Google Nest Learning Thermostat 4th Gen Installation And Configuration Manual page 16

Key Features and Functionality
Adaptive Comfort and Adaptive Eco
The Adaptive Eco feature can help a user save energy when they are away without sacrificing their
comfort when they return home. Using the home's past heating and cooling performance and the latest
forecasted weather, Adaptive Eco can adjust the Eco temperatures to reduce heating and cooling while
still allowing the home to quickly return to a comfortable temperature when the user returns home.
Adaptive Eco will only take effect during Auto-Eco periods. Therefore, to use Adaptive Eco, a user must
first set up a Home & Away Routines in the Google Home app to set the thermostat to Eco temperatures
when they are away.
Adaptive Comfort can dynamically adjust the Comfort temperatures to account for non-temperature
conditions like indoor humidity and forecasted weather. This allows the thermostat to respond to
changing conditions in order to keep the home comfortable. The user can turn this feature on or off using
the Google Home app.
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