A water heating apparatus includes: a water container configured to heat water via a convection process by receiving the water through an inlet and passing water through an outlet; and one positive temperature coefficient (PTC) heating element or a plurality of PTC heating elements arranged within the water container and configured to be immersed during the convection process. The plurality of PTC heating elements have a gap between each PTC heating element. Further, the water heating apparatus includes at least one ultrasonic transducer attached to the water container and configured to project ultrasound onto and around the PTC heating element or the plurality PTC heating elements within the water container and to descale the PTC heating element or the plurality of PTC heating elements.

A hot water heater appliance includes a boiler, a companion water heater and a controller. The controller is configured to control the water heater appliance in response to a scheduled plurality of performance modes based on a preset schedule. A first performance mode is scheduled to be performed at an expected low usage time and a second performance mode is scheduled to be performed at an expected high usage time relative to the expected low usage time.

A water heater includes a hollow body having an inlet and an outlet, a heating element arranged within the hollow body, a cavity formed between a heating surface of the heating element and an interior surface of the hollow body, an outlet tube, and an adapter sleeve. The outlet tube extends externally from the outlet of the hollow body towards the inlet of the hollow body for depositing heated fluid within the fluid tank, wherein the outlet tube is in fluid communication with the inlet of the hollow body. The adapter sleeve arranged at a lower end of the hollow body, wherein the inlet of the hollow body is arranged in the adapter sleeve.

A water heater includes a hollow body having an inlet and an outlet, a heating element arranged within the hollow body, a cavity formed between a heating surface of the heating element and an interior surface of the hollow body, an outlet tube, and an adapter sleeve. The outlet tube extends externally from the outlet of the hollow body towards the inlet of the hollow body for depositing heated fluid within the fluid tank, wherein the outlet tube is in fluid communication with the inlet of the hollow body. The adapter sleeve arranged at a lower end of the hollow body, wherein the inlet of the hollow body is arranged in the adapter sleeve.

A method for detecting and compensating for sediment build-up in a tank style water heater is disclosed. An illustrative but non-limiting example may include monitoring a temperature of water within a water storage tank of a water heater over time, resulting in a monitored temperature profile. The method may then include determining if the monitored temperature profile includes one or more features that indicate sediment build up in the water storage tank, and if so, provide an output that indicates sediment build up is present.

The invention discloses a water heater system and a control method thereof. The water heater system comprises a heating unit capable of heating water; a tank capable of communicating with the heating unit, the tank provided with at least one inlet and outlet, the inlet being capable of supplying at least one of gas and water into the tank; a pressurizing source capable of pressurizing the tank, the pressurizing source being capable of providing a pressure at which the gas and water in the tank are mixed. The invention provides a water heater system which can be applied to any existing water heater, including an electric water heater, a gas water heater, a solar water heater, an air energy water heater, and the like, which is capable of generating microbubble water for use by a user, the microbubble water has strong cleaning performance, thereby greatly improving the user experience.

A method for electronic, remote control of an existing heating element. A temperature probe is monitored programmatically. That data is managed via wifi connectivity. A user can then control the operation of the device (water heater or other) at any time and from any location.

A method for detecting and compensating for sediment build-up in a tank style water heater is disclosed. An illustrative but non-limiting example may include monitoring a temperature of water within a water storage tank of a water heater over time, resulting in a monitored temperature profile. The method may then include determining if the monitored temperature profile includes one or more features that indicate sediment build up in the water storage tank, and if so, provide an output that indicates sediment build up is present.

A method may measure a respective temperature at a respective remote location or at the respective water pipe with the respective temperature sensor. A method may determine from the respective temperature measured by the respective temperature sensor a water usage event at the respective remote location. A method may determine during a determined water usage event a temperature profile from the temperature measured by the respective temperature sensor. A method may determine from the temperature profile determined during the water usage event a risk factor of microbiological growth at the respective remote location or of microbiological growth within the respective water pipe. A method may execute a disinfection cycle for the respective remote location or the respective water pipe if the respective risk factor of microbiological growth is above a respective risk threshold.

A method may measure a respective temperature at a respective remote location or at the respective water pipe with the respective temperature sensor. A method may determine from the respective temperature measured by the respective temperature sensor a water usage event at the respective remote location. A method may determine during a determined water usage event a temperature profile from the temperature measured by the respective temperature sensor. A method may determine from the temperature profile determined during the water usage event a risk factor of microbiological growth at the respective remote location or of microbiological growth within the respective water pipe. A method may execute a disinfection cycle for the respective remote location or the respective water pipe if the respective risk factor of microbiological growth is above a respective risk threshold.