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FEI: How Adoption of IECC 2021 and ASHRAE 90.1 2019 Impacts the Selection of Efficient Fans

June 28, 2024

The FEI (Fan Energy Index) Metric has been implemented into IECC-2021 and ASHRAE-90.1 2019 which was adopted by the state of Massachusetts in July of 2023. FEI ...