By the way, I don’t know if you saw @Prof_Techno but there’s a tutorial on the forum that explains what you want to do:
Also, @Prof_Techno as I said in this thread :
There is already development done to have Zigbee2mqtt pilot-wire heating in Gladys natively, but we need a tester to test the development.
If you want to help us with testing, it will allow you to have this feature without needing Node-RED.
If you can’t help us, we’ll have to find someone else with a pilot wire but they aren’t exactly common 