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The science of HVAC efficiency ratings

Do you know your IEER from your SCOP?

It's vital for both contractors and their customers to understand the nuances of the ratings used to measure the efficiency of their equipment. AHCR News reports: "Most in the industry are already familiar with many of the terms used to describe the energy efficiency of a unit — SEER, AFUE, EER, COP, etc. But other measurements are starting to be used as well, such as CEF, IEER, SCHE, and SCOP, which have been developed by AHRI, the U.S. Department of Energy (DOE), U.S. Environmental Protection Agency (EPA), and other groups. Manufacturers say these terms are useful to know when determining the amount of energy used by certain systems."

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