Horror scenarios from the “heating hammer”, cabinet decisions with reservations, nightly coalition meetings – and in the end one Emergency decision of the Federal Constitutional Court, which postponed its adoption until after the summer break: No other law from this coalition has had such a roller coaster ride as the amendment to the Building Energy Act, or GEG for short, commonly known as the Heating Act. This Friday it finally passed the Bundestag. That’s almost exactly six months after the first drafts sparked fears that the federal government now wanted to rule into every single boiler room. But what does the law mean for German heating systems? The SZ answers the most important questions.