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Manage your electric heating with a connected Google Nest smart thermostat

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Connected Google NEST smart thermostat

The connected Google NEST Learning smart thermostats are becoming increasingly popular on the European market. Indeed, the “smart” thermostat incorporates self-learning features coupled to a predictive algorithm capable of anticipating the heating needs of your house based on weather, temperature, humidity, heating rise curve of your housing as a result of its inertia, as well as your lifestyle habits.

This thermostat therefore aims for ease of use and energy savings. Thanks to the Nest application, you can control the thermostat remotely, as it is connected to WIFI of your housing. It also allows you to receive monthly summaries of your energy consumption.

Connected Google NEST smart thermostat

Connected Google NEST smart thermostat

 

Very long incompatible with electric heaters, the solution has evolved. These thermostats are therefore no longer reserved only for boilers (controlled by dry contact).

Google NEST and Heatlink

The connected Google NEST Learning smart thermostat is in principle delivered with a complementary box called HeatLink (3 versions).

Connected Google NEST smart thermostat

Connected Google NEST smart thermostat

 

Heat Link is the device that controls the switching on and off of the heating system. Nest thermostats that are commercialised in the European Union can only work with a Heat Link. The Heat Link is connected by wire to the boiler or electric heater, and then it communicates (wirelessly or via the existing wiring of an old thermostat) with Nest thermostat which sends the orders of switching on, modulation (depending on the case) or switching off of the heating.

Connection of a Heatlink box to an electric heater

Connection principle of the Google NEST smart thermostat– Heatlink box

Connection principle of the Google NEST smart thermostat– Heatlink box

 

PS : the cable indicated on the diagram between Heatlink and google NEST is used only if it’s already existing in the dwelling. Otherwise, the Google Nest thermostat is plugged in the nearest socket and it communicates by radio with the Heatlink box.

Following the same principle as for any electric heating, one NEST thermostat is required per living area (kitchen, living room, bedroom, etc.) and one receiver (or in this case one Heatlink box) per heater.

Google recommends calling a professional for the installation of 2nd and 3rd generation Google Nest.

heatlink google nest thermostat

Heatlink box wiring – Google source

 

 

heatlink google nest thermostat

Standard diagram not applicable in the case of electric heaters with a power exceeding 690W

 

heatlink google nest thermostat

Heatlink box wiring – Google source

 

IMPORTANT:

An important point should not be overlooked, hence the installation by a professional. As indicated in the device specifications, the built-in contactor relay cannot switch intensities greater than 3A , i.e. less than 700W (Pw=U.I=230 Volts x 3A = 690W). Therefore, the Google NEST cannot natively control electric heating with a power greater than 700W, which greatly reduces the possibilities.

Fortunately, a bypass solution exists by installing a 25A contactor and a 16A circuit breaker per electric heater via a very specific connection diagram. It goes without saying that this operation must be performed by a professional. The additional material required (contactors) can therefore quickly increase the invoice. Wiring between the electrical switchboard that accommodates the contactors/circuit breakers and the heatlink of each heater is to be provided.

heatlink google nest thermostat

Principle diagram with 25A contactor and 3A circuit breaker – any electrical installation shall be performed by an electrician

 

Finally, on the NEST thermostat you have to choose the “Heaters” configuration. Note: Google does not provide any guarantee on potential energy savings, stating furthermore “We do not provide any guarantee regarding energy savings, which depend on your consumption, the weather and other factors. Find out more: nest.com/eu/savings.”

Learn more about heaters and electric heating

Expert File: Centralise the control of your heating connected to TYDOM 1.0

Expert File: Which smart thermostat to choose to save energy?

Expert File:What are the characteristics of an ideal heater?

Expert File: How to easily evaluate the number of electric heaters and the heat output required to your needs?

How to choose an infrared heater: The best infrared heaters

Expert File: Why and how to increase the apparent temperature of a heated room?

Expert File: How to effectively heat complex spaces or spaces very difficult to insulate?

Expert File: How to effectively heat a veranda?

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CONTROL YOUR ELECTRIC HEATING WITH A CONNECTED GOOGLE NEST THERMOSTAT
Title
CONTROL YOUR ELECTRIC HEATING WITH A CONNECTED GOOGLE NEST THERMOSTAT
Description
Manage your electric heating with a connected Google Nest smart thermostat Connected Google NEST smart thermostat Google NEST and Heatlink Connection of a Heatlink box to an electric heater Learn more about heaters and electric heating
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