My current system does not have a room thermostat, and relies totally on radiator thermostats. I believe this may be wasteful as, even if all rad stats shut the respective radiators off, the hot water is still circulating around the system with associated losses. So I want to fit a room thermostat in our lounge. Is it as simple as buying the thermostat and connecting it to a suitable set of terminals in the central heating controller?
If so, my existing controller does not have any terminals for a thermostat, only terminals for the hot water and the heating. I presume there are simply dry contcts to the respective pumps, or something of the kind.
In order to connect a thermostat, do I simply need to get a new controller that has terminals for connecting a thermostat? Or is thermostat connection not as simple as that?