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humidity
I think it takes both heat AND ventilation. Heat without ventilation is a mould-spore's dream, and it's hard to get enough ventilation that some heat is not needed without letting rain in. My vote: a little heat, and as much ventilation as possible. Heaters that get hot enough to ignite stuff make me nervous, and I wouldn't leave one unattended. Even a light buld can start a fire if it can contact the wrong things. The bulb should be enclosed so as to prevent this. I have seen this done with a kitchen collander, for example, or with a gallon-size tin can punched full of holes...
Those solar-powered vent fans are great, but they only last a couple of years, and the batteries that come with them are worthless. I'm considering a wired-in one.
I am also thinking of making a new hatchboard that has a couple of fans mounted to it, but haven't done it yet -- I'll let you know how it turns out if I get around to it...
Oh, do you know the muffin fans?
Muffin fans are little ventilation fans used in computers. Since they're just little DC fans (with flush-mounting), many will run on 12V. They're cheap and designed to run continuously. Get 'em at an electronics supply house for a few bucks, and you can mount them in the little places that don't seem to ventilate. I saw an install in a hanging locker that the owner said completely eliminated the moisture problems he'd had and drew next to nothing. I dunno, it's an idea.
I'm also pretty dissapointed by the 'Day n Nite" solar vents. I called the manufacturer when I saw water intrusion inside the solar cell, and was treated to a snotty diatribe about their warranty policy. No replacement components were available, and I was directed to buy a whole new unit (in my case, two units) every 2-3 years!!! That comes to about $100/year for ventilation.
Well, my warranty policy is to not give my money to manufacturers that are in the replacement business.
UV Light and the control of Mold, Mildew and Boat Odors
Like all boats our boat has it's share of Mold, Mildew, and boat odors. I am interested in developing a ventilation system that can utilize UV light and possibly ozone to retard and kill these organisms without harming the inhabitants. I understand that they install UV lights in ventilation ducting in Florida to battle these conditions. Does anybody have any input on this system? Please reply to discuss.
I work with a company that builds UV light filtering devices for water systems for fish hatchery aquaculture and will persue information on UV light and the benefits of Mold and Mildew control by UV light.
Bill
UV Light
Interesting concept. We used to use UV light to sterilize our beer brewing equipment after cleaning. I seem to recall the UV light had to be contained within a box (because of harm to plastics and fabrics). I wonder if it would work in the head? No exposed polymers or fabrics to worry about. Hey, wouldn't that be cool. Just turn on a light when you leave the head, and say goodbye to mold, mildew and odors
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