Guys...I notice that I my humidity onboard tracked pretty much with the prevailing exterior conditions, especially during the winter when the AC’s weren’t running much.Since we live in Charleston, SC it’s humid all the time so I got a stand-alone dehumidifier which measures about that which rolls conveniently under the galley dinette on Maggie Mae (53-MY)...and i put her to work. It’s rated to dehumidify about 1400 sq ft so I leave the companionway doors open and let the big dog eat. It pumps an incredible amount of moisture out....estimate a gallon every 8 hours or so. I had never had a moisture problem per se, but from a climate control standpoint it “feels” better (ie not as clammy)....so in the long run it’s got to help keep down interior moisture related problems? So what have been others experience in using dehumidifiers onboard.
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02-06-2020 05:35 PM #1
Stand Alone Dehumidifiers- Good idea or not worth it?
J R McCoy-100 Ton Master1980 53my-“Maggie Mae”Hull #576 Charleston, SC- Isle of Palms
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02-06-2020 08:55 PM #2Senior Member
- Join Date
- Jul 2007
- Posts
- 1,001
Re: Stand Alone Dehumidifiers- Good idea or not worth it?
I have two down below running 24/7, it keeps it nice and dry and helps immensely with the comfort factor. One in the master stateroom and one in the hall between the VIP stateroom and VIP head. When we have the engine room doors open for maintenance the one in the hall needs to be emptied every day, otherwise they can go two or three days between filling up once you get the humidity down. I keep them set to 50% all the time.
BTW, the dehumidifiers are running at the same time as the air conditioning which is supposed to lower the humidity and yet they constantly pull moisture out of the air. As far as I am concerned, the drier the better! We live aboard so we manually empty them as needed.Michael & Beth
Hull Number CV312
63’ Cockpit Motor Yacht
1986 model launched in August 1987
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02-07-2020 08:04 AM #3Senior Member
- Join Date
- Jan 2013
- Posts
- 219
Re: Stand Alone Dehumidifiers- Good idea or not worth it?
I run one whenever the boat is closed up for several days or more. Really helps keep it dry. BTW, I use the water it generates for the batteries since it is by definition "distilled" water.
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Re: Stand Alone Dehumidifiers- Good idea or not worth it?
I also have used one for years now - it is plumbed to discharge overboard. Works great.
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02-07-2020 09:38 AM #6Senior Member
- Join Date
- Jul 2013
- Posts
- 1,188
Re: Stand Alone Dehumidifiers- Good idea or not worth it?
I have one setup on the counter in the guest head. It drains straight into the sink to overboard. Also considered plumbing it to the bilge to keep the bilge water nice and clean and non-stagnant.
Makes a huge difference in how the boat feels/smells after being shut up for a week or two.SOUTHPAWS
1986 52C Hull #391 8v92TI
PENSACOLA, FL
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02-07-2020 09:48 AM #7
Re: Stand Alone Dehumidifiers- Good idea or not worth it?
I use one that drains in the shower in the summer. It doesn't seem to do as much in the winter when the temperature is lower.
Robert
MANCHIONEAL
1973 43DC #365
Mattox Creek, VA
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Re: Stand Alone Dehumidifiers- Good idea or not worth it?
"DON'T BELIEVE ANYTHING YOU READ OR HEAR AND ONLY HALF OF WHAT YOU SEE" - BEN FRANKLIN
Endless Summer
1967 50c 12/71n DDA 525hp
ex Miss Betsy
owners:
Howard P. Miller 1967-1974
Richard F Hull 1974-1976
Robert J. & R.Scott Smith 1976-present
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02-07-2020 11:28 AM #10
Re: Stand Alone Dehumidifiers- Good idea or not worth it?
So I’m reassured that many of you find that’s it’s worthwhile. The one I just got is kind of neat in that it has a built in pump and I can attach a line to it and run it to a sink or bilge or overboard as need be. I currently have it pumping into the galley sink, but will plumb it elsewhere less invasive when I get a moment. I thought about running it to a bilge but most of my forward bilge space is dry and I don’t want to introduce a new source of water. My engine room bilges are not dry as unlike Robert I don’t have dripless seals..so maybe I’ll plumb to there.
J R McCoy-100 Ton Master1980 53my-“Maggie Mae”Hull #576 Charleston, SC- Isle of Palms