How do Thermostatic Radiator Valves work?

[@xxcxpl]

Good old TRVs ... and 2004 Energy Efficiency Regulations Requirements 🙃 Blessing when they work- blessed the fortune I've made when they don't

[@Hakim-sz1rl]

Hi can you please tell me! A thermostatic radiator valve opens and closes as a result of the temperature of the A.stored hot water B. water in the heating system C. room it is installed in D. boiler thermostat

[@altecniclimited947]

Hi - thanks for the question. The thermostat senses the room temperature and adjusts the hot water flow accordingly. Hope this helps!