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Dehumidifier

Discussion in 'Ask All Sailors' started by woodzy, Feb 9, 2019. Add this thread to a FAQ

  1. woodzy

    woodzy

    Joined Sep 21, 2014
    75 posts, 8 likes
    Catalina 28
    US Oceanside Ca..
    Haven't been on in quite some time. Bought a 1994 Catalina 28 mk1 Slipped Oceanside Ca. tired of moisture . any suggestions on a reliable dehumidifier that I can leave on and drain into sink
     


  2. Hello Below

    Hello Below

    Joined May 7, 2012
    575 posts, 55 likes
    Hunter e33
    CA Maple Bay, BC
    I have been eyeballing this guy for a while. Many dehumidifiers require an operating temp of 50°F+. This one states as low as 33°F. If you are a live aboard then you may need a higher output model.

    https://www.amazon.com/Ivation-13-P...t=101&pf_rd_i=267557011&pf_rd_m=ATVPDKIKX0DER
     


  3. Gene Neill

    Gene Neill

    Joined Sep 30, 2013
    2,735 posts, 1,304 likes
    C-22, Albin Vega
    US central Florida


  4. jssailem

    jssailem

    Joined Oct 22, 2014
    8,748 posts, 3,746 likes
    CAL 35 Cruiser
    US Salem, Moored Port Everett WA
    @woodzy
    I bought a unit from Lowes. It has worked well for the past 2 years. Hisense DH-35K1SCLE Energy Star 2-Speed Dehumidifier, 35-Pint. Once I started it the mold was gone. Improved boat smells. Only problem it is a bit large. You have to run a hose to a place to empty the condensation.
     


  5. The Shadow Knows

    The Shadow Knows

    Joined Jun 10, 2017
    146 posts, 56 likes
    Catalina 1980 Catalina 30 Mk II
    US South Pasadena / Tampa Bay
    I bought the Caframo dehumidifier awhile back thru E-Bay. It's low electric draw @ 12" in diameter.

    I use a simple house timer AC hookup & run them for 4 hours starting from 4 to 8 am for moisture removal.
    It's pretty inexpensive & I use 2. One in the main cabin & one near my V-berth.
    There are other brands, but I like these to dry moisture for in Florida, it's humid at times.
    However, there are many others that work just as well.........
     


  6. kloudie1

    kloudie1

    Joined Nov 6, 2006
    8,257 posts, 722 likes
    Hunter 34
    US Mandeville Louisiana
    I used one like this: https://www.homedepot.com/p/Frigida...PIPHorizontal1_rr-_-306628684-_-206734555-_-N
    for a few years .. Worked very well in controlling moisture and mold and mildew.. I had it draining into the sink , and had it secured well on the cabinet top.. Hated to have to wrestle it off when we left for sailing.. Can't use a chemical one here in Louisiana because they saturate very quickly in our humidity. I now have an on board air conditioner that has a "Dehumidify" cycle that runs most f the time when we aren't aboard..
     


  7. The Shadow Knows

    The Shadow Knows

    Joined Jun 10, 2017
    146 posts, 56 likes
    Catalina 1980 Catalina 30 Mk II
    US South Pasadena / Tampa Bay
    K,
    I had them placed on buckets below & never a problem with draining.........
     


  8. jmce1587

    jmce1587

    Joined Mar 20, 2011
    349 posts, 68 likes
    Hunter 31_83-87
    US Kemah
    I use one of the brand names from Wal Mart. Check prices from Wal M, HD and Lowes. Need an external garden hose connection to run into sink or bilge for discharge. I run mine 24/7 with programmed settings. Up side is it keeps boat interior dry and smelling great. Down side as Kloudie mentioned is removal for sailing. Wouldn’t go without one for the high humidity we experience in South Houston area.
     


