There are some major energy consuming appliances and fixtures in the average house that can’t be made much more efficient, at least without a large investment. These may include refrigerators, pool pumps or the condensing unit. However, one of the easiest and most reliable ways to reduce energy usage is with a programmable thermostat. Used properly, it will not run the heating or cooling when no one is in the house.
Indicated in the chart on the left, heating and cooling use almost half of the energy consumed in the house. If there is a regular schedule of when people are in the house, the thermostat can be programmed to cut off. This is most effective in the summer, when the air conditioner is used constantly. Then the system can restart slightly before anyone gets home, so it is comfortable when it needs to be. Even not running the unit for four hours a day will see significant savings.
Programmable thermostats can be easy to install and maintain, and can be reprogrammed to accommodate vacations or summer break. This way the house stays comfortable when it needs to and the power bill will go down.