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In the December 6, 2021, issue of The ACHR NEWS we take a look at how increased expenses for materials, parts, and labor have affected manufacturers’ bottom lines; California’s new non-residential acceptance testing; and the increased interest in indoor air quality and whether that interest will remain post-pandemic. We also discuss how to diagnose and solve home ventilation issues, where leaks are usually located in refrigeration systems, and effective ways to approach selling your HVAC business.

For a full index of articles included, visit the December 6, 2021, issue page.

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