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Old 06-26-2009, 09:46 AM   #1
Refurbished 89 Excella
DKDarrow's Avatar
1988 29' Excella
Sugar Valley , Georgia
Join Date: Feb 2005
Posts: 246
Summer Ventilation Decisions

Here in Georgia of course, it is totally humid. To fight mildew I run a fantatic fan in one end or the other with the other fan just open. I do this for 2 reasons. One to keep a flow of air to fight mildew and the other reason to burn a few excess watts off of the battery inverter so the batteries dont boil out.

The question is. What do most people do in the summer when the unit is parked for a couple of months at a time to fight mildew? I do dread the dust and stuff that MUST be getting in with the vents or windows open; because the exterior becomes coated with dust and pollen. On the other hand, in the past I have kept it closed up and had the beginnings of mildew on drapes and walls..........

Dennis & Susan
D&D Farms, Sugar Valley, Ga
Registered Boer goats
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Old 06-26-2009, 02:39 PM   #2
Rivet Master
2005 19' Safari
Join Date: Aug 2004
Posts: 2,453
Check out the marine catalogs. They sell dessicant for boats that comes in a pail, that you just open, and it sucks the humidity out of the air. That way, you can leave the windows closed. Also, electric dehumidifiers are available that remove moisture too.
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Old 06-26-2009, 03:57 PM   #3
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1972 Argosy 24
1989 34.5' Airstream 345
Heart of Dixie , Alabama
Join Date: Sep 2006
Posts: 1,659
Images: 834
Cave Dwellers

On my boats, I keep something open, vent, window, door, anything is better than airtight.
Condensation is much worse than rain. (I consider it murder to a boat)
Rain only gets the floor wet, condensation is top to bottom, inside out.
I only close it up right before launching.

I visit a friend in Mississippi, they welcome me to stay in their Aavion, it is under a roof and sealed up.
I take one step inside, and get out as quick as possible.
Such a moldy, unhealthy smell.

Much safer to breath and clean pollen than mold.
Your opinion is valued, please not your opinion of someones else's opinion.
Click To See Me Wet
1989 Airstream 345 Liberator...
1972 Argosy 24'...
1954 Feathercraft Vagabond
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Old 06-28-2009, 02:32 AM   #4
Rivet Master
2005 19' Safari
Join Date: Aug 2004
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Or, you could move to Arizona...
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Old 06-28-2009, 02:52 AM   #5
Rivet Master
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1978 28' Ambassador
Morada , California
Join Date: Jan 2006
Posts: 1,584
We have two of those solar powered round vents on our boat that run a small fan all day long - this really helps to expel moisture when it rains...but we don't have that high humidity to deal with out here...

We have three Fantastic Fans on our AS...the rear one has the thermostat, so I keep it adjusted to turn on around 80 degrees...we keep the windows locked for security, but leave the forward fan/vent open to allow air to enter and circulate toward the rear vent, when in storage...

During our mild winters out here, I leave a 100 watt light bulb burning 24/7, placed mid trailer, on the's just enough to help keep any winter moisture at bay, with the vents closed...
Ray & Pat; Morada, CA
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