Congratulations, you just invented geothermal heat pumps. :) They’ve been the pr...

brtkdotse on April 5, 2022 | parent | context | favorite | on: 'Freeze-thaw battery' stores electricity long-term...

Congratulations, you just invented geothermal heat pumps. :) They’ve been the preferred way of hearing single family houses in the Nordics since the 90s.