According to the Department of Energy, you can create big savings on your energy bills by resetting your thermostat when you are asleep or not at home. Consistency is key with this method, and who can remember to re-set their thermostat each day among the myriad of other details consuming our modern lives?
That’s why programmable or setback thermostats are so popular! As the name indicates, you can change the times you turn on your heating or air conditioning system based on a pre-set schedule you put in place, saving you dollars in the process.
Based on this article from the Department of Energy, “You can save as much as 10% a year on heating and cooling by simply turning your thermostat back 7°-10°F for 8 hours a day from its normal setting.” They do go on to state that “the percentage of savings from setback is greater for buildings in milder climates than for those in more severe climates,” however.
Here’s a great video from this site at the Department of Energy that shows how it works:
Also from our friends at the Department of Energy, here’s a handy guide on how to program your thermostat for fall and winter savings.
And here’s a handy ENERGY STAR® interactive programmable thermostat tool which will help you with the settings on your programmable thermostat.