Abstract: A water heater has one or more heating elements and an internal wall that causes an increased rate of heating within a sub-volume within the water heater tank. Water from the sub-volume is directed to the tank outlet.

Abstract: A water heater system includes a water tank and a flow-through heating assembly. The water tank contains heated water. The flow-through heating assembly may extend into the water tank and heats water as water is passed through an interior channel of the flow-through heating assembly. In one embodiment, the flow through heater assembly is a thermosiphonic heater having a hollow body and a heating element extending therein such that an annular recess is defined between an interior surface of the hollow body and the external surface of the heating element.

Abstract: A heating unit for heating fluid is described having at least one electrical resistance heating element on an outer surface of a tube. At least one indexed groove is provided around a surface of the tube allowing for at least one retention clip to hold the electrical resistance heating element. A heating chamber is also provided to enclose a portion of the tube and to provide a flow channel therebetween. The heating chamber includes an optical sensor to detect overheating of the at least one electrical resistance heating element. Fluid is heated by flowing over the surface of the at least one electrical resistance heating element and through the tube.

Abstract: The present invention relates to an instantaneous water heater having a guide part. The instantaneous water heater having the guide part is configured to allow direct water to stay around a heater for a long time, so that direct water is efficiently heated into hot water at a preset temperature desired by a user.

Abstract: The invention relates to a hot water heater that includes a tank, one or more heating elements, one or more thermostats and one or more heater exchanger tubes. The tank has a water outlet and one or more water inlets. The one or more heating elements extend within the tank. The one or more thermostats function to control the energy applied to the one or more heating elements. The one or more heater exchanger tubes are positioned within the tank. Each heater exchanger tube has a first end with a first opening and a second end with a second opening and defines a channel between the two openings. The second opening in the channel opens into the tank. Each heater exchanger tube surrounds at least a portion of one heating element. The water inlet includes an opening into the heater exchanger tube for water to enter the heater exchanger tube.

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 radiant heating system comprising a substantially hollow housing having detachable baffle plates internally positioned within the housing. The housing has an inlet and outlet for a flow of coolant to enter into and leave the housing, and a top plate sealing the upper surface of the housing has openings defined therein for insertion of heating elements to project into the housing and be in direct contact with the coolant to heat it. The inlet and the outlet are interconnected with piping to form a closed fluid flow circuit. Two or more baffle plates are used to increase turbulence of the coolant within the housing as it flows through, and temporarily keep coolant in the housing longer to heat it.

Abstract: A heat transfer system comprises a plurality of cells, a plurality of heating elements, and a controller for independently controlling the plurality of heating elements. The heat transfer system is capable of maintaining a fluid temperature within a predetermined range. A second pump pumps fluid through a heat exchanger in operative relationship with the blower upon a call for heat.

Abstract: A beverage maker includes a boiler for containing and heating water and a normally opened thermostat having a sensing member for sensing a temperature of the water, wherein the sensing member is located at a certain distance with respect to a water inlet of the boiler. When the water is heated, and the temperature of the water exceeds a set point of the thermostat, the thermostat closes. As a result, a pumping action is started, where hot water is forced to flow out of the boiler, and where cold water is forced to flow into the boiler. When a front of the cold water reaches the sensing member of the thermostat, the thermostat is triggered to open again, and the pumping action is terminated. By means of the thermostat, the quantity of hot water that is used for the purpose of making a beverage is accurately controlled.

Abstract: A heated water reservoir for use as a heated water dispenser, in conjunction with a beverage dispenser or for other uses. The heated water reservoir (5) includes a baffle (20) which communicates with an outlet port (7) positioned along the reservoir and an upper portion of the reservoir. In the reservoir a quantity of water is retained in a heated condition with an upper portion of the reservoir containing generally heated water of a higher temperature. An upper edge (35) of the baffle is positioned relative to the upper portion of the heated water reservoir such that passage of water from the reservoir into a cavity (22) defined, at least in part, by the baffle facilitates flow of water over the upper edge and into the outlet port. In this manner, water having a higher temperature is dispensed from the reservoir.

Abstract: A thermal storage unit having at least one conduit around which a cast is made is provided. The thermal storage unit uses conventional piping or tubing to create conduits that economically maximize the surface area of flow in contact with the thermal mass by proving multiple passes for the fluid through the cast. This enables the thermal storage unit to economically provide heat storage as well as effective heat delivery and pressure containment for a fluid flowing through the conduit.

Abstract: A vertical water heater includes a machine body installed therein with plural quartz heating tubes respectively composed of a quartz external tube having its opposite ends sealed and a quartz internal tube positioned in the quartz external tube. Each quartz internal tube is provided with a remote-infrared-ray heating member in the interior and has one end connected with an electrode terminal. Each quartz external tube has its lower wall bored with plural water intakes 212 and its upper wall bored with vapor vents. The machine body has its bottom provided with a water inlet and a water outlet and its topside bored with an exhaust vent having a pressure release valve assembled thereon. The vertical water heater carries out heat conduction by vapor and by light and heat radiation, impossible to produce water stains and able to economize energy.

