There are no hard-and-fast rules - - your set-backs largely depend on your own comfort, your home's insulation, the type of heating and cooling system you have, and the climate. On average, for every degree you set back your thermostat, you can save 2% on your energy bill. Through proper use of a programmable thermostat (using the 4 pre-programmed settings) you can save about $180* every year in energy costs for a typical, single-family home.
Learn more at energystar.gov/pts. Visit our Programmable Thermostat Savings Calculator to see how much you can save. *The $180 savings assumes an 8-hour daytime setback and a 10 hour nighttime setback of 8 degrees F in winter and 4 degrees F in summer.