Abstract: The invention provides a heating device comprising a base structure comprising a fluid channel and a heating element, the heating element arranged in use to heat fluid within the fluid channel, the heating device further comprising a cooling means, arranged in use to cool the fluid channel.

Abstract: A water heating system can include a water heater having a tank, and a first temperature sensor disposed toward a top end of the tank to measure a first temperature and a second temperature sensor disposed toward a bottom end of the tank to measure a second temperature. The water heating system can further include a controller communicably coupled to the first temperature sensor and the second temperature sensor, where the controller determines an amount of heated water in the tank based on a plurality of algorithms and measurements made by the first and second temperature sensors. The plurality of algorithms solves for at least one calculated temperature for at least one point between a first location of the first temperature sensor and a second location of the second temperature sensor, where the at least one calculated temperature is used to determine the amount of heated water in the tank.

Abstract: A device (1) for preparing a beverage on the basis of interaction between a beverage extract and an extracting fluid, particularly a beverage having a crema layer, comprises a brewing chamber (10) for accommodating a quantity of the beverage extract, having an inlet (11) for receiving the extracting fluid and an outlet (12) for discharging the beverage. Furthermore, the device (1) comprises restricting means (60) which are movable between an activated position for realizing a restriction (61) in the outlet (12) of the brewing chamber (10) and an inactivated position for minimizing the restriction (61) in the outlet (12) of the brewing chamber (10), and also actuator means (70) for controlling the position of the restricting means (60) in relation to an actual state of pumping means (30) as present in the device (1) for realizing a flow of the extracting fluid.

Abstract: Disclosed are a sterilizing structure of a water outlet and a water treatment apparatus including the same. The sterilizing structure of the water outlet according to an embodiment of the present invention may comprise a water outlet for discharging treated water treated in a water treatment device externally, and a sterilizer for sterilizing the water outlet.

Abstract: A water treatment system having a water treatment engine including a pressure vessel, electronics module and optionally replaceable shrouds. The water treatment engine may include a tether and a single connection point for water and power lines. The tether may have a release that is accessible only when the electronic module is removed. The water treatment engine may be circular and the water and power lines may be arranged within a region bounded by tangent lines that square the circular shape. The electronics module may be configured to receive one of a variety of alternative interchangeable displays. The electronics module may have a single display port that provides power and data that can be utilized by a plurality of different types of displays. The system may include a replaceable cartridge with soft end caps that include an integral seal and are shaped to self-center within the pressure vessel.

Abstract: Plumbing systems utilizing a single pipe with individual heating elements located in close proximity to individual plumbing fixtures. These provide users with the ability to control the temperature of water at the site of the individual fixture without need to mix hot and cold water to obtain a desired temperature.

Abstract: An operation plan correction unit is included which, after start of operation based on an operation plan, predicts a subsequent hot water supply load at a predetermined day on the basis of a hot water supply load result at the predetermined day, and changes a subsequent operation plan at the predetermined day generated by an operation plan generation unit, on the basis of the hot water supply load predicted again and a remaining amount of stored hot water in a hot water storage tank.

Abstract: A tankless electric water heater system including a heating chamber having an inlet at a first end and an outlet at a second end, a heating element connected to the heating chamber, a first temperature sensor disposed near the first end of the heating chamber, a second temperature sensor disposed near the second end of the heating chamber, a flow sensor configured to detect a flow of water and disposed near the heating chamber, and a controller connected to the first and second temperature sensors, the flow sensor, and the heating element. The controller is configured to have a set point temperature, to detect temperature and flow data from the first and second temperature sensors, and the flow sensor, and to provide as output a power setting to the heating element.

Abstract: Direct current solar electric heating elements can be powered by an array of photovoltaic panels. The direct current voltage can be low or high with proper electrocution protection. Insertable immersion heating elements can be placed into any existing, gas, propane or electric hot water tank, cooking pot or hot tub. Heating elements in air can also be used for heating ovens, range cook tops and sauna heaters. The output of the photovoltaic panel is interfaced to the electric heater element via either direct connection or using a load-matching controller which maximizes the power delivered to the heater under all sun conditions. The maximum heater temperature is regulated by a thermostat.