Abstract: An electric water heater includes a container, a cold water inlet pipe, a hot water outlet pipe, and a separation board. The separation board includes a first vertical plate having a first end connected to an upper portion of the container, a separation plate having a first end connected to a second end of the first vertical plate, and a second vertical plate having a first end connected to a second end of the separation plate and a second end connected to a lower portion of the container. Thus, the separation board divides the inside of the container into a heat storage space and an instantaneously heating space, so that the hot water from the hot water outlet pipe is kept at a preset temperature.

Abstract: A heating system for heating fluid media including a carrier unit, a heating unit arranged on the carrier unit and a heat transfer element arranged on the carrier unit and includes a material which is a good conductor of heat, which heat transfer element has a first mounting portion for mounting a first safety device which responds at a first response temperature and a second mounting portion for mounting a second safety device which responds at a second response temperature which is lower than the first response temperature, which heat transfer element has a first temperature pickup portion which is in direct heat-conducting contact with the heating unit and the first safety device. The heat transfer element has a second temperature pickup portion is spatially separate from the first temperature pickup portion and in heat-conducting contact with the medium to be heated and the second safety device.

Abstract: The invention describes an electrical heating facility for the heating of liquid, in particular of washing liquid of a window washing facility, in a motor vehicle, comprising a metallic housing (2) with a first end (3) for immersion in the liquid to be heated and a second end (4) with an electrical connection terminal (5); at least one heating element (11) that is arranged in the housing (2); and at least one metallic heat conducting element (20) for conducting heat away from the housing (2). The invention provides the heat conducting element (2) as a stamped-out heat conducting plate comprising a slit that is used to slide it onto the housing (2). Moreover, the invention describes a liquid container with a heating facility, in which a heat contact surface of the heat conducting element (20) of the heating facility (1) rests against an intake fitting (31) that protrudes into the container.

Abstract: A manifold for supplying hot water to a heater such as a towel holder has a tubular outer body for mounting in a generally vertical disposition. The upper end of the outer body is closed off and an inner tube is mounted within the outer body, to communicate therewith at or adjacent the upper end. First and second connectors for first and second external pipes leading to the heater communicate with the interior of the outer body. An electrically-powered immersion heater is disposed within the inner tube and when energised raises the temperature of water in the inner tube thereby promoting convection circulation of hot water through a heater connected to the manifold by the first and second external pipes.

Abstract: A manifold for supplying hot water to a heater such as a towel holder has a tubular outer body for mounting in a generally vertical disposition. The upper end of the outer body is closed off and an inner tube is mounted within the outer body, to communicate therewith at or adjacent the upper end. First and second connectors for first and second external pipes leading to the heater communicate with the interior of the outer body. An electrically-powered immersion heater is disposed within the inner tube and when energised raises the temperature of water in the inner tube thereby promoting convection circulation of hot water through a heater connected to the manifold by the first and second external pipes.

Abstract: An electric water heater has a vertically disposed tank with a cold water inlet, a hot water outlet and at least one horizontally disposed elongated immersion heating element extending into the region of the tank between an upper region and a lower region. Each heating element is surrounded by an elongated closed end tubular sleeve having a plurality of lower openings distributed along the length of the sleeve below the heating element therein and a plurality of upper opening distributed along the length of the sleeve above the heating element. The total area of the upper openings is greater than the area of the lower openings to generate upon operation of the heating element an upwardly directed transverse flow of water in a direction from the lower openings to the upper openings along the entire length of the sleeve. A thermosiphon bypass check valve connected between the cold water inlet and the hot water outlet having a bypass conduit with one or more constrictions and a closure member.

Abstract: Scale buildup on the heating element of an electric water heater or industrial process boiler is minimized by directing one or more jets of incoming water or other fluid onto the heating element. Optionally the fluid is pretreated by the induced electric field of an electronic descaling unit. The pretreated water produces soft scale that can easily be removed by a jet of fluid. Preferably a series of fluid jets, from a perforated pipe, are directed at the electric heating element. Also provided is a deflection panel to redirect the jets of water back toward the heating element, thus improving the scrubbing action for removing accumulating scale.

Abstract: A hot water dispensing system comprises a one-piece plastic tank having a main heating chamber, an expansion chamber, and an air collection chamber. The air collection chamber is disposed generally below the expansion chamber and alongside the main heating chamber. The main heating chamber is in fluid communication with the expansion chamber and the air collection chamber. The hot water dispensing system also includes a temperature control system having a heating element, a metal temperature sensing bracket, and a thermostat. The heating element is disposed within the plastic tank and connected to a metal temperature sensing bracket disposed outside the tank. The excellent conductive properties of a metal sheath that connects the metal temperature sensing bracket to the heating element allow the metal temperature sensing bracket to simulate changes in the temperature of water in the tank.

Abstract: The present invention presents a heat dissipating system for protecting a hot water tank dispenser from damage during a dry operation. The dispenser includes a hot water tank with a plastic wall. The hot water tank contains a heating element extending through a plurality of bushings mounted to the plastic wall. The heat dissipating system comprises at least one heat dissipation plate mounted to the plastic wall by the bushing and isolated from the heating element by the bushing.

