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Solar convector

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Posted by simon lupton on November 7, 2004, 2:10 pm
 
Hi everyone,
I am new to this group. My question is, is it possible to make a convector
say from a household radiator to stop my garden water butt freezing over
winter?

--

Best regards

Simon

Still working 9 - 5?
If you don't like your job, ask me about mine....
http://www.trythis.org.uk
Tel: 0113 2989133
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Posted by gareth phillips on November 7, 2004, 8:34 pm
 
It is possible to make solar panels using old radiators, I dont know what
the efficiency would be like. I think the water butt would loose so much
through radiation that the butt / radiator would be frozen solid during cold
spells. How about trying to site the butt where it gets the sun, paint it
black and insulate the areas that face northish? My water butt is the
opposite side of a low window to the downpipe - I connected it to the rain
diverter using 2m of 20mm overflow pipe and it works a treat.

Gareth.



Posted by simon lupton on November 8, 2004, 1:59 pm
 Hi Gareth,

Thank you for your suggestion. I have the water butts on the opposite side
to the bungalow which shields the sun all day. The original idea was to try
a natural convection system which could be "to it" so to speak. I have
however thought of making insulation jackets for the butts as I use the
water to flush the toilet with. My water bill reduced by 6.00 per month
because of it!!
--

Best regards

Simon & Caroline

Still working 9 - 5?
If you don't like your job, ask me about mine....
http://www.trythis.org.uk
Tel: 0113 2989133
-տ-
     -






convector


Posted by Terry on November 10, 2004, 8:13 pm
 I carried out an experiment earlier this year to determine the efficiency of
a home made solar panel I had put together using a standard water filled
radiator mounted in a fibre glass housing with a twin walled polycarbonate
front screen. The solar panel was linked to a plastic 40 gallon water butt
with a pump circulating the water.
By measuring the temperature rise over time I measured my heat gain at 400
watts/m2. I live in the UK and can expect 1000 watts/m2 on a good day so I
estimate my crude set up was about 40% efficient.



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