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20 years ago the best heat pumps still weren't good enough for cold days.

• bamboozled 3y ago
  Do you really think it took twenty years to bring them up to speed ? Honestly ? I’m mean if the interest and investment were there innovation would’ve happened sooner ?
  • kccqzy 3y ago
    Oh yeah absolutely it didn't need to take 20 years.
    • bamboozled 3y ago
      The only explanation I can think of is no one cares because they were told it wasn’t going to happen in their lifetimes. Now it’s accelerated , people care