Heating systems operate on the principle of least resistance, where the heating water wants to return to the heating centre as quickly as possible. More water flows through short and thick heating pipes than through long and thin pipes. As a result, the radiators furthest away from the boiler do not get really warm and those nearby get too hot. Due to the uneven heat dissipation, expensive heating energy is lost, among other things. By means of a hydraulic alignment of the heating system, the heating system is adjusted so that the heat is optimally distributed in the house.