Abstract: Thermal energy storage apparatus, controllers and thermal energy storage control methods are described. According to one aspect, a thermal energy storage apparatus controller includes processing circuitry configured to access first information which is indicative of surpluses and deficiencies of electrical energy upon an electrical power system at a plurality of moments in time, access second information which is indicative of temperature of a thermal energy storage medium at a plurality of moments in time, and use the first and second information to control an amount of electrical energy which is utilized by a heating element to heat the thermal energy storage medium at a plurality of moments in time.

Abstract: A hardware system that performs new energy- and water-saving, restorative tasks upon use is provided. In some aspects of the invention, energy-saving hot water recapturing techniques are provided. In a preferred embodiment, the system may push hot water back to a water tank, and halt such pushing after capturing all such hot water. In other aspects, specialized energy-saving pipes further assist the system, and a user's behavior may also assist the system in implementing additional energy and water-saving options and settings, including, but not limited to, a “Final Rinse” option and the timing of ending water service. In still other aspects, a user's ending use of water service a plumbing may also trigger an ending spray of handled parts of those fixtures and, optionally, a soap or antiseptic spray or other secretion. The same technology may be applied to other handles and fixtures, like door handles or elevator buttons.

Abstract: A heater and heating system for installation adjacent a valve to control temperature near the valve is disclosed. In an example, the heating system includes a housing having a heating chamber formed therein, the heating chamber configured to retain a heating fluid. The heating system also includes an electric heating element disposed in thermal contact with the heating chamber. The heating system also includes a connection to attach the heating chamber to the valve.

Abstract: A representatively pumpless water heater system has an instantaneous water heater coupled in series with a storage water heater by piping circuitry incorporating a fixed (and selectively fixed) bypass useable to route pressurized incoming cold water sequentially through the instantaneous and storage type heaters. The fixed bypass can also route pressurized incoming cold water to mix with the heated water exiting the instantaneous heater for delivery to the storage heater.

Abstract: A method is provided for interconnecting a single electrical heating element of a hot water heater to first and second AC electrical power sources. Typically, these first and second AC electrical power sources include a utility provided electrical power source and a renewable power source that generates AC power from DC power. The method includes operating a controller that selectively connects and disconnects the first and second power sources. If sufficient electrical power is available from the renewable power source, the utility provided electrical power source may be disconnected to preferentially utilize renewable energy.

Abstract: A hot water heater includes a tank for storing water, one or more heating elements for selectively applying heat to the water in the tank, and a controller for controlling the heating elements, operative to automatically self-program control of the hot water heater to reduce energy consumption of the hot water heater based on usage data. The controller is operative to execute a learning algorithm that tracks usage data of the hot water heater based on one or more parameters.

Abstract: Apparatus utilizing a hot water supply for melting snow on any surface, while eliminating icy build up inside a sprinkler pipe line and sprinkler head comprising; a 2 way electronic computer controller plugged into a 220 volt electrical outlet; a hot water heater, electro mechanical principle assembly/reduced pressure zone backflow preventer, regulating the heat encompassing a heated underground recirculation manifold pipe lines and heated underground sprinkler pipe line assembly.

Abstract: A storage tank and method for monitoring thereof is provided. The tank includes a first panel that defines a mounting surface for carrying a heating element. The heating element extends into the tank for heating liquids stowed therein. A sidewall interconnects the first panel and a spaced-apart second panel. A support extends from a bottom-facing surface of the second panel for supporting the tank in a spaced-apart relation from a nearby surface. The support further defines an upward-facing pocket for receiving a portion of the heating element. A control system may monitor the storage tank and alert a service provider of operative conditions thereof.

Abstract: A heating control system for controlling heating of a fluid within an associated fluid vessel includes a first sensor responsive to a low fluid level in the fluid vessel and a second sensor responsive to a temperature of the fluid within the fluid vessel. The heating control system also includes a control circuit electrically connected with the first sensor and the second sensor to control electrical power to a heating unit for heating the fluid within the fluid vessel. The control circuit allows electrical power to be connected to the heating unit upon a first predetermined condition of the first sensor and a first predetermined condition of the second sensor. The control circuit disconnects power to the heating unit upon either a second predetermined condition of the first sensor or a second predetermined condition of the second sensor.

