ACCA Now Publishing I=B=R, Popular Hydronics Heating Guide

May 6, 2015

ACCA, the nation’s largest organization of indoor environment and energy services contracting businesses, announced it has reached an agreement with the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) to be the publisher of I=B=R Residential Hydronic Heating Guide, as well as The H-22 Heat Loss Calculation Guide,the H-22 worksheets and ¼ Scale House Plans. The I=B=R Residential Hydronic Heating Guide is recognized as the most authoritative guide available on the design and installation of residential hydronic heating systems and is available for purchase online at

“Since launching the Radiant & Hydronics Council in late 2011, ACCA has worked to create strategic partnerships with many organizations in the industry to provide our members with the best resources available,” said Paul T. Stalknecht, ACCA president & CEO. “We have had a long-term relationship with AHRI and have worked closely with them for many years. It only made sense for us to again work together to expand the market for the best hydronics products on the market.”

The I=B=R Residential Hydronic Heating Guide, the H-22 Heat Loss Calculation Guide, the H-22 worksheets and ¼ Scale House Plans join ACCA’s hundreds of other manuals and products for the HVACR industry, all of which can be found at


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ACCA is a non-profit association serving more than 60,000 professionals and 4,000 businesses in the indoor environment and energy services community. Our member firms are the nation's most professional contracting businesses, serving residential and commercial customers in every state. With roots stretching back a century, ACCA was incorporated in its present form nearly 50 years ago. Today, ACCA sets the standards for quality comfort systems, provides leading-edge education for contractors and their employees, and fights for the interests of professional contractors throughout the nation. Learn more about ACCA here.