In Germany, residential heat pumps that use natural refrigerants currently have a market share of approximately five percent. Energy efficient heat pumps using the natural refrigerant propane (R290) are available for all heat sources. Propane heat pumps with a high seasonal performance factor are more eco-friendly than systems that use fluorinated refrigerants, since the propane heat pumps have a low energy consumption and are virtually free of refrigerant emissions.
Heat pump subsidies
Heat pumps derive heat from the thermal energy that is stored in ambient air, underground or in groundwater. Owing to the benefits of renewable ambient heat, the installation of heat pumps is subsidized by a national market incentive programme (competency: Federal Office of Economics and Export Control, BAFA), provided that certain criteria are met.