The Annual Fuel Utilization Efficiency or AFUE rating is the percentage of fuel consumed that is converted to heat your home. A higher number is better. Within this model some sizes earn the U.S. government’s designation for superior energy efficiency and can help save costs on energy bills.
01 Overview
The Annual Fuel Utilization Efficiency or AFUE rating is the percentage of fuel consumed that is converted to heat your home. A higher number is better. Within this model some sizes earn the U.S. government's designation for superior energy efficiency and can help save costs on energy bills.
