On Feb 20, 2:27 pm, "tim...." wrote:
"JimK" wrote in message

...

at what point does it start to make sense to be on Economy 7 leccy?

Assuming that you are talking about an existing installation, when your
night usage is more than about one half of your day time usage.

Yes, I was toying with the idea of doing just that but it seems space
heating is the only realistic way of reaching that tipping point?

Cheers
JimK