The Nest Learning Thermostat, which debuted in 2011, was one of the original smart thermostats. But it hasn’t seen an update in almost a decade. Today, there are dozens of cheaper connected ...

However, the new thermostat includes a separate Nest Temperature Sensor in the box ... temperature, weather or outdoor air ...

Here's what you should know about the best temperature to heat your home at, keeping cold air outside and what to set your thermostat to when you're not home. When to turn on the heat in your home?