Programmable room thermostat

[RonnyRaygun]

I've just moved house and the hot water and central heating run off oil. There is a programmable timer for both water and central heating in the airing cupboard.

I would like to install a programmable room thermostat. I've installed one before on a combo boiler but how does it work where there is already a timer installed?

Would I need to have a timer that only controls the hot water, leaving the thermostat free to control the heating?

What would you guys recommend?

 

[flameport]

Would I need to have a timer that only controls the hot water, leaving the thermostat free to control the heating?

That, or just set the existing timer so that heating is permanently on.

 

[RonnyRaygun]

That occurred to me after starting this thread.

So as simple as setting the heating to permanently on and installing a thermostat on the boiler?