Furnace efficiency is measured by AFUE, short for Annual Fuel Utilization Efficiency. It’s a simple percentage that gives consumers a basis to compare energy efficiency among similar makes and models of furnaces at a glance. AFUE isn’t the only element that impacts your efficiency and operating costs. Other factors include the airtightness of your home, the amount of insulation, and how many hours a day you typically run the furnace.
Heat exchanger, R-values, CFM and AFUE – what do all of these HVAC terms mean? Learning the terms and acronyms that heating and cooling professionals use will help you communicate better with your HVAC contractor and gain a better understanding about products and their efficiency.