A combination water heating, air conditioning refrigerant system is described. The combined system includes a plurality of independently adjustable electronic expansion valves. The expansion valves can independently modulate the delivery of high-temperature, high-pressure refrigerant to either a water heat exchanger or an outside condenser. A controller can receive input signals, including temperature signals from one or more temperature sensors that indicate the temperature at various locations of the system. The temperature signals include one or more of water temperature signals, ambient air temperature signals, or refrigerant super heat temperatures signals. In response to the input signals, the controller can output control signals to one or more of the plurality of electronic expansion valves.

A combination water heating, air conditioning refrigerant system is described. The combined system includes a plurality of independently adjustable electronic expansion valves. The expansion valves can independently modulate the delivery of high-temperature, high-pressure refrigerant to either a water heat exchanger or an outside condenser. A controller can receive input signals, including temperature signals from one or more temperature sensors that indicate the temperature at various locations of the system. The temperature signals include one or more of water temperature signals, ambient air temperature signals, or refrigerant super heat temperatures signals. In response to the input signals, the controller can output control signals to one or more of the plurality of electronic expansion valves.

Disclosed are a method for controlling a heating water heater, a heating water heater, and a computer-readable storage medium. The method includes: controlling the heating outlet to be closed and the heat supply outlet to be opened after receiving a bath water signal; obtaining a water temperature of a bath outlet; obtaining a duration that the water temperature at the bath outlet is within a preset water temperature range; controlling an opening degree of the heat supply outlet to decrease and an opening degree of the heating outlet to increase when the duration is greater than or equal to a first preset duration, and a heat load of the heating water heater is less than a rated load; and controlling the heat load of the heating water heater to increase, and maintaining the water temperature at the bath outlet within the preset water temperature range.

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 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.

The disclosed technology includes a header assembly for a water heating system heat exchanger. The header assembly can have an inlet, an outlet, a first compartment configured to receive a fluid from the inlet and direct the fluid to a first heat exchanger tube, a second compartment configured to receive the fluid from a second heat exchanger tube and direct the fluid to a third heat exchanger tube, and a third compartment configured to receive the fluid from a fourth heat exchanger tube and direct the fluid to the outlet.

The disclosed technology includes a header assembly for a water heating system heat exchanger. The header assembly can have an inlet, an outlet, a first compartment configured to receive a fluid from the inlet and direct the fluid to a first heat exchanger tube, a second compartment configured to receive the fluid from a second heat exchanger tube and direct the fluid to a third heat exchanger tube, and a third compartment configured to receive the fluid from a fourth heat exchanger tube and direct the fluid to the outlet.

A water heating apparatus is provided. The water heating apparatus includes a pump and is configured to be able to set a hot-water circulation route to circulate hot water discharged from a heat exchanger to be re-entered into the heat exchanger by operation of the pump. When a state of a hot-water supply operation in which a burner drives combustion is changed to an end state, hot water in the heat exchanger is circulated in the hot-water circulation route to suppress deposition of scale.

A water heating apparatus is provided. The water heating apparatus includes a pump and is configured to be able to set a hot-water circulation route to circulate hot water discharged from a heat exchanger to be re-entered into the heat exchanger by operation of the pump. When a state of a hot-water supply operation in which a burner drives combustion is changed to an end state, hot water in the heat exchanger is circulated in the hot-water circulation route to suppress deposition of scale.

A water preconditioner system comprising a user interface for manually or automatically receiving inputs from a user, a mixing assembly including a plurality of control valves coupled to hot and cold water supply lines, and a controller in communication with the plurality of control valves and the user interface for controlling the operation of the system. The controller is configured to operate in a plurality of modes to precondition the water to one of a desired preset water dispensing temperature or a target temperature different from the desired preset water dispensing temperature.