Hacker News Reader

You're right, the compression step is mechanical. Heat pumps are the most carbon efficient after ~0°C. So in most parts of the globe electrical heat-pumps are the most environment-friendly. Thanks I Edited my first comment.

Yes they do. They usually have classic resistive heating elements for when the outside temperatures drop too low for the heatpump to be efficient.

Obviously, he meant that the heatpump mined the cryo out of outside cold air… cryomining, cryptomining, same thing, right ?