I have one concern regarding SVT. When i update thermostat target, so it is higher than current temperature, the SVT correctly turns on the heater. However i set calculation cycle to 80 and i noticed that heater is on 40 minutes, and there is 40 minute pause event if the temperature is far from ...

Alan, your script is very smart, i will use it as a base for my script. Thank you very much.

Thank you alanlsmith. This is perfectly clear now and makes sense. Will implement it the same way in my setup and see how it works

Great thanks.

I control the TRVs so that when the boiler first switches on they are all set at 28 degrees, after that, when the room temperature sensor is above the target the TRV is instructed to 'turn down' by twice the difference between the target and the room temperature, equally this is also the case if ...