Abstract: A water heater system including two or more water storage tanks plumbed in series, parallel or a combination thereof and methods of controlling said water heater systems. The water heater systems may include one or more mixing valves and one or more temperature sensors for providing water at a desired temperature.

Abstract: An on-demand, closed-loop fluid heating system with a control system for providing fluid on-demand at consistent desired precise temperatures. The closed loop assembly may include a heating system, an air separation chamber with an air vent valve, a circulation pump, a small fluid accumulation tank, and plumbing forming the closed loop. Various sensors related to flow and temperature of fluids provide input to the combined feed forward and feed back temperature control system, such as a Programmable Logic Controller that precisely adjusts intermittently outgoing fluid temperature by immediately controlling the amount of heating to the fluid at precisely near usage temperature. Output from the control system can regulate various aspects of the system. A check valve in the closed loop between the system inlet and the system outlet avoids incoming fluid from being mixed with heated outlet fluid.

Abstract: A water heating assembly for a refrigerator appliance is provided. The water heating assembly includes a vacuum insulated container and a heating element received within a heated chamber of the vacuum insulated container for heating water therein. An inlet conduit is configured for directing water into the heated chamber, and an outlet conduit is configured for directing heated water out of the heated chamber.

Abstract: An electric water heater having a filtering device includes an electric water heating device and a filtering device. The filtering device communicates with the electric water heating device, and includes a shell having at least an accommodating area, an inlet connecting to one end of the shell and communicating with the accommodating area, an outlet connecting to the other end of the shell and communicating with the electric water heating device and the accommodating area, a porous magnetic resin film located inside the accommodating area, and a calcium sulfite filter membrane in the accommodating area and between the outlet and the porous magnetic resin film. With the combination of the porous magnetic resin film and the calcium sulfite filter membrane respectively for the absorption of metallic impurities in water and chlorine removal, the scales can be avoided from generating after the electric water heating device heats the water.

Abstract: A water heating system is provided. The water heating system includes an inlet connectable to a supply of untreated water, supply and return lines connectable to a point-of-use water treatment system, and an output for dispensing a supply of treated and optionally heated water. An internal heating element is adapted to heat the treated water to one of a plurality of pre-selected temperature settings. Temperature control can be achieved by cycling the power applied to the heating element and/or controlling the flow rate of treated water through the heating element. The water heating system includes additional improvements in electrical compatibility, energy consumption, and remote failure detection.

Abstract: A fluid preheater (10) includes a body (12) having an interior wall (28) defining a chamber (42) and having an inlet (50) and an outlet (52). One or more heaters (18) are disposed in the wall (28), but not exposed to the chamber (42). The chamber (42) has one or more baffles that cause turbulence in the flow of fluid through the chamber (42) from the inlet (50) to the outlet (52) in order to increase the exposure of the fluid to heat from the heaters (18, 64).

Abstract: An electric water heater having a filtering device includes an electric water heating device and a filtering device. The filtering device communicates with the electric water heating device, and includes a shell having at least an accommodating area, an inlet connecting to one end of the shell and communicating with the accommodating area, an outlet connecting to the other end of the shell and communicating with the electric water heating device and the accommodating area, a porous magnetic resin film located inside the accommodating area, and a calcium sulfite filter membrane in the accommodating area and between the outlet and the porous magnetic resin film. With the combination of the porous magnetic resin film and the calcium sulfite filter membrane respectively for the absorption of metallic impurities in water and chlorine removal, the scales can be avoided from generating after the electric water heating device heats the water.

Abstract: Disclosed is a water heating system with a hot water storage tank having a first port located in a lower region of the tank and a second port located in an upper region of the tank; a water flow pathway extending from the first port through a heating chamber to the second port; electrical heating means (for example a heating element) arranged to heat water within the heating chamber, when required, so that water within the water heating system will circulate from the first port to the second port through the heating chamber, by convection, when water is not drawn from the water heating system; a water supply outlet communicating with the water flow pathway intermediate the heating chamber and the second port; and a check valve arranged to restrict the flow of water out of the hot water storage tank by way of the second port.

