75% of the German population uses oil or gas for heating[1]. Most of them rent a flat[2] in a city [3]. So heat pumps are nice and you even get money from the

75% of the German population uses oil or gas for heating[1]. Most of them rent a flat[2] in a city [3]. So heat pumps are nice and you even get money from the state to install them but they're not doable by most of the people. [1] https://de.statista.com/infografik/11385/art-der-heizung-und-zum-heizen-genutzte-energietraeger/ https://de.statista.com/infografik/11385/art-der-heizung-und... [2] https://de.statista.com/statistik/daten/studie/171237/umfrage/wohnsituation-der-bevoelkerung/ https://de.statista.com/statistik/daten/studie/171237/umfrag... [3] https://de.statista.com/statistik/daten/studie/152879/umfrage/in-staedten-lebende-bevoelkerung-in-deutschland-und-weltweit/ https://de.statista.com/statistik/daten/studie/152879/umfrag...