  9. heritage

    heritage

    Joined Apr 22, 2011
    526 posts, 104 likes
    Hunter 27
    US Cherry Point MCAS
    I have this one: https://www.amazon.com/dp/B01DC5PPWM/ref=dp_cerb_2. I used it in the boat while on a mooring in Florida for a few months. Like others, drilled a drain hole and led water into the sink. The unit says it runs on 9v dc which is provided by the brick inverter that is supplied. The fine print on the inverter said its output is 12v dc. So I hooked it up to my dc system that is powered by a single 100 watt solar panel. It draws about 2 amps at 12v, so I put a timer that limited the dehumidifiers run time to 3 hours every morning to keep the batteries from running down. Worked fine.
     


  10. markwbird

    markwbird

    Joined Nov 26, 2012
    977 posts, 227 likes
    Hunter 34
    US Berkeley
    I use a heater. Works better than any of the dehumidifiers that I have tried.
     


  11. Pizzazz

    Pizzazz

    Joined Sep 11, 2015
    98 posts, 25 likes
    Hunter 31
    US Marina del Rey


  12. Justin_NSA

    Justin_NSA

    Joined Jul 7, 2004
    5,457 posts, 1,118 likes
    Hunter 30T
    US Cheney, KS
    I have one of these. It will fill and stop in about 5-6 days during the summer. I'm looking for the right fitting to tap into the bowl so I can drain it into the sink in the head. 7 x 6 x 11 inches

    [​IMG]
     


  13. seadaddler

    seadaddler

    Joined Dec 19, 2006
    5,503 posts, 145 likes
    Hunter 36
    US Punta Gorda
    I do have Eva dry for many years here in Fl and drilled hole used plastic tubing for draining in sink and many others in my club use same.
    Nice size to store away while cruising.
    Nick
     


  14. Captn Don

    Captn Don

    Joined Apr 15, 2014
    2 posts, 0 likes
    Beneteau Oceanis 281
    US Solomons, Maryland
    So do you guys leave your sink seacocks open to drain the water from the humidifier? I have one of the Eva's and thought of doing this but was uncomfortable with leaving the seacock open. Would draining it into a bucket work for a few days on the Chesapeake?
     


  15. Justin_NSA

    Justin_NSA

    Joined Jul 7, 2004
    5,457 posts, 1,118 likes
    Hunter 30T
    US Cheney, KS
    Yep. The one for the sink in the head is above the waterline.
     


  16. Hello Below

    Hello Below

    Joined May 7, 2012
    575 posts, 55 likes
    Hunter e33
    CA Maple Bay, BC
    The specs show: 8 oz. of water per day at 86° F and 80% R.H.
    It would take a longtime to fill most sink drain hoses and a sink to overflowing with that kind of output. I have an Eva-Dry 1100 set up with the drain into the galley sink and thru hull closed. It keeps the boat at just below 50% RH at 60°F inside (normally about 45°F and 90% humidity outside). I open the thru hull to empty the hose every 3 - 5 days and rarely is the water up to the sink drain. The little guy does all right if no one is aboard. If you were a living on board breathing and cooking you would need a full size dehumidifier.
     


    Captn Don likes this.
  17. Captn Don

    Captn Don

    Joined Apr 15, 2014
    2 posts, 0 likes
    Beneteau Oceanis 281
    US Solomons, Maryland
    Perfect, thanks for the feedback.
     


  18. vetch

    vetch

    Joined Dec 3, 2011
    99 posts, 18 likes
    Catalina C27
    US Bellingham
    I keep one almost exactly like this in my Catalina 27. I took out the float for the auto shutoff and drilled a hole up high in the tank. That way it will just run continuously. I keep it in the galley sink so that when it drains out of the hole it just goes down the drain.
     


  19. NotCook

    NotCook

    Joined Dec 29, 2008
    652 posts, 171 likes
    Treworgy 65' Custom Steel Pilothouse Staysail Ketch
    US St. Croix, Virgin Islands
    That’s cool. If it was set up as a “dump
    load”, it could run all the time when the batteries are fully charged. Will have to look into that...
     




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