Google Nest - one heating device and two thermostats.

[Anonymous]

Hi,

I’m wondering if it is possible to have two nest thermostats that control one boiler/heating device. So if any of two thermostats gives signal for heat, the boiler turns on. Such thing is possible with tado:

”

Smart Thermostats control some rooms with water-based underfloor heating and a tado° Wireless Receiver controls the boiler

The Wireless Receiver will turn on the boiler when any of the tado° controlled rooms calls for heat.

The rooms not controlled by tado° only receive heat when the Wireless Receiver turns the boiler on.”

Does anyone has any information if the same is possible with any of the google nestes devices? 

many thanks!

[zoeuvre]

Hi Napio6, 

Thanks for posting here in the Community forum and for showing interest in our Nest Thermostats. Yes, you can use two Nest Thermostats to manage a single boiler or heater. Nest Thermostats can be set up to handle various zones at once. Each thermostat controls temperature in different parts of your home and both thermostats tell the boiler to start when needed. To manage your Nest Thermostat, put one in every area you want to control. These thermostats talk without cables to the heater. They send signs to start or stop it based on temperature choices. The thermostats can work alone or together, based on your likes and the choices in the Nest app. It's important to remember that how you set up and change the options might be different based on the type of Nest Thermostat you have, and also if it works well with your boiler system.

Let us know if that helps.

Best,

Zoe

[Anonymous]

Million thanks for replying. So for sure, if I have one heating zone and two thermostats in two separate rooms it will work as I said, if any of nest give signal to heat, the boiler will turn on. The boiler will turn off when set temperature on both thermostats will be reached. Right?

[zoeuvre]

Hi there,

If you have one heating zone and two thermostats in different rooms, both connected to control the same boiler, the actions you talked about are not what Nest Thermostats usually do when set up in the normal way. In a normal situation with many thermostats controlling one heating area, the thermostats would work separately from each other. Each thermostat would handle its own heating levels and changes, without considering what the other thermostat is doing.

If both thermostats want heat and the target temperature isn't met, the boiler will switch on to warm up the zone managed by that thermostat. When the thermostat gets to the right heat level, it will tell the boiler to switch off. The second room's thermostat would work in the same way as the first one. It would control the heat in its area all by itself. 

Thanks,

Zoe