Efficient Air-Conditioning Beams Heat into Space
Howis this "20% energy savings" product different from their original "all passive" pitch[1] from 2014?<p><a href="https://spectrum.ieee.org/tech-talk/green-tech/solar/passive-radiators-cool-by-sending-heat-straight-to-outer-space" rel="nofollow">https://spectrum.ieee.org/tech-talk/green-tech/solar/passive...</a>