QUICK SUMMARY Google has added hot water controls and scheduling to its older Nest Thermostats in the Google Home app. Your Google Nest Thermostat just got a great heating upgrade in the Google Home app, just in time for the chilly autumn / winter season to kick in. Back in April, Google killed support for its old Nest Thermostats which affected 1st and 2nd Nest Thermostat owners. The former has been added into thermostat controls and are available for on/off boilers that are connected to the Nest Learning Thermostat 3rd Gen. But if you have the Nest Learning Thermostat 3rd Gen or the Nest Thermostat E, you’re sure to enjoy these features – and just in time for AW25.