Device request: Magnum Heating MRC wifi Thermostat

A manual operated thermostat is most reliable.
It should work fine when:
-your wifi is up
-internet connection is up
-Tuya’s servers are online

What kind of data does your thermostat send when you check the devices’ debug page? The same data should be sent through the text events.
This is what a PIR sends f.i.:

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Did you try b.t.w. to add your thermostat as a Heater device? Just a thought, worth a shot:

Screenshot from 2022-09-26 18-33-10

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The ‘mode’ events + data don’t seem to be supported by the API: