Abstract: A water tank management system that connects either to a hot water tank directly or to an electric panel connected to the tank. The system comprises at least two temperature sensors, each of which is attached on the surface of the hot water tank near respective heating elements. The system comprises a control box which includes a solid-state relay that modulates the flow of electrical power to the heating elements in order to lower the energy used by the tank. The modulation is controlled by a program stored in a memory in the control box or communicated to the control box via an external controller. The system optionally comprises a third temperature sensor placed outdoors to measure the ambient outdoor temperature. With this feature, the system can activate a program to reduce energy consumption when the outdoor ambient temperature is outside a critical temperature range.

Abstract: A water tank management system that connects either to a hot water tank directly or to an electric panel connected to the tank. The system comprises at least two temperature sensors, each of which is attached on the surface of the hot water tank near respective heating elements. The system comprises a control box which includes a solid-state relay that modulates the flow of electrical power to the heating elements in order to lower the energy used by the tank. The modulation is controlled by a program stored in a memory in the control box or communicated to the control box via an external controller. The system optionally comprises a third temperature sensor placed outdoors to measure the ambient outdoor temperature. With this feature, the system can activate a program to reduce energy consumption when the outdoor ambient temperature is outside a critical temperature range.