container 1 is filled with water the float valve 2 activates the magnetic switch 3 the pcb 5 then controls the device for example the water pump 4 controlled by pcb 5 begins to pump water through the second tube 16 into the container 90 the pcb 5 then operates to cause the electric heating tube 8 in the container 90 to be energized in one embodiment of the invention the operation of the pump 4 is controlled by the pcb 5 with a change of resistance the operation of the pump 4 may allow for a continuous circulation wherein the pressure in the container 90 is less than for example 0 2 bar steam generated in the container 90 by heating tube 8 is discharged through the outlet 91 and into the steam intake 120 of the four way electromagnetic valve 12 the steam is then discharged through the steam outlet 121 in one embodiment of the present invention air in the container 90 is discharged to ensure when the iron is in a cold condition that outer air pressure and air pressure inside the container are balanced in order to prevent air pressure caused by change of the steam generating device from a cold state.