Absolute rubbish. Hot all day then come 7pm cold so you end up using ther "boost" button (some have this to override the Economy 7 circuit) then end up costing a fortune.
as you pay normal rate.
Also, you have to closely watch the weather forecasts, as once charged up, it the next day is warm/hot, theres no way to turn them off.
as you pay normal rate.
Also, you have to closely watch the weather forecasts, as once charged up, it the next day is warm/hot, theres no way to turn them off.