Protection and control of continuous boiling water units

A continuous boiling water unit comprising a water heating tank containing an electric heating element near the bottom of the tank, a level control tank mounted alongside the heating tank, an interconnecting steam communication port between the level control tank and the heating tank, a draw-off connection from the heating tank, a flow connection between the level control tank and the water heating tank, a temperature sensing device operable to remotely sense the temperature of water in the heating tank, and control means, coupled to said temperature sensing device and said heating element, and operable to cause the cut-off of electricity from said heating element when said temperature sensing device senses water in said heating tank to be boiling, and wherein the control means includes an adjustable timer operable to determine elapsed time from the last occurrence of cut-off electricity, and when said elapsed time equals or exceeds a predetermined time interval, causing said control means to supply electricity to said heating element to heat said water.