Immersion Water Heater Solar PV Relay Switch
to use electric immersion heater when the sun shines
and save on FIT electricity bills, is this a good idea?
and can anyone spot a difference between
£190 http://www.chrisrudge.co.uk/immersion.htm
and £31 http://www.reuk.co.uk/Water-Heating-...s-Solar-PV.htm
?

[george]