Disclosed systems and methods relate to a water heater sensor for detecting a corrosion of an anode rod. According to embodiments, a system can include the anode rod in contact with water in a water heater, where the anode rod includes a corrodible sheath having a cavity. The system can include two electrical wires, where first ends of the two electrical wires, disposed within the cavity, are configured to come in contact with the water when the corrodible sheath of the anode rod corrodes to a certain point. The system can include a controller coupled to second ends of the two electrical wires, where the controller can detect whether the water is in contact with the first ends of the two electrical wires. The system can include an indicator to provide an indication when the water is in contact with the first ends of the two electrical wires.

The present invention relates to a heating system for heating a fluid medium, said heating system comprises a carrier unit and a heating unit, with the carrier unit having a surface comprising at least a plane portion being at least substantially normal to a longitudinal axis and an at least part-circularly shaped groove extending from said carrier unit and wound about the longitudinal axis, and the heating unit having a heating element at least partially arranged in said groove of said carrier unit. In the inventive heating system, the groove extends at least partially helically about the longitudinal axis. The present invention further relates to a heated conveyor pump for conveying and heating a fluid medium, said pump comprises a drive unit, a pump housing and the inventive heating system. The heating system is coupled to the pump housing with the groove extending into the pump housing in a manner such that the size of the cross-section of the groove decreases in the flow direction of the conveyed fluid medium.

Disclosed systems and methods relate to a water heater sensor for detecting a corrosion of an anode rod. According to embodiments, a system can include the anode rod in contact with water in a water heater, where the anode rod includes a corrodible sheath having a cavity. The system can include two electrical wires, where first ends of the two electrical wires, disposed within the cavity, are configured to come in contact with the water when the corrodible sheath of the anode rod corrodes to a certain point. The system can include a controller coupled to second ends of the two electrical wires, where the controller can detect whether the water is in contact with the first ends of the two electrical wires. The system can include an indicator to provide an indication when the water is in contact with the first ends of the two electrical wires.

A water heater includes a tank configured to hold a fluid, a sacrificial anode located within the tank, and a controller coupled to the sacrificial anode. The controller is configured to selectively complete and break an electrical circuit connecting the tank and the sacrificial anode. The controller is also configured to measure a shorted anode current through the electrical circuit, to determine a modulation duty cycle based on a current setpoint and the measured shorted anode current, and to repeatedly complete and break the electrical circuit using the modulation duty cycle.

A water heater includes a tank configured to hold a fluid, a sacrificial anode located within the tank, and a controller coupled to the sacrificial anode. The controller is configured to selectively complete and break an electrical circuit connecting the tank and the sacrificial anode. The controller is also configured to measure a shorted anode current through the electrical circuit, to determine a modulation duty cycle based on a current setpoint and the measured shorted anode current, and to repeatedly complete and break the electrical circuit using the modulation duty cycle.

Systems and methods for providing and monitoring corrosion protection are disclosed. The system can include a sacrificial passive anode and a reference electrode. The sacrificial anode and the reference electrode can both be in communication with a component that is subject to corrosion and the liquid contained therein. The sacrificial anode can be electrically connected to the component with a bonding wire. The reference electrode can be electrically connected to an electronic measurement device and the component. As the sacrificial anode is depleted the voltage of the system drops. The difference in the voltage can be monitored over time and can be used in various algorithms to calculate a protection level based on the amount of sacrificial anode remaining. When the protection level drops below a predetermined level, an alert can be provided to inform a user that the sacrificial anode needs to be replaced.

In a split system heat pump cooling and heating system, an auxiliary hot water storage tank is provided as an energy storage bank. Two sets of coils run through this storage tank, a first set carrying hot refrigerant from the heat pump to deposit energy and a second set carrying hot potable water to remove energy. Valve and switch matrixes are operated at the heat pump to provide hot potable water from the energy storage bank during both normal space heating and cooling operations of the heat pump.

In a split system heat pump cooling and heating system, an auxiliary hot water storage tank is provided as an energy storage bank. Two sets of coils run through this storage tank, a first set carrying hot refrigerant from the heat pump to deposit energy and a second set carrying hot potable water to remove energy. Valve and switch matrixes are operated at the heat pump to provide hot potable water from the energy storage bank during both normal space heating and cooling operations of the heat pump.

Provided is an anode assembly cap for selective interconnection to a tank, for example. The anode assembly cap generally includes a flange with interconnected wall configured to surround at least a portion of an anode. When installed, the anode assembly facilitates electron transfer from the tank/anode assembly interface. The anode assembly creates a closed system with respect to the tank, wherein information transfer associated with the interconnection between the anode assembly and the storage tank is minimized or prevented.

Provided is an anode assembly cap for selective interconnection to a tank, for example. The anode assembly cap generally includes a flange with interconnected wall configured to surround at least a portion of an anode. When installed, the anode assembly facilitates electron transfer from the tank/anode assembly interface. The anode assembly creates a closed system with respect to the tank, wherein information transfer associated with the interconnection between the anode assembly and the storage tank is minimized or prevented.