Load-based testing for heat pumps is an emerging experimental methodology designed to capture realistic, dynamic equipment performance by allowing the system to operate under its native ...

Heat pumps and other building thermal systems can cut energy use in buildings, but real-world efficiency often falls short due to part-load operation, ...

Researchers at Fraunhofer ISE have tested various types of heat pumps in existing buildings across Germany over four years, finding that the systems achieved seasonal performance factors between 2.6 ...

Heat pumps are hot. And when the need arises, they’re pretty cold, too. These high-efficiency electric fixtures heat and cool using your home’s existing ductwork. That means they can replace a ...