@Wayne-TP That’s actually not unusual at all. In Germany, it’s standard practice to turn off the heating when a window is open – you ventilate briefly and then close it again. The real issue here is...

@Wayne-TP Thank you for your reply, that would help if I were turning the system off manually. However, I’m using an automation with a window sensor, and two of the valves don’t close when they’re...

I’m having an issue with my TP-Link Kasa KE100 radiator thermostats. They don’t fully close the valve – there is always a slight flow of hot water, even when the thermostat is set to off. The...