A system and approach for developing a periodic water usage profile and demand for controlling a water heater. A mode may be selected for demand for a certain amount of water of a particular temperature range to be available for use from the water heater. Data on hot water usage may be collected and the usage profile and demand may be calculated from the data. The water heater may be programmed to operate in a certain fashion based on the usage profile and demand. A control knob may be on the water heater control to select a particular demand. Control of the water heater may be operated from a remote device connected in a wireless or wired fashion. An optimization program may be implemented in the control of the water heater for achieving one or more beneficial goals related to water heater performance and hot water production.

A hot water supply device (10) is provided with: a first device (for example, a kitchen remote controller (13)) for performing control relating to hot water supply; a second device (for example, a water heater (11)) that is communicably connected to the first device and performs control relating to hot water supply; and a communication unit that is provided in the first device and can be connected to an external communication network. The first device divides data of control software of the second device acquired from an external device (for example, a server (50)) via the communication unit, into a plurality of parts, and transmits to the second device.

A hot water supplier monitoring system includes a monitoring server monitoring hot water suppliers via a communication network. The hot water supplier supplies hot water by adjusting temperature of hot water heated by a heat exchange unit using combustion heat from combustion operation. The monitoring server accumulates operation data of combustion operation transmitted from the suppliers, and predicts and notifies malfunction occurrence for each supplier based on trend of change in the data over time. The data includes number of flame quenchings of the combustion unit in combustion operation. The monitoring server divides the suppliers into groups according to installation areas, compares the number of quenchings of same period among the groups, compares with previous number of quenchings of same group, and, for a specific group determined having an abnormal number of quenchings, excludes the data determined having an abnormal number of quenchings and predicts malfunction occurrence for each supplier.

A hot water supplier monitoring system includes a monitoring server monitoring hot water suppliers via a communication network. The hot water supplier supplies hot water by adjusting temperature of hot water heated by a heat exchange unit using combustion heat from combustion operation. The monitoring server accumulates operation data of combustion operation transmitted from the suppliers, and predicts and notifies malfunction occurrence for each supplier based on trend of change in the data over time. The data includes number of flame quenchings of the combustion unit in combustion operation. The monitoring server divides the suppliers into groups according to installation areas, compares the number of quenchings of same period among the groups, compares with previous number of quenchings of same group, and, for a specific group determined having an abnormal number of quenchings, excludes the data determined having an abnormal number of quenchings and predicts malfunction occurrence for each supplier.

A system and method for controlling a boiler comprising a microcomputer operatively connected to a microcontroller wherein the microcontroller is configured to provide flame safeguard operations and the microcomputer is configured to provide operating control instructions to the microcontroller. The boiler control system may operate either in a stand-alone, cascade master or cascade slave configuration.

A hot water supply device (10) is provided with: a first device (for example, a kitchen remote controller (13)) for performing control relating to hot water supply; a second device (for example, a water heater (11)) that is communicably connected to the first device and performs control relating to hot water supply; and a communication unit that is provided in the first device and can be connected to an external communication network. The first device divides data of control software of the second device acquired from an external device (for example, a server (50)) via the communication unit, into a plurality of parts, and transmits to the second device.

A heating and hot-water supply apparatus shortens the time taken for hot-water supply to stabilize at a set temperature in response to a request for a hot-water supply operation during a heating operation. The apparatus performs, using a common heating medium heated by a heater, a heating operation by circulating the heating medium through a heating terminal, and a hot-water supply operation of heating service water through heat exchange with the heating medium circulated through a hot-water supply heat exchanger and supplying hot water. A distribution unit (three-way valve) changes a distribution ratio of the heating medium between the heating terminal and the hot-water supply heat exchanger. A controller controls an amount of heat generated by the heater for the heating operation or the hot-water supply operation, and stops heating with the heater when the temperature of the heating medium reaches a predetermined upper-limit temperature.

Disclosed embodiments include apparatuses, systems, and methods for circulating and managing temperature of a liquid in a vessel. An illustrative embodiment includes an apparatus having a control section with a pump to receive liquid and expel the liquid via a pump outlet, a temperature interface to modulate a supply of energy, and a control interface to direct operation of the pump and the temperature control interface. An immersible section is configured to be at least partially immersed in the liquid and includes at least one temperature control surface to heat the liquid in response to the energy received from the temperature interface, a pump inlet to draw the liquid into the pump, and a filtration housing covering the at least one temperature control surface and the pump inlet to prevent particles over a predetermined size from passing into the pump inlet and coming into contact with the at least one temperature control surface.

A system and approach for developing a periodic water usage profile and demand for controlling a water heater. A mode may be selected for demand for a certain amount of water of a particular temperature range to be available for use from the water heater. Data on hot water usage may be collected and the usage profile and demand may be calculated from the data. The water heater may be programmed to operate in a certain fashion based on the usage profile and demand. A control knob may be on the water heater control to select a particular demand. Control of the water heater may be operated from a remote device connected in a wireless or wired fashion. An optimization program may be implemented in the control of the water heater for achieving one or more beneficial goals related to water heater performance and hot water production.

A system and approach for developing a periodic water usage profile and demand for controlling a water heater. A mode may be selected for demand for a certain amount of water of a particular temperature range to be available for use from the water heater. Data on hot water usage may be collected and the usage profile and demand may be calculated from the data. The water heater may be programmed to operate in a certain fashion based on the usage profile and demand. A control knob may be on the water heater control to select a particular demand. Control of the water heater may be operated from a remote device connected in a wireless or wired fashion. An optimization program may be implemented in the control of the water heater for achieving one or more beneficial goals related to water heater performance and hot water production.