In short, in the HVAC industry, seasonal energy efficiency ratio (SEER) means little to nothing to a homeowner. The unfortunate truth about HVAC equipment and consumers is they never think about it unless something goes wrong or they don’t have the comfort levels they expect.
Just to review, the overall transition that heralded an increase in minimum efficiency was highlighted by several changes in 2023. For example, SEER2, EER2, HSPF2. The move to SEER2 was due to the U.S. Department of Energy (DOE) being obligated to ensure test labs represent an average use cycle. Other changes included: