Originally Posted by
RobM
You have to think about it in reverse... you don't heat individual rooms, rather, you don't heat all the other rooms.
I have Tado, I'd recommend it to everyone and I'm convinced it has paid for itself by now. The TRV's allow you to isolate specific radiatiors so when the heating comes on, they're bypassed. If you do this in every room, when you want to heat just one room all the other rooms are blocked off and the heat only benefits the room you want. For example, overnight I can maintain a different temperature in my daughters room without heating the rest of the house as well. It's much more efficient and therefore cheaper.