Home heating and cooling is the single biggest user of residential energy. This smart thermostat from Nest is an investment that looks great on the wall and pays for itself.
The easy-to-use and subscription-free app allows you to control your system from anywhere. The built-in sensor can be used to adjust the temperature automatically if no one is home or the app's location services can be enabled to automatically pre-heat or pre-cool your home on your return.
note: This thermostat includes plenty of "smart" features for those who like to tinker but can sometimes over-complicate the heat/cool cycles. We recommend turning off the Auto-Schedule setting that tries to predict your daily routine and just let the thermostat sense when you're home or away.