Works with Alexa for voice control (Alexa device sold separately). Nest saves energy by automatically turning itself down when you're away 2nd generation design - nest is now 20-percent thinner and works in 95-percent of homes with low Voltage systems Auto-Away: Nest saves energy by automatically turning itself down when you're away Auto-Away: Nest saves energy by automatically turning itself down when you're away Auto-schedule: Remembers the temperatures you like and programs itself. Easy install - most homeowners install nest themselves in 30 minutes or less. After that, it's just a matter of changing the temperature 2nd generation design: Now 20-percent thinner and works in 95-percent of homes with low Voltage systems Remote control: Connect Nest to Wi-Fi to control it from your smartphone, laptop or tablet Works with 95% of 24V heating and cooling systems, including gas, electric, forced air, heat pump, radiant, oil, hot water, solar and geothermal. Heating: 1,2, and 3 stages (W1, W2, W3) Cooling: 1 and 2 stages (Y1, Y2) Heat pump: with auxiliary and emergency heat (O/B, AUX, E) Humidifier or dehumidifier (HUM, DEHUM) Fan (G) Power (C, RH, RC) Works with Alexa The 2nd Generation Nest Learning Thermostat has a new, slimmer design, is enclosed by a solid stainless steel ring, and works with 95% of low voltage systems. The Nest Learning Thermostat learns what temperatures you like, turns itself down when you're away and can be controlled from anywhere over Wi-Fi. By programming itself, the Nest thermostat can save up to 20% on your heating and cooling bill. You just have to teach it well.
I'm an HVAC contractor who's installed and troubleshooted this product in customer's homes for the past couple years and experienced the good, the bad, and the ugly. Let's start with the good.Pros:-It looks great. Personally I don't really care what my thermostat looks like but I know that is very important to many people and the Nest is unmatched in this area.-When it works, it is hands down the easiest thermostat to install. The ability to sense wires and automatically confi..