Google Nest 3rd Gen Smart Learning Heating & Hot Water Thermostat Black T3029EX

The Nest thermostat saves you energy like no other. Since 2011, Google evaluate that it’s saved over 39 billion kWh of energy in millions of residences worldwide because it learns from you. It gets to feel the temperature that you like when you're at home and adjusts itself when you're away. It even learns how your home warms up or how draughty it is, so it only uses the gas or electricity it needs. That’s how the Nest helps you save. Read Less