Abstract: A heating hair curler comprising a handle with at least one clamp and at least one push button and a heating unit for setting locks of hair, in which the heating unit has a relief in the form of a worm screw, called a fixed spiral profile, fixed to the heating unit, and in which the hair curler also comprises a mobile spiral profile which can be moved along the longitudinal axis of the heating unit by means of the push button so as to compress the lock of hair coiled into a spiral around the hair curler between the fixed spiral and the mobile spiral and thus so as to heat the lock on at least two sides at the same time.