Electric boiler

The utility model relates to an electric heating water boiling device, comprising an outer shell, an inner container, an upper cover, a water outlet pipe and a power supply circuit. The electric heating water boiling device is provided with a preventing incrustation heat preservation heating circuit, a drinking water reboiling circuit and a waterless electricity breaking circuit. The bottom of the electric heating water boiling device is provided with a power supply which is turned off when the temperature attains 90 degree C-92 degree C . When the temperature reduces to 55 degree C-57 degrees C, the temperature controlling switch T2 of the power supply is reset and turned on. The electric heating water boiling device is provided with a thermosensitive resistor Rt with steam controlling. The preventing incrustation heat preservation heating circuit is a circuit which can control the water temperature among 55 degree C-100 degree C . Because the utility model utilizes the control circuit of the steam thermosensitive resistor and carries out low-temperature controlling in the circuit. Utilizing appropriate heat preservation heating wattage to keep the water temperature which isn't lower than 90 degree C, the utility model simultaneously provides reboiling function. The water temperature is raised once more to ensure the using of the water.The utility model can prevent incrustation and is convenient, sanitary, safe and practical.