Can the Smart TRV set work with the Extension Kit alone, or does it need the Smart Thermostat also?
Just bought smart TRV starter kit (2 TRV's & ethernet bridge) and another 8 TRV's for an HMO property. All working great but as tenants work individual shifts there's time just one room is occupied - i'm seeking a way to have any of the TRV's fire the boiler as opposed to relying on the current original wireless stat to keep the boiler alive for any rad stat demanding heat at any time. I believe the extension kit can achieve this but will this work alone or does it have to have the smart thermostat also? (i don't need an extra stat as all rooms have smart TRV's). Thanks