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From: Mike Brasler (no email)
Date: Tue Nov 01 2005 - 05:50:58 EST
Good Post Arild, FWIW I hope some of these tips help.
We have spent 3 winters in the Med. We have not had the temeratures you
Canadians get, but it got pretty cold, snow on the deck etc. We did three
things that made a difference they were:
1. We created double glazing on our opening hull ports.
They are quite large and made from 1/2" Lexan, this allowed a huge amount of
condensation and loss of energy. We noticed that the plane of the sealing
surface of the rubber gasket and frame, was about 1/2" away from the outer
surface of the Lexan. All we did was open the windowsand stretch a polythene
(ziplock bag) sheet and shut the window on it, creating an air space. It was
most effective.
2. We insulated our horizontal hatches. They are also quite large, and it
rained off them from internal condensation. We got hold of double skin
bubble wrap, its the heavy duty stuff, two flat layers, with bubbles
between. We cut it to fit perfectly behind all the knobs and struts of the
hatch frame. It was also very effective.
3. We bought two oil filled electric radiator type heaters, they are 13" x
13" x 4" and ONLY 700 watt, and therefore could run them on shorepower 24/7.
The rest of the boat is well insulated with 2" of polyurethane foam sprayed
into the hull everywhere else thats above waterline. The temperature never
dropped below 19 deg C, inside and it went to -3 deg C regularly outside.
4. Our final and most effective warming strategy is, this year were going to
the Caribbean!
Regards
Laura, Mike and Liz
http://www.seakin.com/gilana/default.htm
>cost effective method is to heat slightly warmer seawater to the same
>comfort
>level and circulate that in radiators. That is one of the biggest
>differences
>between hydronic heating systems and forced air heating systems.
>
>Arild
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