Abstract: A heating device for an electric water heater, especially a heating device that can effectively recover waste heat, the device includes a secondary water box provided on one of the top and the bottom sides of a flat type main water box, the secondary water box is communicated with the main water box to guide water of the secondary water box into the main water box; the main and the secondary water boxes are provided therebetween with a laminate electric heating board of which the top and the bottom sides are clung respectively to the secondary water box and the main water box, an effect of preheating the water in the secondary water box is obtained to thereby effectively use the waste heat for saving energy source, and heating efficiency can be increased.

Abstract: A device for dispensing water includes a water tank for keeping water at a tank temperature higher than the desired temperature of the water to be dispensed. A tank inlet is connected to a source of water. device includes a mixing device with a first water supply, a second water supply and a water discharge connected to a dispensing point. The first water supply is connected to a hot water pipe originating from a central hot water source arranged at a distance, and the second water supply is connected to a tank outlet. The mixing device includes a control device which is designed to mix water from the first and second water supply in such a manner that the water to be dispensed substantially has a desired temperature.

Abstract: An on demand tankless water heater system that is capable of quickly delivering water within a desired temperature range. The tankless water heater provides a hybrid heating method that contains a primary heating system and a secondary heating system disposed in a buffer tank that cooperate to facilitate control of output water temperature during water usage. A pressure differential switch detects low flow demand and allows the secondary heating system to provide immediate heating to the water. This secondary heating system provides a faster temperature response and fine tuning of output water temperature.

Abstract: A water heating control and storage system, including an insulated tank for containing water to be heated. The tank has at least two heating elements, including an upper heating element and a lower heating element. An operation control device receives a demand response signal and enables each element to independently heat water for usage. A method for controlling a water heating storage system includes providing an insulated tank for containing water to be heated; providing an upper heating element with a thermostat and thermal limiting device and a lower heating element with a thermostat and thermal limiting device to heat upper and lower portions of water inside the tank; and providing a pair of switches for enabling each of the heating elements to independently heat upper and lower portions of the water for usage.

Abstract: A water heater (10) is suitable for point-of-use applications. The water heater includes a tank housing (12) and one or more electrically powered heating elements (18). A water inlet line (20) and a water outlet line (24) may be molded as a unitary structure with the tank housing. The water outlet line includes a lower port (68) and an upper port (70) for mixing water in the outlet line. The housing may be mounted such that its axis is either vertical or horizontal.

Abstract: An on-demand, closed-loop fluid heating system with a control system for providing fluid on-demand at consistent desired precise temperatures. The closed loop assembly may include a heating system, an air separation chamber with an air vent valve, a circulation pump, a small fluid accumulation tank, and plumbing forming the closed loop. Various sensors related to flow and temperature of fluids provide input to the combined feed forward and feed back temperature control system, such as a Programmable Logic Controller that precisely adjusts intermittently outgoing fluid temperature by immediately controlling the amount of heating to the fluid at precisely near usage temperature. Output from the control system can regulate various aspects of the system. A check valve in the closed loop between the system inlet and the system outlet avoids incoming fluid from being mixed with heated outlet fluid.

Abstract: The invention relates to a line feedthrough through a heating kettle cover of a heating kettle of a reducing agent tank. At least one line penetrates an opening of the heating kettle cover and is sealed by means of a sealing element. It is provided that the sealing element is configured as an elastic plug sealing stopper, which is inserted in a holder associated with the heating kettle cover in a sealing manner.

Abstract: A representatively pumpless water heater system has an instantaneous water heater coupled in series with a storage water heater by piping circuitry incorporating a fixed (and selectively fixed) bypass useable to route pressurized incoming cold water sequentially through the instantaneous and storage type heaters. The fixed bypass can also route pressurized incoming cold water to mix with the heated water exiting the instantaneous heater for delivery to the storage heater.

