A heat storage system control device includes a receiving unit configured to acquire power supply and demand information from a power control instruction device, an operation schedule determination unit configured to determine an operation schedule of a heat storage device based on the power supply and demand information, a transmission unit configured to transmit the operation schedule determined by the operation schedule determination unit to the power control instruction device, and a heat storage device control unit configured to control an operation of the heat storage device based on the operation schedule determined by the operation schedule determination unit.

A system for space heating or cooling a heated space includes a heat pump including a refrigeration circuit for transferring heat between a heat source and a heat load for heating and cooling operations. A controller controls the heat pump to perform the heating and cooling operations. A user interface receives user inputs, wherein the user inputs include an indication of discomfort based on temperature. The controller creates a profile for a minimum comfortable temperature level and a maximum comfortable temperature level, and the controller controls the heat pump to perform the heating and cooling operations in accordance with the profiles for the minimum and maximum comfortable temperature levels. The controller may generate an optimized heat demand plan in accordance with predictions of outdoor and indoor temperature, cost, and demand. The plan is optimized to cost-effectively maintain the temperature of the heated space within the comfortable temperature range defined by the profiles.

A method for operating a water heater appliance includes obtaining a plurality of water temperature measurements over a period of time, determining at least one heated water draw event for the water heater appliance, and establishing a future operating schedule for the water heater appliance. The water heater appliance is operated according to the future operating schedule.

The present disclosure provides a computer-implemented method of predictively preparing a water provision system installed in a building, the water provision system comprising a heat pump configured to transfer thermal energy from outside the building to a thermal energy storage medium inside the building and a control module configured to control operation of the heat pump, the control module having executing thereon a first machine learning algorithm, MLA, having previously been trained to determine a correlation between cold water usage and a subsequent heated water demand, the water provision system being configured to provide water heated by the thermal energy storage medium to an occupant of the building at one or more water outlets, the method being performed by the control module and comprising: receiving first sensor data indicating cold water usage at a first water outlet; determining whether the cold water usage at the first water outlet is correlated to a subsequent heated water demand at a second water outlet by inputting the first sensor data to the first MLA; and upon determining that the cold water usage at the first water outlet is correlated to a subsequent heated water demand at a second water outlet, preparing the water provision system for delivering heated water.

A jacket for a hot water heater appliance includes a top, bottom, front, back, and a fastener. The top is configured to insulate an upper portion of a hot water tank. The bottom is configured to insulate a lower portion of the hot water tank. The front is configured to insulate a front portion of the hot water tank. The back is configured to insulate a back portion of the hot water tank. The fastener is configured to releaseably fasten the front to the back. The top, bottom, front and back include expanded polypropylene (EPP) configured to provide insulation to the hot water tank.

A water heater includes a leak detection system. The leak detection system includes a leak sensor assembly that is disposed in a bottom pan of the water heater. The leak sensor assembly includes a sensor housing that has a sensor channel that is formed therein such that the sensor channel is disposed at an elevation from a base of the bottom pan when the sensor housing is disposed on the base of the bottom pan. Further, the leak sensor assembly includes a leak sensor that is disposed in the sensor channel of the sensor housing. The leak sensor detects water that leaks from the water heater and accumulates in the bottom pan when a level of the water in the bottom pan rises to the elevation of the sensor channel and the leak sensor that is disposed therein.

A method for controlling a system including a heat pump, a space heater, a space cooler, a thermal battery, an electrical battery and a grid access system, the method including turning on at least one of discharging of the thermal battery and discharging of the electric battery, if a hot water demand exists; turning on at least one of the heat pump, charging of the thermal battery, charging of the electric battery and discharging of the electric battery, if a space heating demand exists; turning on charging of the thermal battery, if a space cooling demand exists; and backfeeding electricity from the electric battery to a grid through the grid access system, if electricity sale is desired.

A water heater system, the system comprising a water boiler including: a metallic spiral tube configured to receive at a top end thereof, from an external source, a fluid in a heated state; to output, at a bottom end thereof, the fluid in a cooled state; and a cylinder adapted to abut the metallic spiral tube; wherein the metallic spiral tube in the heated state, heats the cylinder which conducts the heat through the cylinder to heat water in the water boiler

A water heater system, the system comprising a water boiler including: a metallic spiral tube configured to receive at a top end thereof, from an external source, a fluid in a heated state; to output, at a bottom end thereof, the fluid in a cooled state; and a cylinder adapted to abut the metallic spiral tube; wherein the metallic spiral tube in the heated state, heats the cylinder which conducts the heat through the cylinder to heat water in the water boiler

A method, system or computer usable program product for managing a water heater utilized for heating stored hot water including utilizing an expected user schedule to determine an expected user load for storage in memory, utilizing ambient temperature data to determine a water heating load for storage in memory, utilizing a processor to analyze the expected user load and the water heating load stored in memory to determine a desired temperature for the stored hot water according to a predetermined policy, and utilizing the processor to instruct the water heater to heat the stored hot water to the desired temperature.