The German government has set itself the goal of installing six million heat pumps by 2030. Some of the refrigerants used in the pumps are highly toxic PFAS, so-called "poisons of the century" A Europe-wide ban is already being planned, it would affect the majority of the heat pumps installed so far.
There is an environmentally and climate-friendly alternative to the dangerous PFAS: propane. The Federal Association of Heat Pumps BWP criticizes the safety risk of propane, as it can ignite relatively easily.