Abstract: A thermal physical vapor deposition electroluminescent source includes a housing defining an enclosure having side walls and a bottom wall, the enclosure receiving solid organic electroluminescent material which can be vaporized, and the width of the housing having a dimension wh; and the housing has a conductive portion defining a vapor efflux aperture slit having a width ws for permitting vaporized electroluminescent materials to pass through the slit onto a surface of a substrate.

Abstract: A hot water heater of a low profile, box-shaped design, with the height and width remaining generally constant, and the length being dependent on the volumetric capacity desired for the water heater. The water heater is configured for horizontal configuration or vertical mounting and includes a cold water inlet for allowing input of cold water into a lower compartment. A baffle plate divides the lower compartment from an upper compartment, and water from the cold water inlet flows through a baffle opening, or delivery outlet, into the upper compartment. While in the lower compartment, the water is subjected to heating by at least one heating element, which serves to pre-heat the water. As the water flows to the upper compartment, it is heated further by at least one additional heating element located in the upper compartment.

Abstract: A sanitary fluid heater includes a corrosion resistant stainless steel housing, a stainless steel cap securely positioned over an open end of the housing, and a heating element disposed within the housing. The cap defines an internal cavity which includes an internal wall having an aperture therethrough for receiving an end of the heating element which extends beyond the open end of the housing to form a corrosion resistant hermetic seal over the open end of the housing. Fluid contacting inner surfaces of the housing and the cap are polished smooth. In one embodiment, inlet and outlet fittings are attached to the housing to define, respectively, a fluid inlet and a fluid outlet. The inlet and outlet each have a sanitary fitting at an end thereof which faces a corresponding sanitary fitting of a respective fluid inlet or fluid outlet line. Gaskets placed between facing sanitary fittings and clamps form fluid-tight connections between the facing sanitary fittings.

Abstract: An improvement in electrical elements for a water heater includes a mass attached to the element for reducing the deposition of hard water scale on element surfaces, particularly in the return bend areas. In one embodiment, a flow accelerator tube encloses the element. The flow accelerator tube has an inlet at one end and an outlet at a higher elevation at the opposite end. Water is induced to flow through the tube because of temperature change. In another embodiment, a solid mass with high surface area encloses the return bend areas to increase heat transfer at a lower temperature to reduce scaling and increase element life.

Abstract: An electric water heater including a control unit, and a heating unit having a water container and an electric heating coil inside the water container and being controlled by a control unit, wherein a perforated heat-conductive cylinder is mounted inside the water container around the electric heating coil to separate the inside space of the water container into a heating chamber on the inside and a pre-heating chamber on the outside; a perforated heat-conductive collar is mounted around the cylinder to separate the pre-heating chamber into a primary pre-heating chamber at the bottom and a secondary pre-heating chamber at the top; the solid-state variable resistor of the control unit has a heat sink attached to a water accumulation chamber of the cold water pipe which guides cold water to the primary pre-heating chamber, which heat sink transmitting heat from the solid-state variable resistor to cold water in the water accumulation chamber.

Abstract: A water tank for heating water preferably in a vending machine for beverages comprises a feed-water inlet (2), a hot water outlet (3), as well as a heating member (4) for heating the water. The water tank (1) is divided into a heating section (21) including the hot water outlet (3) and the heating member (4), as well as a lime-precipitating section (22) including the feed-water inlet (2), said tank being divided by means of a partition (6). This partition (6) extends from one side (7) of the water tank immediately adjacent the surface of the water at maximum water level (10) and obliquely downwards towards the opposite side (12) of said water tank. Then the partition extends at a distance from the tank wall (12) downwards to the immediate vicinity of the bottom (14) of said water tank, whereby the heating section (21) is placed below the oblique portion (11) of the partition (6).

Abstract: An electric immersion water heater comprises a vessel with a heating element having cold tail ends extending individually through a side wall of the vessel. Temperature sensing elements sense temperature levels of an outer wall of the heating element outwardly of the vessel and are arranged to disconnect power to the element upon either a boil condition within the vessel occurring or upon sensing an elevated temperature indicative of dry or partially dry operation within the vessel. The heating element further including a jacket defining a space around the outer wall of a core part of the heating element within the vessel adjacent the vessel wall and arranged to fill with steam upon a boil condition occurring in the vessel during normal operation.

Abstract: An electric water heater has a vertically disposed tank with a cold water inlet, a hot water outlet and at least one horizontally disposed elongated immersion heating element extending into the region of the tank between an upper region and a lower region. Each heating element is surrounded by an elongated closed end tubular sleeve having a plurality of lower openings distributed along the length of the sleeve below the heating element therein and a plurality of upper opening distributed along the length of the sleeve above the heating element. The total area of the upper openings is greater than the area of the lower openings to generate upon operation of the heating element an upwardly directed transverse flow of water in a direction from the lower openings to the upper openings along the entire length of the sleeve. A thermosiphon bypass check valve connected between the cold water inlet and the hot water outlet having a bypass conduit with one or more constrictions and a closure member.