Tim Downie wrote:

Not entirely true.

My parents when they lived up in Aberdeenshire had radio controlled
switching of the storage heaters. The switching was controlled by the power
company to give them more flexibility in controlling demand (and
consequently offer cheaper electricity).

As a system it seemed to work reasonably well and it included the option to
boost the output of some heaters on reduced rated elctrcity (although not as
cheap as the storage heater rate).

Absolutely - transmitted, I believe, on the Radio 4 long wave signal.

--
Rod