Comments by "David Elliott" (@davidelliott5843) on "This Heating Tech Breaks the Laws of Physics?" video.

  1. Refrigeration uses a heat pump. Air conditioning uses a heat pump. Run it one way and you get cooling. Run it the other way and you get heating.
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  2.  @mc2engineeringprof  Gas fired refrigerators are surprisingly efficient but they do use the refrigeration cycle. A small heater evaporates ammonia. This loops over to the condenser wher it’s cooled. Liquid ammonia takes up 100th of the space so creates a suction evaporating ammonia in the cold boil gives the cooling.
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  3. Fridges and freezers use propane as the working fluid. It’s cheap, very effective and does not destroy the ozone layer. Flammable yes if it’s not inhibited, but so are gas lighter refills and deodorant sprays.
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