They are all 3 blades , I can hear only one which is approx 800 m from the house and only with strong winds leeward side, mainly outdoor. All those with the distance above 1 -1,2 km do not disturb us. Now the regulation changes in Poland and all new wind farms will keep the distance of 10 times the height of the wind turbine.
Moreover the strongest winds come in the winter and having 3 layers glass in windows we are just fine , in the summer we do not hear them, even windows open, the nights are quiet.
Finally I prefer a bit of noise instead of smoke from the chimney.
Moreover the strongest winds come in the winter and having 3 layers glass in windows we are just fine , in the summer we do not hear them, even windows open, the nights are quiet.
Finally I prefer a bit of noise instead of smoke from the chimney.
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