Guys, I have noticed that you can get programmable thermostats - what a great idea. However, do these get their power from the same wires as the existing "dumb" thermostat or do I have to run a power feed to it?
On another note I have a Potterton EP2002 central heating controller. However, I can't set different programmable times for Hot water and Central Heating - even though I have two valves in the tank space (instead of a 3 way valve -( why??)). If I get a new programmer,will I have to start fiddling with the wiring? Thanks, Steve