As the largest chapter of ASHRAE and one of the oldest (the Illinois Chapter of ASHVE, the precursor to today’s society, dates back to 1907, the Illinois Chapter has a significant amount of documents and literature related to its activities over more than a century. One of the goals of the Historical Committee is to pull these files out of ‘cold storage’ in order to organize, document, and properly archive this information. We will be displaying various files and interesting information in this website. If you would like to participate and assist the Historical Committee, please contact the Illinois Chapter office,

Chapter History

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This web site is maintained by the Illinois Chapter of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE). It does not present official positions of the Society nor reflect Society policy. ASHRAE chapters may not act for the Society and the information presented here has not had Society review. To learn more about ASHRAE activities on an international level, contact the ASHRAE home page at