Abstract: A hot water supply device of a cold/hot water dispenser capable of preventing hot water kept in a hot water storage unit from flowing backward to thus minimize a heat loss and preventing water kept in the hot water storage unit from being expanded to increase pressure to thus stably guide discharging of hot water is provided. The hot water supply device of a cold/hot water dispenser includes: a hot water storage unit allowing water to be introduced thereto and discharged therefrom and having a heating device for heating water; an outlet cock discharging hot water kept in the hot water storage unit to the outside; and an auxiliary storage unit storing water flowing from the hot water storage unit when the water stored in the hot water storage unit is heated according to an operation of a heating device to exceed the capacity of the hot water storage unit.

Abstract: An attachment tool for draining water from a water heater during replacement of the heating element includes an annular mounting member that has an elongate channel attached thereto. The channel has a pair of aligned notches formed proximate a distal end of channel for supporting a bucket or other container. The mounting member is disposed peripherally about the tapping of a heating element receptacle. When the heating element is removed from the receptacle, water drains from the receptacle and through the channel into the bucket supported thereon.

Abstract: In a hot water supply system, a heat exchanger transfers heat from a heating device to inflow water to supply the inflow water at a user-set temperature. A flow sensor measures a flow rate of inflow water. A water tank stores outflow water discharged from the heat exchanger. A first temperature sensor, installed on an inlet pipe through which the inflow water flows, measures a temperature of the inflow water. A second temperature sensor, installed on an outlet pipe through which the outflow water flows, measures a temperature of the outflow water discharged from the heat exchanger. A controller includes an input unit to receive input from a user, wherein the controller controls an operation of the heating device based on at least one of: (1) comparison between the user-set temperature and the temperature of the outflow water; (2) variation in the flow rate; or (3) any combination thereof.

Abstract: Disclosed are a heater and hot water supplying device having the same. A temperature stabilizing unit is formed by arranging an inlet and an outlet of a water container close to each other. Under this configuration, cool water introduced into a water path of the water container via the inlet serves to cool hot water to be discharged via the outlet of the water container. This may prevent the hot water from being overheated to temperature more than a preset value. As a result, this may prevent damage of thermal lines of a heating element, due to overheating, the overheating occurring as water inside the water container is overheated.

Abstract: A liquid dispenser includes an exterior surface and an interior surface. The interior surface encloses a volume that tapers outwardly in a downward direction so that any horizontal cross-section of the volume fits inside each horizontal cross-section below it from a full to an empty level of the dispenser. The interior surface also includes a projection oriented opposite the exterior surface and configured to limit a motion of solids within the dispenser. The structure so provided enables the solid, e.g., a frozen liquid, to slide to the heated, bottom portion of the dispenser as liquid is drawn from the dispenser thus providing faster melting.

Abstract: The concepts relate to reducing energy loss associated with hot water systems. One example includes a cold water line and a hot water line and an end use fixture in fluid flowing relation with the cold and hot water lines and configured to control water flow therefrom. This example also includes a water heater having an intake or inlet in fluid flowing relation to the cold water line and an outlet in fluid flowing relation to the hot water line. The example includes an automatic hot water recovery apparatus positioned in fluid flowing relation to the cold water line proximate to the water heater, the automatic hot water recovery apparatus configured to draw hot water back into the water heater from the hot water line subsequent to hot water usage at the end use fixture.

Abstract: An energy saving device is mounted on a heating apparatus. The energy saving device includes a base, a cooling plate, an expandable member, and an upper lid. The base has a cooling trough. A hole and a first through hole are formed in an inner wall of the cooling trough. The expandable member has a trough facing and sealing the cooling plate. When the energy saving device is activated, the expandable member will shrink and suck the hot water in the heating apparatus to the trough and the cooling trough will be filled with cold water to cool the hot water in the trough by the cooling plate, preventing the expandable member from aging and chap and enhancing the capacity of the trough to store the hot water.

Abstract: A heating control system for controlling heating of a fluid contained in a fluid vessel using a fluid level sensor as a heating control element. The system includes a control circuit coupled with an electrical power system of a heating unit. The control circuit includes switching elements that are selectively activated or deactivated responsive to a low fluid level in a corresponding fluid vessel such that heating of the fluid is terminated as the level of fluid becomes less than a predetermined value.

