Can the nest run on a 230 AC circuit

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  • Answer

    The Nest Thermostat cannot be wired directly to your heating system since it is using lower voltage (12V vs. 230V) and would be irreparably damaged if connected that way. It uses a transformer to lower the voltage to a lower level.

    In the US boilers also use a lower voltage and as a result of this Nest can be connected directly to provide boiler control. In the UK and Europe we use 120-240v boilers. For these types of boilers an additional piece of hardware is provided called the Heat Link. This connects to the boiler and turns it on and of at the Thermostats (or your) request.

    Using Heat Link to control your boiler allows you to put the Thermostat where you’d like - it can be where you have an existing wired Thermostat installed or in a new place. So if you don’t have Thermostat wires in the wall or if the existing Thermostat was poorly placed, you can still install Nest in a good spot.

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  • Currently the Nest Thermostat is 24v AC only.

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