Vents... Dehumidifier... ???

Sep 20, 2016
26
Hunter 240 Holland, MI
I was told to leave a 60 watt bulb on inside my cabin buy the locals at Lake Guntersville. Only had the boat, O'day 25, a few months seems to work.

BTW I'm at North Alabama Sailing Marina, where are you?
This is how the West Marine pancake style dryers work; They keep the temperature in the cabin warmer than the outside air which stops condensation from forming. Nifty trick. The pancake dryers do it with a small heating element instead of a light bulb. Same idea, just darker!
 
Jan 21, 2014
1
Beneteau 373 Annapolis, MD
I have used for the past two seasons a "solid state" dehumidifier. This operates on 120v and drains into my sink. Works all winter thru freezing temps and keeps the relative humidity on my boat (Beneteau 373) below 50%.
 
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pateco

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Aug 12, 2014
2,207
Hunter 31 (1983) Pompano Beach FL
I have used for the past two seasons a "solid state" dehumidifier. This operates on 120v and drains into my sink. Works all winter thru freezing temps and keeps the relative humidity on my boat (Beneteau 373) below 50%.
How did you plumb it to the drain? Pictures?
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
22,746
CAL 35 Cruiser #21 moored EVERETT WA
Not sure about the Ivation, but the one I bought at the Big Box Store (keep the RoboCop happy - not brand names) had a hose bib above the collection bucket. Just attached a small hose, positioned the unit higher than the sink, run the hose to the sink and let gravity do it's work.
 
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jwing

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Jun 5, 2014
503
ODay Mariner Guntersville
I found that leaving the drop boards out gives my boat plenty of ventilation. I use a boom tent to keep rain from entering through the companionway. This is a successful example of my philosophy of starting with the simplest and least expensive possible solution, then adding complexity/expense until an acceptable solution is found.
 
Jul 1, 1998
3,062
Hunter Legend 35 Poulsbo/Semiahmoo WA
What I'd like to find is one that has defrost capability and one where if the power goes off for any length of time it will come back on and run with the same RH% setting it was set for. Normally my setting is between 40% and 50% RH.
The one I have does have defrost capability (so that part is good) but if the power goes off much longer than a moment it turns itself OFF!!! A real bummer because it is usually in the late fall to early spring when that happens. Don't appreciate making a trip down to the boat every time the lights flicker just to check if it is still on or not.
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
22,746
CAL 35 Cruiser #21 moored EVERETT WA
Check out WEMO. I think the have a smart plug. It connects to wifi and can tell you if the plug is powering the attached appliance. Saw it on line the other day. Pretty cool. Reports the power consumption of the appliance.
 
Jun 6, 2016
205
Catalina 275 Wilmette, IL
The Nicro's, new and old models, are on sale for $100 at WM this weekend. I looked at the old models at WM and was surprised that the 3" and 4" are the same size accept for the hole size. Doesn't make sense to go with the lower flowing 3" if you are still stuck with the 9" diameter exterior. I'm hesitant to mount this fairly large vent on my 27' boat, but I'll probably appreciate it in the long run and may reduce my reliance on the damp-rids.

Anyone have any information about the new Nicro solar vents? I know the motor is replaceable.
 
Apr 24, 2006
868
Aloha 32 Toronto, Lake Ontario
After trying several Nicro vents I found something that worked far better (for me).
I figured that to remove odors I had to ventilate ALL the sources and not just the cabin.
What worked was a 12 volt computer fan (100 ma - check what you buy as they vary considerably in current draw).
It was attached directly to the engine room vent. This pulled air from the engine room, the bilge (it's connected to the engine room) and finally from the cabin (many places where air can be sucked down into the bilge). Fresh air enters the cabin via vents in the hatch boards.

Result was (finally) an odor free boat as the bilge and engine room were definite "contributors".
Current drain is so low I just leave it running all the time.

I use it over the winter as well - except I add a piece of flexible dryer vent so it exhausts outside the winter cover. For winter I power it with a small 40 watt solar panel beside the boat. Without any regulator it screams like an F14 when the sun is out but moves a ton of air.

Never any kind of odor in the spring...
 
Jun 6, 2016
205
Catalina 275 Wilmette, IL
What worked was a 12 volt computer fan (100 ma - check what you buy as they vary considerably in current draw).
With no shore power, a single FLA G27 battery and 20 hours of engine time a year, I would probably need to connect in a solar panel to support the 100ma. I like the idea so I will have to investigate this further.
 
Jul 5, 2011
734
Oday 28 Madison, CT
We installed a 5" Nicro solar fan (turned to exhaust direction) into the forward hatch, then cut slits into the plexi top companionway hatch door (two door system) so some air could move. Finally (have shore power) we use a drum-shaped fan driven heater placed on the main cabin floor near midships. This combination has prevented serious mildew and musty smell issues for the past 27 years with this boat (O'Day 28).