No matter what kind of heating system you have in your home, you can save money and increase your comfort by properly maintaining and upgrading your equipment. But remember, an energy efficient furnace alone will not have as big of an impact on your energy bills as using the whole-house approach. By combining proper equipment maintenance and upgrades with recommended insulation, air sealing, and thermostat settings, you can save about 30 percent on your energy bill while reducing environmental emissions. Here are a few tips:
Select energy efficient products when you buy new heating equipment. Your contractor should be able to give you energy fact sheets for different types, models, and designs to help you compare energy usage.
Source: Energy.gov