Do you love steam and enjoy the heat but don't know whether you should choose a steam generator or an electric heater? Then Combi heaters are perfect for you. As the name says Combi heaters are a combination of electric heater and built-in steam generator. You can adjust the humidity and temperature separately as the heater and the steamer have their own heating elements. It is possible to determine the humidity of the sauna with an accuracy of one percent.