Steam is generated inside the top portion of the boiler by heating up the water inside the boiler until the pressure reaches the set point of around 1 bar above atmospheric pressure, this setting is controlled by the pressure switch
Once the boiler is up to pressure, you are then able to draw this steam off by opening the steam valve
on the front of the machine. As you draw more steam from the boiler, the pressure will drop and force the heating cycle to start.
The more power the machine has, i.e. the wattage of the element
, the quicker the recovery the boiler is able to achieve.