A manifold (15) comprising a flow chamber (35) for receiving flow heat exchange water from respective heat sources (3, 5, 7) through first inlet ports (47, 48) and from which the flow heat exchange water is delivered to heat exchange circuits (8, 9) through flow ports (57, 58). A return chamber (36) in the manifold (15) for receiving return heat exchange water from the heat exchange circuits (8, 9) through return ports (57, 58), and from which the return heat exchange water is returned to some of the heat sources (3, 5, 7) through first outlet ports (53, 54). A bypass chamber (37) located in the manifold (15) between the flow chamber (35) and the return chamber (36) receives flow water from the flow chamber (35), which has not been drawn off by the heat exchange circuits (8, 9), through a communicating passageway (40). Heat exchange water from the bypass chamber (37) is returned through second outlet ports (55, 56) to others of the heat sources (3, 5, 7).

A pressure compensation and mixing device for a fluid heater has a mixing unit and a pressure compensation unit. The mixing unit is configured to mix a fluid guided in the mixing unit. The pressure compensation unit is configured to restrict pressure rising in the fluid. The mixing unit and the pressure compensation unit are integrated in a container unit. A bottom side of the container unit is closed by a bottom portion on which at least one connection is located via which the fluid may be discharged.

Specified is a water supply apparatus, a mixing apparatus (1) being provided for mixing, in a mixing container (3), water conveyed in the mixing apparatus (1). Arranged relative to the mixing container (3) is a base apparatus (2) which has a base chamber (9) that is hydraulically connected to a water pipe (11, 12, 13) of the water supply apparatus and has an opening to the surroundings. A sealing device (10) is installed in the base chamber (9) for the purpose of closing off the opening of the base chamber (9) from the surroundings. The sealing device (10) has a weak point wall region (17) whose pressure strength is lower than the pressure strength of wall regions of all the other components of the water supply apparatus which, in the operating state, enclose cavities that can be filled with water, and which separate these cavities that can be filled with water from the surroundings.

A water heater includes a heat exchanger. A controllable three-way proportional valve provides a proportionally controllable flow to the hot water inlet of the heat exchanger and a boiler return water outlet. A mixing tank mixes a cold water and a hot water. The mixing tank provides a time delayed mixed water. A temperature sensor is disposed in or on the mixing tank to measure a temperature of the time delayed mixed water to provide a time delayed mixed water temperature. A feedforward control process running on a processor adjusts a proportional operating position of the controllable three-way proportional valve to regulate a temperature of hot water at the hx domestic hot water outlet based on the temperature of the time delayed mixed water temperature. A method for controlling a hot water temperature of a water heater a water heater using a flowmeter based feedforward control are also described.

A heating system includes: a heat source machine which heats a heat medium; heating terminals which performs heating using heat of the heat medium; circulation components of the heat medium; a circulation circuit which is configured by connecting the heat source machine, the heating terminals, and the circulation components; and a bypass passage which is arranged in the circulation circuit to bypass the heat source machine. The heat medium heated by the heat source machine and the heat medium of the bypass passage are mixed and circulated. The circulation circuit includes distribution and mixing parts which have a first distribution part for distributing the heat medium heated by the heat source machine, a second distribution part for distributing the heat medium flowing through the bypass passage, and mixing parts for mixing the heat mediums distributed by the first and second distribution parts and corresponding to each other.

A water heater includes a heat exchanger. A controllable three-way proportional valve provides a proportionally controllable flow to the hot water inlet of the heat exchanger and a boiler return water outlet. A mixing tank mixes a cold water and a hot water. The mixing tank provides a time delayed mixed water. A temperature sensor is disposed in or on the mixing tank to measure a temperature of the time delayed mixed water to provide a time delayed mixed water temperature. A feedforward control process running on a processor adjusts a proportional operating position of the controllable three-way proportional valve to regulate a temperature of hot water at the hx domestic hot water outlet based on the temperature of the time delayed mixed water temperature. A method for controlling a hot water temperature of a water heater a water heater using a flowmeter based feedforward control are also described.

A hydraulic manifold for a hydraulic heating and/or cooling system includes a feed conduit (212) and a return conduit (216). The feed conduit (212) includes at least one feed connection (258), and the return conduit (216) includes at least one return connection (260), for the connection of a load circuit (228). A load module (204), in which a section of the feed conduit (212) with the feed connection (258), and a section of the return conduit (216) with the return section (260) are formed, includes at least one mixing device with a pump (232) and with a regulating valve (230), to admix fluid from the return connection (260) to a fluid flow from the feed conduit (212) to the feed connection (258). The section of the feed conduit (212) and the return conduit (216) in each case include an additional contact for connection with a further load module.

A water heater includes a heat exchanger. A controllable three-way proportional valve provides a proportionally controllable flow to the hot water inlet of the heat exchanger and a boiler return water outlet. A mixing tank mixes a cold water and a hot water. The mixing tank provides a time delayed mixed water. A temperature sensor is disposed in or on the mixing tank to measure a temperature of the time delayed mixed water to provide a time delayed mixed water temperature. A feedforward control process running on a processor adjusts a proportional operating position of the controllable three-way proportional valve to regulate a temperature of hot water at the hx domestic hot water outlet based on the temperature of the time delayed mixed water temperature. A method for controlling a hot water temperature of a water heater a water heater using a flowmeter based feedforward control are also described.

A pressure compensation and mixing device includes: a mixing unit configured to mix a fluid guided in the mixing unit; and a pressure compensation unit configured to restrict pressure rising in the fluid. The mixing and pressure compensation units are integrated in a container unit. The mixing unit has a mixing volume. The pressure compensation unit has a pressure compensation volume. The mixing and pressure compensation volumes adjoin each other and are separated from each other at least partially by a common separating wall. The pressure compensation unit is arranged inside the mixing unit. The mixing unit includes: an inlet tangentially arranged on the mixing volume such that a fluid let in through the inlet flows in tangentially into the mixing volume; and an outlet axially arranged on the mixing volume such that a fluid let out through the outlet flows out of the mixing volume axially.

A low pressure drop water heating system comprising a cold side conductor having a receiving end and a closed end; a hot side conductor having an exit end and a closed end; a pump; a bypass conductor having a first end and a second end, wherein the first end is adapted to the receiving end and the second end is adapted to the exit end; at least one heat exchanger having a flow valve; a heat exchanger inlet temperature sensor disposed on the inlet of one of the at least one heat exchanger; an outlet temperature sensor disposed at an outlet of the at least one heat exchanger closest to the exit end; a system outlet temperature sensor disposed on the exit end and a system inlet temperature sensor disposed on the receiving end.