An apparatus for managing hot water in a hot water storage tank heating system has one or more temperature sensors, a mounting bracket, a computer implemented processing arrangement configured to receive the temperature sensor signals and an interface to communicate with a user or additional processors either locally or remotely.

The present invention provides a hot water storage-type boiler having both a heat amount proportional control function and a backflow prevention function to prevent a backflow of exhaust gas with a simple structure. In the present invention, since a check valve is integrally coupled to a burner duct, there is an effect of convenient assembly. In addition, since the check valve is built in the burner duct, the check valve does not protrude to the outside, thereby having an effect that a separate space is not required.

A combined heat and power system generates energy and efficiently captures a percentage of such energy that would otherwise be lost to, among other things, control the temperature and humidity of a house or dwelling.

An embodiment of the present disclosure discloses an electrode boiler device configured to heat a fluid, the electrode boiler device includes a heating region formed such that electrolyzed water is disposed therein, and to have a length in one direction, a body part disposed in at least one region of an outer side of the heating region in a direction crossing a longitudinal direction of the heating region and formed to allow the fluid to be disposed therein to overlap the electrolyzed water, an electrode part having a plurality of electrodes formed to heat the electrolyzed water in the heating region, and a heat dissipation part disposed between the heating region and the body part.

An embodiment of the present disclosure discloses an electrode boiler device configured to heat a fluid, the electrode boiler device including a heating part formed such that electrolyzed water is disposed therein, a body part formed such that the fluid is disposed therein to overlap the electrolyzed water in at least one region, an electrode part including a plurality of electrodes that are disposed in the heating part to overlap the fluid in the body part and formed to heat the electrolyzed water, and a heat dissipation part disposed between the heating part and the body part.

A waste-heat recovery system includes a waste-heat-recovery heat a tank, a circulation circuit, a circulation pump, and a control device that is configured to obtain the temperature of the heat medium flowing through a heat medium outlet piping of the circulation circuit and the temperature of the water stored in the tank. The control device stops the circulation pump or reduces the rotational frequency thereof in a case where the temperature of the heat medium flowing through the heat medium outlet piping is lower, or lower by a predetermined temperature or more, than the temperature of the water.

An example indirect water heater is disclosed having a water storage tank with a primary heat exchanger. A heating fluid inlet of the primary heat exchanger receives a heating fluid from an external heat source into the primary heat exchanger. A heating fluid outlet of the primary heat exchanger returns the heating fluid to the external heat source after traveling through the primary heat exchanger. A secondary heat exchanger has a water source inlet and a water source outlet. The secondary heat exchanger is provided in thermal connection with the primary heater exchanger to preheat a source water before discharging the source water from the water source outlet into the water storage tank.

A waste-heat recovery system includes a compressor main body; a gas piping, a waste-heat-recovery heat exchanger, a circulation circuit, and a tank with a water inlet piping and a water outlet piping that stores water that exchanges heat with the heat medium by connecting to the circulation circuit. The waste-heat recovery system also includes an inlet valve, a circulation pump, and a gas temperature sensor that detects the temperature of the compressed gas by arranging in the gas piping. The waste-heat recovery system also includes a water temperature sensor that detects the temperature of the water in the tank, and a control device that controls the inlet valve and the outlet valve according to detection temperature of the gas temperature sensor and the water temperature sensor.

A combined heat and power system generates energy and efficiently captures a percentage of such energy that would otherwise be lost to, among other things, control the temperature and humidity of a house or dwelling.

A method for controlling a system including a heat pump, a space heater, space cooler, a thermal battery, an electrical battery and a grid access system, including: turning on at least one of the heat pump, charging of the thermal battery, discharging of the thermal battery, charging of the electric battery and discharging of the electric battery if a hot water demand exists; turning on at least one of the water heater, charging of the thermal battery, discharging of the thermal battery, charging of the electric battery and discharging of the electric battery if a space heating demand exists; turning on at least one of the water heater, charging of the thermal battery, charging of the electric battery and discharging of the electric 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.