Abstract: A water purifier which purifies water by superheated steam. The water purifier includes a raw water reservoir for contaminated water; a heater at least partially disposed within the raw water reservoir and including a heat source, an inlet for steam and an outlet for superheated steam; an inlet conduit in fluid communication with the inlet of the heater for transporting steam produced by boiling said raw water; and a condenser in fluid communication with the outlet of the heater. The heater both boils the raw water to produce a substantially saturated steam and superheats the substantially saturated steam. The water purifier can further include a purified water reservoir in fluid communication with the condenser.

Abstract: The present invention relates to a heating device for submersion within a tank of water to boil the water to produce steam, and for superheating the steam, comprising an outer sleeve; an inner sleeve partially disposed through the outer sleeve and having a proximal end, and a distal end in the form of an outlet port, the inner sleeve further defining a vapor chamber; a heating element disposed within the vapor chamber and in electrical communication with an external electrical power supply, the heating element adapted to produce heat in response to electrical energy from the power supply; a steam inlet tube extending outwardly from the inner tube and in fluid communication with the vapor chamber; and a one way valve disposed within the vapor chamber adjacent the outlet port, the valve adapted to selectively gate the flow of vapor from within the vapor chamber through the outlet port; wherein the heating device is configured to heat the water within the tank to a boil to produce steam, the steam inlet tube ada