Abstract: A method for regulating a heater including at least one heating element having a temperature-dependent electrical resistance is disclosed. The method may include determining, with a regulating unit of the heater, a current heating behaviour of the heating element based on a time profile of the resistance of the heating element. The heating element may exhibit (i) an NTC heating behaviour at temperatures below a transition temperature, (ii) a PTC heating behaviour at temperatures above the transition temperature, and (iii) a transition between the NTC heating behaviour and the PTC heating behaviour at the transition temperature and a resistance minimum. The method may further include determining, with the regulating unit, at least one input parameter for the heating element based on the current heating behaviour. The method may also include regulating, with the regulating unit, the heating element via the at least one input parameter.