Abstract: A method and a device for energy control in a heating system that is regulated with the aid of an outdoor temperature sensor, where the outdoor temperature sensor (1) is influenced with the aid of an external control by a heating or cooling element (4, 3) to determine a temperature that may deviate from the actual outdoor temperature, and where the outdoor temperature sensor (1) is connected to an existing control and regulatory system for a heating facility in a building in order to transfer the temperature determined to the control and regulatory system.