Not sure about the motorised valve, it's just a standard looking metal one! That was replaced just over a year ago. Thermostat is a basic Honeywell Home DTS92E1020 Wireless Digital Room Thermostat (DTS92E).
We had a recent issue with our heating system after calling an emergency plumber to fix a leak, but that's another story. A reputable plumber came and fixed the issues and the heating worked, but now there seems to be a new issue. The heating comes on at the time it's set to, and gets the house...