Hehe, full-on eco-terrorism here, or what? We live in the middle of the Thuringian Forest at over 700 m altitude, it never really gets that hot here; besides, we are the only ones in the village who have something like this and the planet will probably survive the few square meters of stones here in the forest. I have a photovoltaic system on the roof, so I'm already doing my part for climate protection, I don't burn oil or gas either, you little guerrilla environmentalist behind the house there is enough greenery, it also takes enough work but we have other priorities in life than constant greenery maintenance. : I had the generator placed there out of consideration for the neighbors on the right and left; the fan noise doesn't bother anyone on the street side.