What does AFUE stand for?

AFUE stands for Annual Fuel Utilization Efficiency. This term is particularly important in the context of assessing the energy efficiency of heating appliances, such as furnaces and boilers. AFUE measures the effectiveness of a heating system in converting fuel into heat over the course of a year. It is expressed as a percentage, indicating how much of the fuel consumed is converted to usable heat for the building versus how much is lost during the process.

The significance of AFUE lies in its role in helping homeowners and professionals evaluate the energy performance of heating systems. A higher AFUE rating signifies a more efficient system, which can lead to lower energy bills and reduced environmental impact due to less fuel consumption.