Seasonal performance rating of heat pump water heaters

G. L. Morrison*, T. Anderson, M. Behnia

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

115 Citations (Scopus)


Seasonal performance evaluation methods for water heaters are reviewed and an experimental method for rating air-source heat pump water heaters is presented. The rating method is based on measured heat pump performance during heat-up operation of particular products rather than a generic simulation model of heat pump performance. The measured performance is used in a correlation model of the heat pump unit in an annual load-cycle system performance simulation based on the TRNSYS simulation package.

Original languageEnglish
Pages (from-to)147-152
Number of pages6
JournalSolar Energy
Issue number1-3
Publication statusPublished - Jan 2004
Externally publishedYes


  • Heat pump
  • Water heating


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