chaps,

over here everyone is on electric mains pressure hot water and my leccy bill is 120 euro's a month a lot of that is hot water heating, that's just about to get worse as we have added another water heater to cope with demand now daughter has moved into the renovated finca:-(

So the addition of solar is a no brainer when I can get a unit for 800 euros.

http://www.milanuncios.com/calentado...t-78082428.htm

however my concern is the integration of the unit to the existing. Do I simply break the cold feed to the electric boiler and run that to the solar unit then back to the boiler (left off if necessary).the solar comes with an expansion device so that should be fine but how is temperature controlled?

DSC_0453.jpg existing boiler + new

DSC_0469.jpg