From pv magazine global
Rheem’s new air-source heat pump has passed the U.S. Department of Energy’s Cold Climate Heat Pump Challenge. The US-based heating specialist released the Endeavor Prestige series in March. It reportedly has a heating performance factor (HSPF2) of up to 8.5 and a coefficient of performance (COP) of between 1.5 and 2.0 at 17.6 F.
“We were not surprised that our team of dedicated, innovative engineers at Rheem developed a residential heat pump that was able to provide 77% of nominal heating capacity at −26 C ambient temperature and provided uninterrupted heating operation at −30.5 C ambient temperature surpassing expectations and delivering top quality performance,” said Jeff Goss, director of product management for Rheem.
The new cold climate heat pump reportedly delivered a 5% higher COP during heating under 32 F ambient temperatures than the challenge specification. Rheem said the unit also performed at a 9% higher HSPF2 than the challenge specification.
U.S.-based Carrier and Johnson Controls, as well as Ireland-based Trane Technologies, have also developed prototypes for the field-testing phase of the Cold Climate Heat Pump Challenge. Lennox was the first manufacturer to successfully develop a prototype, winning the Cold Climate Heat Pump Challenge in June 2022.
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I live in Milwaukee area. Would love to learn more about your air-source heat pumps in our extreme cold phase