For a long time, I’ve wanted to replace the thermostat that controls HVAC for the top two floors of the house. My wife hated the old one, and it was clunky with no ability to control via my phone. I took advantage of a Black Friday deal for a Nest Learning Thermostat at the Home Depot. It was a pretty easy install process, which first involves removing the old thermostat and labeling the wires.
From there, all I had to do was wire up the Nest and calibrate and configure it.
After that, connecting it to my phone via the Nest App and subsequently Alexa was very straightforward.