Energy: Full order books for heating engineers

Save gas, save gas, save gas: That's the order of the day. But homeowners and apartment owners who want to take this seriously in the face of dramatically increased energy prices and possible bottlenecks have a problem. Craftsmen who maintain or modernize the heating are hard to come by quickly. It can take months for a technician to show up. And if you want to have a heat pump installed, you have to be even more patient.