Provided is a hot water supply tank including: a case forming an appearance of the hot water supply tank; a heating container accommodating a fluid and having an inner side treated with anticorrosive; a heater installed on an outer side of the heating container and transferring heat to the fluid; and a heat insulator interposed between the case and the heater, wherein in a predetermined volume of the heating container, a ratio at which a performance of the heater to transfer heat (hereinafter, heat transfer performance) is maximized (hereinafter, optimum ratio) among the ratios of side height to bottom diameter of the heating container (hereinafter, aspect ratios) is determined by whether the heater is installed on the bottom as well as side of the heating container, and determined based on an area of the heating container occupied by the heater (hereinafter, heat transfer area).

Methods and systems for water heater system receiving electrical power from an electrical grid. The system includes an electronic processor configured to monitor an average water temperature of the water within a water tank of the system based on a first and second signal from an upper and lower temperature sensor, operate an upper heating element heating an upper portion of the tank and a lower heating element heating a lower portion of the tank in a first operation mode, receiving, via a transceiver, either an add load command or a shed load command from a grid controller, operating the upper heating element and lower heating element in a second mode in response to receiving the add load command, and operating the upper heating element and lower heating element in a third mode in response to receiving the shed load command.

A water heater appliance is provided that includes a control panel assembly that has features that facilitate mounting of a control panel of the control panel assembly to a curved surface of the water heater appliance. For instance, the curved surface may be an outer surface of a wrapper or a shroud of the water heater appliance. Particularly, the control panel assembly includes features that permit mounting of the control panel assembly to surfaces of variable radii. Moreover, the control panel assembly includes features that facilitate access to the electrical components of the control panel during assembly and servicing of the control panel assembly. Specifically, the control panel assembly includes features that allow the control panel to hinge downward to permit easy access to the electrical components during assembly and service.

A liquid heating container to be used with a cleaning device, including a main body to store a liquid therein, a heating unit disposed on at least a portion of a base within the main body to increase a temperature level of the liquid in response to generating heat, a temperature controller disposed on at least a portion of the main body to adjust the temperature level based on a temperature setting using the heating unit, and a plurality of wheels disposed on at least a portion of the base to facilitate movement of the main body on a ground surface.

A water heater appliance, as provided herein, may include a casing, a tank, an inlet conduit, an electric heating system, a mixing valve, and a controller. The electric heating system may be in thermal communication with the tank to heat water within the tank. The mixing valve mounted to the casing downstream from the tank. The controller may be operably coupled to the electric heating system and the mixing valve to initiate a Sabbath cycle. The Sabbath cycle may include determining an anticipated Sabbath condition at the water heater appliance, directing a lower portion of the tank of the water heater appliance to a sub-cooking Sabbath temperature below 45 degrees Celsius based on the anticipated Sabbath condition, determining the sub-cooking Sabbath temperature is met, and directing a mixing valve of the water heater appliance to a Sabbath set-point temperature in response to determining the sub-cooking Sabbath temperature is met.

The present invention is directed to an integrated boiler system, comprising: two separate boilers, one disposed inside the other, each of the boilers having: (a) a vertical partition disposed therein; (b) a water passage at a top side of the partition; and (c) a water passage at a bottom side of the partition; a chamber disposed in, or generated by, a gap between the boilers; and a heating element, disposed in the chamber, for heating the boilers simultaneously by the same energy.

A water heater appliance, as provided herein, may include a casing, a tank, an inlet conduit, an electric heating system, and a controller. The tank may be disposed within the casing, the tank defining an inlet and an outlet. The inlet conduit may be mounted to the tank at the inlet of the tank. The electric heating system may be in thermal communication with the tank to heat water within the tank. The controller may be in operative communication with the electric heating system. The controller may be configured to initiate a responsive-heating cycle. The responsive heating cycle may include detecting expiration of a dormant event at the water heater appliance, initiating a randomized delay period in response to detecting expiration of the dormant event, and initiating activation of the water heater appliance following the delay period.

A control device, for a water purifier, that dispenses hot water and that includes: an input unit that is configured to receive a command signal; and a controller that is configured to control the water purifier based on the command signal, wherein the controller is configured to: control power output of a heating unit that is configured to heat water stored in a hot water tank of the water purifier, and based on the power output of the heating unit, control temperature of hot water dispensed by the water purifier is disclosed.

The present disclosure provides hot water heating systems and methods for heating the atmosphere within a predefined area. The systems include a hybrid water heating and storage apparatus configured to heat and store water including a heat pump and an electric heating tank. The systems include a recirculating pump configured to selectively draw a hot output flow of heated water from the electric heating tank, pass the heated water through a heat exchange fixture to heat the atmosphere within a predefined area, and direct the water back to the electric heating tank from the heat exchange fixture as a cold input flow. The systems further include thermostat electrically coupled to the recirculating pump and positioned within the predefined area configured to sense the temperature of the atmosphere within the first predefined area and selective operate of the recirculating pump based on a sensed temperature and a user selected temperature.

A system for hot and cold water supply to consumers that includes photovoltaic solar panel, wind turbine, water heating tank, water tank and cooling system. The heating tank includes an electrical connection mechanism, an outer layer, a water bag and heating carpet that is positioned in a dry space between them. The water tank includes an outer layer and a water bag. The electrical connection mechanism connects the heating carpet and the cooling system to the photovoltaic solar panel and to the wind turbine. The volume of the heating tank or the water tank are larger than the volume of the average hourly hot or cold water consumption of the consumer. The system is able to supply hot and cold water also at times that the photovoltaic solar panel and the wind turbine do not produce electricity.