You can save as much as 10% on your energy bills by simply turning your thermostat back 10% to15% for eight hours per day. This can be done easily by turning the thermostat back while your sleeping and while the home is unoccupied. This can be done automatically by using a Programmable Thermostat. With one of these devices you can adjust the times you turn on the heating or air conditioning according to a pre-set schedule that you set. For instance in winter it can be set to lower the temperature after bedtime and then raise it up to a more comfortable level before you get up . In summer you can set it to do the opposite.
Programmable Thermostats, sometimes called set-back or smart thermostats, can be set to multi daily settings per day that can be manually overridden without affecting the rest of the daily settings. As a result your equipment will run less when it is not needed and you will save energy, money, and be greener.