Abstract: In a boiler (6) having a shell (8) enclosing a space (11) and an inlet (12) for letting water into the shell space (11), the shell space (11) has two separate sections (16, 21), wherein a first section (16) is located such as to receive a supply of fresh water to the boiler (6), and wherein a second section (21) is located such as to receive water from the first section (16) when overflow of the first section (16) takes place under the influence of a continuous supply of fresh water. A steam generating process takes place in the second section (21). Due to the fact that the second section (21) is only indirectly filled with water, it is possible to have an undisturbed process. In particular, the water may be heated in the first section (16) before reaching the second section (21). The first section (16) may comprise an inner space of a container (15) which is arranged inside the shell (8), for example.

Abstract: A storage tank and method for monitoring thereof is provided. The tank includes a first panel that defines a mounting surface for carrying a heating element. The heating element extends into the tank for heating liquids stowed therein. A sidewall interconnects the first panel and a spaced-apart second panel. A support extends from a bottom-facing surface of the second panel for supporting the tank in a spaced-apart relation from a nearby surface. The support further defines an upward-facing pocket for receiving a portion of the heating element. A control system may monitor the storage tank and alert a service provider of operative conditions thereof.

Abstract: A heat recovery device particularly for association downstream of devices suitable to heat water. The device is constituted by a tank provided with an inlet for recovering warm water from domestic drains and an outlet for draining toward the sewer. The tank has a set of tubes for water which arrives from the mains and is thus heated before being fed to devices such as a boiler, water heater, et cetera. The device therefore allows savings in water heating for domestic or industrial uses.

Abstract: A water heater system includes an intermediate water heater having a storage tank in which water is initially received at an initial temperature. The intermediate water heater is controllable to heat the water to an intermediate temperature that is higher than the initial temperature. The water heater system also includes at least one point-of-use water heater coupled to the intermediate water heater for receiving the water from the intermediate water heater after the water has been heated to the intermediate temperature. The point-of-use heater is controllable to heat the received water to a point-of-use temperature, the point-of-use temperature being higher than the intermediate temperature.

Abstract: A system and device for spray painting using a flow of pressurised carrier fluid comprises a central source of the carrier fluid and one or more local elements for heating the fluid close to the point of use.

Abstract: A water heater is provided which includes a heat exchange unit including heat exchange pipes filled with a phase change material. The phase change material has a freezing/melting temperature from about 58° C. to about 62° C. The water heater provides significantly greater thermal energy storage than conventional water heaters, and the excess heating capacity may be used for residential heating applications by using the water heater in combination with a liquid to air heat exchanger.

Abstract: A tank system can provide a predetermined cold start volume (VKS) of an operating liquid required by a liquid consumer after a cold start. The tank system can provide a urea solution to an SCR catalytic converter. The tank system includes a main tank with a filling opening through which the interior of the main tank can be filled with operating liquid. To melt a predetermined volume of the frozen liquid in a fast, efficient and complete manner, a melting device is provided. The melting device includes a melt tank which encloses a melting space and which comprises an inlet opening through which the melting space can be filled with the operating liquid from the interior of the main tank. The melting device includes a cold start heater for melting frozen liquid in the melting space. The melting space is at least as large as the cold start volume (VKS) and is smaller than the interior of the main tank.

Abstract: A combination water dispenser with heating mechanism including a reservoir having an automatic inlet means for replenishing water into the reservoir and a controlled water outlet means for dispensing water from the reservoir. The reservoir includes a reservoir heating element which has an applied electric current for heating the water. An indicating means for indicating the activation and deactivation of the reservoir heating element is included on the dispenser. A user actuated means adapted to simultaneously activate the reservoir heating element and the indicating means is positioned on the dispenser. A temperature regulating means responsive to the temperature of the water monitors the temperature of the water during the heating of the water. The dispenser includes an automatic deactivation means adapted to deactivate the reservoir heating element upon receiving a signal from the temperature regulating means.