first magneto caloric heatpump for low temp small loads!

here is the story, really quite exciting, the only moving parts are a circulation pump and electric operated valves to control flow, and a smart bit of programming to take in account the various pressures, temps, and optimise the various flow rates by adjusting the magnetic flux around the heat exchanger body, a five kg piece of ......check the story, i forget now... https://www.pv-magazine.com/2024/09/30/magnetocaloric-heat-pump-for-residential-applications/