What does AFUE stand for?

AFUE stands for Annual Fuel Utilization Efficiency. It is a percentage that indicates how efficiently a furnace or boiler uses fuel to produce heat over the course of a year. A higher AFUE rating means a furnace is more efficient, converting more fuel into usable heat while wasting less energy. This determination is crucial for consumers looking to purchase heating equipment, as it helps them estimate energy costs and efficiency over time.

The AFUE rating is particularly important for understanding the operating costs associated with heating equipment, as it can lead to cost savings on energy bills. It also provides an indication of the environmental impact associated with fuel consumption. This metric is used primarily in the context of residential heating systems to guide best practices and inform decisions on energy-efficient home heating solutions.