What’s the Difference Between Programmable, Smart, and Learning Thermostats?

What’s the Difference Between Programmable, Smart, and Learning Thermostats?

People rarely spend their free time reading about thermostats. So, when its time to actually buy one, words like “programmable,” “smart,” and “learning” can be a little confusing. What do these words actually mean, and what kind of thermostat should you buy?