More sustainable magnetocaloric heat pump matches current vapor-compression heat pumps for weight, cost, and power density

https://www.ameslab.gov/news/the-future-of-more-sustainable-cooling-and-heating-technology-could-be-just-around-the-corner

"vapor-compression relies on harmful refrigerants... magnetocaloric heat pumps require less energy for cooling/ heating... operates by changing magnetic field applied to magnetocaloric material while pumping fluid moving heat... using space/ materials more efficiently: gadolinium, but no lanthanum-iron-silicon materials, less permanent magnet/ magnetic steel... cost will match that of current vapor-compression heat pumps in mass production"

Related: New research confirms heat pumps are three to four times more efficient than boilers
https://www.kensaheatpumps.com/news-blog/new-research-heat-pumps-more-efficient-than-gas/