Not true. For example you could convert the heat into photons (infrared radiation) and beam that out of the room without needing a pipe. You would probably nee

Not true. For example you could convert the heat into photons (infrared radiation) and beam that out of the room without needing a pipe. You would probably need an infrared transparent patch on the window to aim at. https://spie.org/news/5129-a-metamaterial-to-convert-heat-to-light https://spie.org/news/5129-a-metamaterial-to-convert-heat-to...