2 hot water circuits

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In my house at the moment I have a hot water circuit on a tado extension box, radiators upstairs on a tado wireless thermostat, underfloor heating on separate thermostats, and the bathroom rads on a fourth circuit. The bathroom rads are controlled like hot water - there is no thermostat, just a timer that turns them on once a day. I’d quite like to move that circuit to tado - my initial thought was another extension kit to wire it as a second hot water circuit but it seems like that is not possible. Is there an alternative?

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  • johnnyp78
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    Presumably all the timer is doing is activating a zone valve so there’s no reason why you couldn’t remove it and wire in a smart thermostat instead. Of course I may be way off the mark.
  • JamesAF
    JamesAF
    edited October 2023
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    And just set the temperature to 25 degrees so it always fires?
  • johnnyp78
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    Probably better to add a wireless temp sensor as well in or near the bathroom or trvs so you can set the rads to come on at the target temp, unless you want them permanently on.