Nest Thermostat 2nd Generation Vs 3rd. The 3rd gen nest learning thermostat, and the more recent nest thermostat, released in 2020. Compare smart thermostats to find your best option.

I would like to know, whether i could buy a 3rd generation nest thermostat and heatlink for the heating and hot water downstairs, while using the 2nd generation. Before jumping in, here’s my take on the high.