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 Norman Boats
 Well My Norman has ...............?
 solar vents
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john-m

130 Posts

Posted - 13 Sep 2011 :  10:00:37  Show Profile Send john-m a Private Message  Reply with Quote
Hello all wondering wether solar vents will keep my boat damp free or wether to bring my boat home and put in the barn, so will they make all the differance?

cheers john

Deano

United Kingdom
1843 Posts

Posted - 13 Sep 2011 :  16:30:10  Show Profile  Visit Deano's Homepage Send Deano a Private Message  Reply with Quote
I kept my boat in a barn over winter. Went to see it once and the inside of the canopy was dripping with condensation!!!!!

Solar vents are OK, but have a reputation of short life spans. Preventing condensation is best done in two ways.

1, Ventilate the boat as best you can, windows and doors open, get a good draught blowing through the boat. (Security may be an issue for some) A pair of solar vents alone are not going to push that much volume, especially if there are no other large open ventilation areas. Ventilation needs to be high and low level.

2, Seal the whole boat up tight and put a dehumidifier on board. Only any good if you have shore power.


Dean - Boating on the Great Ouse.
Freeman 30 "Silver Gem"
See the photos http://www.flickr.com/photos/54758027@N00/

Edited by - Deano on 13 Sep 2011 16:31:34
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john-m

130 Posts

Posted - 13 Sep 2011 :  19:36:15  Show Profile Send john-m a Private Message  Reply with Quote
cheers dean ive never had any trouble with damp when the boat has been in the shed, did wonder about life span of the solar vent if they are anything like the solar lamps you can get.

cheers john
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df

United Kingdom
5994 Posts

Posted - 13 Sep 2011 :  19:43:56  Show Profile  Visit df's Homepage Send df a Private Message  Reply with Quote
Mine seem to work ok, don't get much damp over winter, still get a fair bit of condensation overnight with two onboard though.
I have two solar vents and two regular vents on the roof and a door vent.




NBAS--The communal colostomy bag of the boating community.
Visit leomagill.co.uk
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raymo

United Kingdom
322 Posts

Posted - 13 Sep 2011 :  22:45:04  Show Profile Send raymo a Private Message  Reply with Quote
have fitted these to our previous and present boat,each time they have worked very well at alleiviating condensation,they are an expell air device, so to work they need good venting of air to be drawn into the boat.of course any boat with a safety cert should have this!
manufacturers claim 600 cu ft of air moved per hour, if this is true then their value is clear.

raymo.

Edited by - raymo on 13 Sep 2011 22:46:43
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mumsie53

United Kingdom
68 Posts

Posted - 13 Sep 2011 :  22:56:26  Show Profile Send mumsie53 a Private Message  Reply with Quote
what about these? we had one in our caravan and are thinking of one for the boat http://www.ktduk.com/product/low_profile_van_ventilator_rotary_roof_vent/

Pam

"growing old is compulsory, growing up however, is purely optional"
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raymo

United Kingdom
322 Posts

Posted - 13 Sep 2011 :  23:01:21  Show Profile Send raymo a Private Message  Reply with Quote
would say not,the text says that they work when the vehicle is "in motion" world of difference between 50mph on the road or 4mph on the water, also solar work when stationary.

raymo.
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Buccaneer

252 Posts

Posted - 14 Sep 2011 :  09:46:55  Show Profile Send Buccaneer a Private Message  Reply with Quote
I have always wondered why I have never seen one of these on a boat and why not on a canal boat.
I saw one on a van last week the van was parked and the the vent was whizzing around at speed,they need no power no sunlight only wind.
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Deano

United Kingdom
1843 Posts

Posted - 14 Sep 2011 :  09:52:54  Show Profile  Visit Deano's Homepage Send Deano a Private Message  Reply with Quote
quote:
Originally posted by Buccaneer
they need no power no sunlight only wind.


And there is plenty of wind on my boat!!!


Dean - Boating on the Great Ouse.
Freeman 30 "Silver Gem"
See the photos http://www.flickr.com/photos/54758027@N00/
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