Powered By Chamber Nation
|
A natural gas furnace converts gas to heat. Gas furnaces are the most popular choice for the majority of modern homes with central heating and air conditioning. Keep in mind, you can only use a gas furnace if you have a gas line hooked up to your home. When comparing heating systems, check the AFUE (Annual Fuel Utilization Efficiency). Furnaces usually range from 80% to 97.3% AFUE. The AFUE shows how much of the fuel you pay for is actually turned into usable heat. The higher the AFUE, the less fuel you need to keep warm.