I purchased these for our bathroom and wanted to remove tuya and connect to HomeAssistant.
Eurom Sani Bathroom Radiator
The unit uses a WBR3 tuya chip solely for WiFi communication. I swapped it for an ESP07 module 1:1 pin replacement, only 3v3 , GND, RX and TX required but make sure to hardwire EN to Vcc and GPIO15 to GND.
Initial tuya setup works, time set heating set and current temperature. Still fine tuning to get Room / Towel mode switch working but already happy with the result!