I have a WR1 wireless thermostat, it's fine but doesn't control the
timing. The central heating has a programmable timer, it's fine but
doesn't control the temperature. These are in different places.

I want the house to not freeze while we're on holiday, and to warm up
before we return. It seems the obvious way would be to replace the
thermostat with something programmable. Is there such a thing which is
compatible with the receiver? I don't want remote controlled internet
stuff.

Cheers
--
Clive