A programmable thermostat can be a great tool to maximize energy savings and is recommended by your electric company. You can program this type of thermostat with different temperature settings for the weekends, for when you are away at work, for when you go to bed, and so on. It is not a necessary item to have, but it’s a beneficial tool to help you save on energy costs. You can also look into the advantages of having a NEST thermostat.