Google Nest Learning Thermostat

Your thermostat controls 60% of your energy bill. So shouldn’t it help you save energy?
The Nest Thermostat does. Since 2011, we estimate that it’s saved over 39 billion kWh of energy in millions of homes worldwide.‡ Because it learns from you. It gets to know the temperature you like when you’re at home. And turns itself down when you’re away. It even learns how your home warms up or how draughty it is, so it only uses the energy it needs. That’s how the Nest Thermostat saves energy.
 
Control your hot water.
 
Now, you can control your hot water tank with the Nest Learning Thermostat. It comes with a hot water schedule — just adjust it from the Nest app. You can boost the heat so that you have extra hot water if you want it. And when you’re away from home for a few days, you don’t have to remember to turn off the hot water. The Nest Learning Thermostat will do it for you.