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Extension box in existing setup

I have my thermostat wired to my heating system, but now want to change that to wireless via an extension box. Do I need to remove the thermostat from my setup and do a new thermostat installation and then choose the extension box connection?

After installing the extension box I assume the NO and NC switches will work on weet he thermostat?


  • No need to remove the thermostat. I did exactly what you're proposing - I already had the thermostat in my living room along with two Tado radiator TRVs, and then later added the extension kit.

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