If you’ve ever wanted to turn on your window or portable air conditioner before you got home—or ... These handy thermostats work with any AC unit, mini-split, or in-wall heat pump that uses ...

The battery-powered Google Nest Learning Thermostat is said to be compatible with 95% of home heating and air-conditioning systems ... of money on electricity or gas -- enough to pay for the ...

Simple energy guidelines can get anyone started with a smart thermostat: In the cold months, set it to at most 68 degrees ...

The ease of manually controlling the thermostat's temperature set-point, heating/cooling schedule, home/away and vacation features - when they are available - through the thermostat and mobile app.