A water heating and treatment system includes a water heater, a hot water outflow line from the water heater, and a cold water supply line to supply water to the water heater. The cold water supply line includes at least one of an anti-scale device, and a UV sanitation lamp. A mixing station supplies a temperature regulated heated water to one or multiple temperature zones. The water heater, the anti-scale device, the UV sanitation lamp, and the mixing station are contained in a single enclosure having at least one transparent wall through which components can be viewed. A method for treating hot water to suppress pathogens and undesired bacterial content in a domestic water system is also described.

The present invention describes a water distribution system 1 comprising a water supply, a heating source 100, at least one temperature sensor, a flow path for water with a user outflow UO, and a control unit for operation of the water distribution system 1 said temperature sensor being connected to the control unit, wherein the control unit also is connected to at least one presence sensor PS arranged for the detection of presence of a human or animal body in physical proximity to the user outflow UO and/or in an outflow direction area from the user outflow UO and wherein the control unit is arranged to drive a hot water pasteurization procedure of at least a portion of the flow path and out from the user outflow UO based on a response or an indication of no presence of a human or animal body in physical proximity to the user outflow UO and/or in an outflow direction area from the user outflow UO.

The presently disclosed subject matter is generally directed to a faucet that includes one or more integrated detection mechanisms to decrease or eliminate the incidence of healthcare associated infections. Specifically, the disclosed faucet a includes timing sensor that is activated by the user to ensure that the user washes their hands for the appropriate amount of time. The faucet further includes a thermal sensor positioned within the interior of the faucet neck that detects the temperature of the water flowing through the faucet. Optionally, the faucet can include an additional internal sensor that the detects the presence of one or more harmful proteins. In this way, the faucet promotes efficient hand washing techniques, as well as provides information on the condition of the water to track harmful bacteria (e.g., legionella) growth.

A heating system including a water conductor, a valve configured to cooperate with a fluid moving device which together operable to selectively circulate a heat transfer fluid in at least one of a first fluid circuit and a second fluid circuit, a heat exchanger and a blower operable to supply a stream of fluid over the heat exchanger, wherein the heat exchanger is fluidly connected to the first fluid circuit, wherein the heat exchanger being disposed to transfer heat between the heat transfer fluid and the heat exchanger, a coil fluidly connected to the second fluid circuit, wherein the coil is configured to be disposed on a drainage tube to transfer heat between the heat transfer fluid and the coil, a final heat exchanger configured for thermally coupling the first fluid circuit and the water conductor and the second fluid circuit and the water conductor.

A sanitizing system for sanitizing a water flow at a point of use, the sanitizing system including an ozone demand indicator configured for determining the existence of a demand for ozone in the water flow; an ozone generator configured to be disposed no more than about 72 inches upstream of the point of use on a fluid conductor supplying the water flow at the point of use, wherein ozone generated by the ozone generator is configured to be disposed in the water flow to sanitize the water flow; and a control device operable to control the ozone demand indicator and the ozone generator responsive to the ozone demand indicator, wherein the control device is configured to cause the ozone generator to start generating ozone upon receiving an indication from the ozone demand indicator that the demand for ozone exists.

The invention is based on a method, particularly a locally fixed method, for measuring a contamination of drinking water by microorganisms (16) in a drinking water conduit (12).

It is proposed that a contamination of drinking water is predicted in at least one prediction procedure (88) by means of at least one contamination risk parameter, and an actual contamination of drinking water is measured in at least one measuring procedure (90).

Embodiments of the present disclosure provide a system for disinfecting water for hydronic space conditioning and domestic hot water. The system includes a thermal storage tank, a disinfecting device and a control unit. The control unit monitors an outlet temperature of water exiting the thermal storage tank. Further, the control unit calculates a temperature difference between a temperature threshold limit associated with the disinfecting device and the outlet temperature. The control unit transmits a first signal to the disinfecting device when the temperature difference is a positive value. The first signal operates the disinfecting device in the activation mode for heating the water to provide anti-bacterial sanitation. The control unit transmits a second signal to the disinfecting device for deactivating the disinfecting device when the temperature difference is a negative value. The sanitized water from the disinfecting device is used for conditioning an enclosure and a domestic hot water.

A hot water tank including: a shell enclosing a chamber containing a heat exchange liquid, the shell including a base, side wall and lid; a cold water inlet connected to a first end of a heat exchanger, and a hot water outlet connected to a second end of the heat exchanger, wherein the heat exchanger is located in an upper portion of the chamber; a primary heating element connected to a power source for heating the heat exchange liquid, the primary heating element being located in a lower portion of the chamber.

A drinking water supply system with a drinking water line system includes multiple drinking water removal points connected to the drinking water line system, at least one sensor, which is designed to determine measurement values, and a central controller, which is designed to receive and evaluate the measurement values determined by the at least one sensor. The central controller is designed to control the control elements depending on the received measurement values. The drinking water line system has a drinking water line section for supplying drinking water to multiple drinking water removal points. A volumetric flow rate sensor is provided in order to measure the volumetric flow rate of the water in the drinking water line section and/or a pressure sensor is provided in order to measure the water pressure in the drinking water line section. The controller is designed to carry out a measure.

The invention relates to a method for operating a circulation system comprising a cooling device with an input port and an output port for cooling water. The invention also relates to a circulation system for implementing said method.