air source heat pumps, ashps, rating representativeness, test procedures, field studies

Better Ratings Mean Better Heat Pumps: Findings from New Field & Lab Research

A collaborative of energy efficiency organizations and HVAC manufacturer representatives, convened by NEEP, recently completed new research on the “representativeness” of energy efficiency ratings for air-source heat pumps. In other words, how well do the ratings and test procedures we use to measure product efficiency in the lab match with performance in the field. 

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