Is your fan missing something? You'd know right away if a piece of your next fan was missing. But now there's something that can have an even greater impact on fan performance-an AMCA-certified Fan Energy Index (FEI) rating. FEI is a fan-energy metric calculated at specific airflows and pressures. FEI ratings include a motor and drive, thus communicating the expected power consumption of complete fan systems. Because FEI can be calculated for any duty point, it helps engineers select fans for high efficiency across an entire operating range. In short, FEI helps right-size fans with optimal motors and drives, reducing energy waste and carbon emissions and extending service life. To find AMCA-certified FEI-rated fans, visit amca.org/find-FEI. For more information about FEI, visit amca.org/fei. UPDATE: FEI has replaced Fan Efficiency Grade in: ANSI/ASHRAE/IES Standard 90.1-2019 | ANSI/ASHRAE/USGBC/IES Standard 189.1-2020 International Energy Conservation Code 2021 | International Green Construction Code 2021 STAND FOR A HIGHER STANDARD © 2021 AIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL, INC. All rights reserved. amca.orghttp://www.amca.org/find-fei http://www.amca.org/fei http://www.amca.org