A gas manifold allows each distribution chamber to be fed with fuel gas at an appropriate flow rate irrespective of an increase in the number of distribution chambers included in the gas manifold. A gas manifold distributes fuel gas flowing in through an inlet to a plurality of distribution chambers through a main channel. The main channel includes a flow guide that guides the fuel gas toward a maximum distribution chamber and reduces the fuel gas flowing into other distribution chambers. This allows fuel gas at a sufficient flow rate to be fed more easily to the maximum distribution chamber than to the other distribution chambers for a larger number of distribution chambers included in the gas manifold, allowing the plurality of distribution chambers to be fed with fuel gas at appropriate flow rates.

The present invention relates to a boiler which determines a clogging degree of an exhaust flue through which combustion gas is discharged and adjusts gas supply amount to maintain its combustibility, and a combustion control method thereof, the method of the present invention including a) setting a target heat value for achieving a target temperature, b) applying a first database on the basis of the target heat value, c) measuring a rotational speed of an air blower and a pneumatic pressure of air introduced by rotation of the air blow, d) applying a second database on the basis of a rotational speed difference, a pneumatic pressure difference, and the target heat value to calculate an estimated flue clogging value according to the target heat value, and a) applying a third database according to the estimated flue clogging value to calculate an opening amount of a gas valve and control gas supply amount.

A heat-generating assembly (1) includes at least one airflow generation device, air supply which is fluidically connected to the airflow generation device, and at least three heating devices, each having an air inlet connected to the air supply, and a reheated air outlet. The airflow generation device and the heating devices are controlled in that the heating devices are distributed along at least one perimeter line, and in that each perimeter line section which contains three adjacent heating devices is curvilinear.

A fluid heating system including a burner unit is operated based on feedback control loops. The fluid heating system comprises a burner unit configured to heat a fluid, a sensor configured to sense a characteristic of the appliance, and a controller coupled to the burner unit and the sensor. The controller includes an electronic processor and a memory. The controller is configured to receive a first signal corresponding to the characteristic from the sensor, determine, based on the first signal, a first feedback loop control, control combustion of the burner unit based on the first feedback loop control, determine, based on the first feedback loop control, a second feedback loop control, and control combustion of the burner unit based on the second feedback loop control.

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 water heater and methods of operating the water heater are provided. The water heater appliance includes a tank, a cold water inlet conduit extending into the tank, a heating element within the tank, a hot water conduit extending from the tank to a mixing valve, a mixed water conduit downstream of the mixing valve, and a user interface. The method includes and/or the water heater is operable for receiving, from the user interface, a user value for a tank temperature setpoint. An upstream water heater is detected and a capacity thereof is predicted. The tank temperature setpoint is then adjusted based on the predicted capacity of the upstream water heater.

A portable heating and cooling container for keeping retained liquids heated or cooled in the same compartment. An insulated vessel with a foam or vacuum insulating layer keeps the retained liquids at a consistent temperature for long periods of time. A heating component is attachable to an outside of an insulated vessel. The heating element is not used when the retained liquids are desired to be cool or cold. The heating component may penetrate either a double sidewall of the vessel housing or the vessel lid. A resistance heating element is retained within the insulated vessel to heat the retained liquid on demand as desired allowing for access to heated liquids remotely.

A water heater can include a heat source and a heat exchanger that transfers heat to the water. A header attached to the heat exchanger provides an inlet and an outlet for water to flow into and out of the heat exchanger. The header can also include an anode assembly that releasably attaches to the header. The anode assembly can be located at a bottom of the header so that an anode in the anode assembly remains in contact with the water when water is flowing through the heat exchanger.

A water heater can include a heat source and a heat exchanger that transfers heat to the water. A header attached to the heat exchanger provides an inlet and an outlet for water to flow into and out of the heat exchanger. The header can also include an anode assembly that releasably attaches to the header. The anode assembly can be located at a bottom of the header so that an anode in the anode assembly remains in contact with the water when water is flowing through the heat exchanger.

A flameless heater system is described. The flameless heater system includes an energy source configured to generate energy and a heating system operatively coupled to the energy source, the heating system being configured to convert the energy to heat. The flameless heater system further includes a humidifying system operatively coupled to the energy source, the humidifying system being configured to convert the energy into moisture and a control system operatively coupled to the energy source, the heating system and the humidifying system, the control system being configured to monitor and control the energy source, the heating system and the humidifying system.