Why do manufacturers certify their products?
Mostly because they recognize that energy performance is very important to their customers, and they want to provide them with accurate and reliable information. In addition, NFRC Certified Products carry the NFRC Temporary Label that provides building inspectors the ability to confirm that the product meets or exceeds local energy code requirements. NFRC certification is strictly voluntary, although to meet the criteria for becoming an ENERGY STAR® product according to the federal government, a product must be NFRC-certified.
