Lurch wrote:

The Tempus 7 would be the 2 channel clock you would want instead if
you're going to do it that way.

Indeed. I've come to the conclusion that it's worth paying for the top
end controllers as the premium is'nt great. Tempus 7 even has a holiday
mode - tell it you'll be back in a fortnight and it will have the
house nice and warm for your return.