The Hunt for the Most Efficient Heat Pump in the World

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The Hunt for the Most Efficient Heat Pump in the World
EnergyHeat PumpsElectricity
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A new generation of engineers has realized they can push heat pumps to the limit, but just how much heat you can extract depends on your setup.

Outside a 100-year-old house on the edge of the Peak District in northern England, a heat pump’s fan blades are swiftly spinning. They’re drawing outdoor air over coils of refrigerant, harvesting warmth from that air. All air-source heat pumps do this—and they can glean heat even on cold days. But this heat pump is special. It is one of the most efficient installations of its kind in the country.

spent weeks scouring the web and speaking to experts to find examples of heat pump systems that could beat Rob Ritchie’s current SCOP and found only a handful of possible contenders. “There are a couple of organizations that are trying to get more real-world performance data on heat pumps, but it’s tough to find,” says Kevin Kircher, who studies heat pump efficiency at Purdue University in the US.

. “I don’t really want to be a celebrity on this,” he insists, but he’s glad to raise the profile of these systems. “I certainly would wave the flag for heat pumps. I think they’re brilliant.”

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