Why the heating cost accounting law is so confusing

It has been known for years: Whoever wants to do something for climate protection has to do it broadly.So logical that the construction sector should also contribute to this Herculean task.An important point here: the heat supply.While the exit from gas and oil is getting closer, it is important to look around for alternatives.Away from individual heating, to the central system, as is the case, for example, in district heating.