Thanks to the majority off people for their replys.
My supply is the old type off-peak which, 'ColJack', doesn't switch all appliances over to the cheaper tariff as you suggested.
There are two meters in the meter box along with a timer which switches the off-peak on.
I have three...
I have an off-peak power supply that gives 3 hours in afternoon (12.30 to 15.30) and 7 hours at night.
When I rewired my house I fitted extra sockets for off-peak supply next to washing machine and dishwasher which works fine when I remember to change the plug over.
What I would like to...