Lüften means airing out the house, which I also love to do. It could be inefficient, but it is less inefficient if you hadn't actually heated the house. I think only mechanical ventilation can reduce this practice of manually opening windows.
Lüften means airing out the house, which I also love to do. It could be inefficient, but it is less inefficient if you hadn't actually heated the house. I think only mechanical ventilation can reduce this practice of manually opening windows.
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