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Doorway air curtains were approved in June 2019 as alternatives to vestibules on most commercial building entries in the upcoming ASHRAE Standard 90.1-2019 “Energy Standard for Buildings Except Low Rise Residential Buildings.”
The definitions are the result of more than a year of discussions and were established to clarify the meaning of basic terminology used in the HVACR industry.
The standard establishes minimum whole-building energy performance requirements (design, construction, and verification) for energy-efficient residential buildings.
City officials in Little Rock, Arkansas, are looking to re-establish HVAC and ductwork testing standards for residences, according to an article from the Arkansas Democrat-Gazette’s website.