Method and apparatus for controlling a space-heating installation

摘要

In the case of a method for controlling a space-heating installation according to a heating curve, having a boiler and a pump in the heating circuit, the speed of the pump is controlled as a function of the difference between the actual flow temperature and the actual return temperature. In order to improve the efficiency by lowering the return temperature, the output of the boiler is controlled as a function of the desired flow temperature. In addition, the speed of the pump is so controlled that a largely constant difference is established between the actual flow temperature and the actual return temperature. <IMAGE>