solar dishes

hairybadger

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I was the other side of the mountains today in the Aosta valley, and I saw several largish silvered roof-mounted dishes. Naturally on getting home I've looked up what they are - they're used for heating water (solar dish, although using the French term "parabole solaire" for the search is a bit more fruitful). It's the first time I've seen dishes like that - was quite interesting. Now I'm trying to work out where I could install some .... :)
 

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lol you must live in a remote location ?, we even have them in the uk when a water wheel would do a better job :0 :-).
 

hairybadger

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martin-f said:
lol you must live in a remote location ?, we even have them in the uk when a water wheel would do a better job :0 :-).
:) Not that remote, although the location where I saw them (Cogne, Provincia di Aosta) is up in the mountains. Roof-top water heaters composed of bars are not that uncommon, but it's the first time I've seen the dishes....
 

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hairybadger said:
:) Not that remote, although the location where I saw them is up in the mountains. Roof-top water heaters composed of bars are not that uncommon, but it's the first time I've seen the dishes....
sorry i thought that was what you were referring to, my mistake sorry,
 

Channel Hopper

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Since a dish relies on focusing of the sun onto the pipe, they require very careful setting up if they are not steerable (and all the effort required to motorise with flexipipes). A black bar heater, whilst being less efficient is more reliable in the long run and some have been working for 35 years without so much as a new gasket.

Much the same goes for solar panels for electricity, the suppliers will always prefer to offer a static mass-produced panel system if you are thinking of bolting some onto a polarmount
 

hairybadger

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Channel Hopper said:
the effort required to motorise with flexipipes). A black bar heater, whilst being less efficient is more reliable in the long run and some have been working for 35 years without so much as a new gasket.
Point taken, however the dishes look cool and thus appeal to my inner child :)
 

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Channel Hopper

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