You can save on your heating and cooling bills by using a programmable thermostat that turns your heating and cooling system on and off at preprogrammed intervals.
Use a programmable thermostat and set your thermostat back from 72 degrees to 64 degrees for 8 hours when you are out of the home. This can save you an additional 10 percent off your winter heating bill.
Programmable thermostats are simple, inexpensive devices that provide better savings than any other energy efficiency measure. Available in several shapes and sizes, they can be added to most modern hvac systems and can pay for themselves in as little as a month.