The quarterly figures published by the Federation of German Heating Industry (BDH) last week mark a trend reversal. After the heat pump market grew steadily for more than ten years, sales slumped by 52 percent in the first quarter of 2024 compared to the previous year. While 96,500 heat pumps were sold in Germany from January to March 2023, only 46,000 devices were sold in the same period this year.