Nest Thermostat E. How does it work with underfloor heating.

16 Nov 2020
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United Kingdom
Combi Boiler
Heating type: Water Underfloor heating, Only one Zone.
Nest type: Nest Thermostat E (Images For Reference)

Just received the Nest Thermostat E and trying to replace it instead of the OLD Thermostat, but I am having some difficulties with connecting the underfloor heating as there is no CLEAR Connection or Information about such a thing in the Manual.

Manual only acquirable online for some odd reason. IKEA is easier.

I have looked online and watched videos but the people I encountered had different models with more connectivity options.

There are 2 Main Wires that show up everywhere and that connect as shown, but I have The Underfloor Heating Wire which I do not know where to insert.

Help is much Appreciated

Thank You
Last edited:
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More information on / photos of what you have now are needed here before we can advise.

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