There is a heating element in the kettle. As the water boils, the inner temperature of the kettle rises. Once the boiling temperature is reached, a small thermostat is triggered which turns the...
Fill the kettle half way with white vinegar and the rest of the way with water and leave it over night. The next day it should all be gone, before you use it again rinse it several times and boil it...
First, a 'Bi-metallic Strip' consisting of two different metals, having different 'Coefficients of Expansion', fused together in a two-layer strip which is connected electrically to the kettle...
yes, but you have to open the relief valve or one of the water connections to allow air to enter the water heater otherwise it will become air-locked and not drain very well.