Today’s smart thermostats are a critical component of a home’s HVAC system. However, thermostats can malfunction. When an air conditioner or furnace does not work properly, the problem may actually be with the thermostat.
Programmable thermostats are a great way to save money (and energy). But you won’t automatically save energy or money simply because you have one installed. You've got to understand how they work, and program them to maximize your savings.