To counter that point, high-end tumble dryers are universally built with a heat pump that is all located inside the same room (it's even in the same device). I

To counter that point, high-end tumble dryers are universally built with a heat pump that is all located inside the same room (it's even in the same device). It's because they are cooling air to dehumidify it (the drying part), then they pump the heat back into the same air to circulate back into the wet clothes. https://images.jifo.co/10180236_1567417620885.png https://images.jifo.co/10180236_1567417620885.png