Germany's buildings should be climate neutral by 2045. New heating systems must run on 65 percent renewable energy.

Gas heating can still be installed in existing buildings as long as the respective city or municipality has not yet decided on a heating plan. Heat pump electric heating Solar thermal energy Biomass heating (e.g. wood pellets) Hydrogen heating Hybrid models (heat pump or solar thermal energy) District heating (depending on an available network) It may also be possible to install a hydrogen-capable gas heater in new buildings.