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The Institute of Heating and Air Conditioning Industries (IHACI) is a nonprofit trade association dedicated to the HVAC/R/SM industry since 1948. Comprised of contractors, manufacturers, distributors, utilities, and related businesses, IHACI focuses on education, professional development, and industry advancement. The organization provides comprehensive training, networking opportunities and events, and resources to support professionals in the heating, ventilation, air conditioning, refrigeration, and sheet metal industries.

IHACI is committed to:

1. Cultivating professionalism in the HVAC/R/SM industry
2. Offering educational programs and resources for certification courses
3. Providing legislative advocacy and industry updates
4. Supporting continuous learning and skill development

IHACI remains dedicated to helping industry professionals stay competitive, adapt to technological changes, and maintain high standards of service and expertise.

Indoor Comfort News (ICN) covers the residential, commercial, and industrial HVAC markets and is unrivaled in market influence and editorial coverage. Published monthly, it features timely reports from top industry analysts and news coverage on the Western and national HVAC/R/SM and Performance Contracting scene.

As the longest-running HVAC/R/SM publication in the West, Indoor Comfort News boasts unparalleled market influence and editorial depth. Owned by the Institute of Heating and Air Conditioning Industries, Inc. (IHACI), ICN delivers consistent, reliable information that HVAC professionals trust and value.

IHACI Members receive access to education and training, peer group Zoom calls, Indoor Comfort News magazine, active Membership Directory, legislative advocacy, Trade Show details, monthly NewsBriefs, industry events, and entertainment packages.

IHACI’s Annual HVAC/R/SM Performance Contracting Product and Equipment Trade Show is held in early November at the Pasadena Convention Center in Pasadena, California.

IHACI offers comprehensive technical training courses and collaborates closely with California Utilities to host both webinar and in-person training classes at no cost to HVAC industry professionals. These training programs are designed to empower California's HVAC workforce, ensuring they remain code compliant, adhere to Title 24 energy regulations, and follow industry best practices.

Registration for all education and training classes must be completed directly on the following utility companies’ websites: Southern California Gas Company, Southern California Edison, Pacific Gas and Electric. Please use the Registration links under the Education and Training tab to register. IHACI does not host any classes or training at the IHACI office.