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Tado Extension Kit to replace Nest V3 (Heat link) ?


I currently have a Nest V3 thermostat with the Heatlink connected to a combi boiler in the UK. I'm thinking about replacing it with a Tado thermostat and Extension kit after using the radiator valves.

Has anyone done this, and if so, was it a straight swap (take out heatlink, install extension kit with simple wiring swap) ?

I've asked customer services for any information on the installation (i.e. wiring diagram) but they've told me they're not able to give me anything as it's all available after you've bought the kit. Seems a bit odd that I have to buy something to find out whether it's compatible.




  • MichaelMichael | Moderator

    Hello Andrew,

    It is compatible, but installation instructions are only available for customers who bought it. You basically have to remove the heatlink and wire the Extension Kit directly to the boiler, BUT please follow the tado° online installation instructions when you want to install it yourself.



  • algae105algae105
    edited October 2019
    Thanks for your reply.

    I have to say, it still seems odd that you’re not able to share installation instructions to allow someone to make an informed purchase. To be honest, it makes me think adopting the Tado system will be a frustrating journey.
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