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Participating countries

Austria, Finland, France, Germany, Japan, The Netherlands, South Korea, Sweden, Switzerland, US

A Common Method for Testing and Rating of Residential HP and AC Annual/Seasonal Performance

To achieve an excellent working heat pump system, the right type of heat pump must be chosen and installed with a matching heat distribution system. For this reason, it is important to have reliable information on both the heat pump itself, and how it is influenced by the surrounding system.


The main objectives of the Annex are:

  • Establish common calculation methods for SPF using a generalised and transparent approach. The focus is on a fair comparison between different heat pump types, but also for comparison between different competing technologies, such as pellet boilers and gas boilers
  • Establish comprehensive test methods based on further development of existing test standards will be evaluated. The test standards should include test conditions needed for the future SPF calculations.