Low temperature electric heater

The utility model relates to a low-temperature heating device which has a metal conductor wound with a metal coil. Two leading ends of the coil are connected with a fundamental frequency power supply. The utility model combines the coil and the conductor or a magnetizer into a whole. Connection of the coil and the fundamental frequency power supply can produce an alternating electromagnetic field. Conversion between electric energy and thermal energy is realized by vortex formed during alternation of the electromagnetic field. Therefore, little energy consumption is produced during the energy conversion thus using cost can be reduced accordingly.