater, that has a high power position of 1.5kw, and a low position of 750watts.Odds on it will be the same one I have, and it's a real belter for the money
. You will then have about the same power usage as you have now, and will probably be warmer and far more comfortable, without the damp.
This is the heater I have, but it was a lot cheaper with a different name on it, and it oscillates if you want, plus the tip over is sensitive - it switches off when I pick it up, and restarts when I set it down on its base:
A dehumidifier and a steam cleaner (kills mold
and spores, along with other nasties), are the first things I am going to get for my boat.
PS I am going to save all the water from my dehumidifier, and put it into containers with a little bleach to kill any nasties off, then I will use it for showers, washing
clothes, rinsing sails
, rinsing the decks, and such. This will make my 65 gallons of water tankage go a lot further.