On 13/04/12 18:14, harry wrote:
On Apr 13, 5:05 pm, "george
wrote:
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]


That's far too much money though it's a good idea. I posted about a
similar thing myself a week ago-ish.
How long would it take you to recover? Probably never would.
As per above,wait for the price to come down.
Meantime look at the weather forecast& just use an ordinary plug type
timer.
The £190 one cant tell if you're exporting or importing electricity,
so there's no great advantage of this one over the £31 one,
neither can tell if washing machines, kettles, heaters etc are on.

More expensive is a 1kw immersion element.

[g]