Abstract: An active humidifier includes a disposable cartridge provided with a humidification chamber adapted to contain water to be heated for air humidification, with an inlet mouth for air introduced by a ventilation device and with an outlet mouth for conditioned air to a patient, the cartridge includes a disposable heating element directly inserted inside the humidification chamber close to the bottom and distanced therefrom, immersed in the water and lapped on all sides, the cartridge also includes an electrical connector for the electrical connection of the disposable heating element, and the disposable heating element includes an electrical resistor and in the humidification chamber is a sealed casing entirely made of plastic material.

Abstract: An assembled media line including a media line, at least one first line connector and at least one first sheathing system, where the media line has a first end and a second end and where the at least one line connector is connected to one of the first and the second end of the media line and the at least one first sheathing system at least partially surrounds the media line, which media line is not dimensionally stable. A contour shaping cap device including at least two parts which together build, at least in sections, a media line surrounding sheath for contour shaping the media line, where the at least two parts are generally bending resistant and have elements for connecting them to one another.

Abstract: The invention relates to an electrical heating apparatus for arranging under a table, the heating apparatus comprising a housing, at least one electrically powered heat source arranged inside said housing, and heat shielding means comprised in the housing and having a plurality of through holes configured for allowing heat radiation from the electrically powered heat source to pass, wherein the heat shielding means comprises a layer of a material with a thermal conductivity lower than 2 [W·m?1·K?1], and wherein the inner surface of the heat shielding means is applied with a layer of heat radiation reflecting material configured for reflecting the heat radiated from the heat source back against the inner part of the housing.

Abstract: A control pin for controlling the flow of molten metal through a down spout in a casting process is provided. The control pin comprises a body having an elongated shape, a lower portion insertable in the down spout, and a terminal end, opposite the lower portion. The body includes a central core, preferably a hollow tube or a rod of alumina or mullite; a heating element disposed around the central core, and an intermediate layer surrounding the central core and encasing the heating element, the intermediate layer being made of a solidified ceramic putty. Finally, an outer shell, preferably made of woven fiber reinforcing fabric in a matrix of ceramic, surrounds the intermediate layer.

Abstract: A fluid line including a pipe, a connector having a pipe connection, which is arranged on one end of the pipe, and an opening, and a heater arranged in an interior of the pipe. The heater includes a heater rod arranged to extend from the pipe into the pipe connection of the connector and out of the connector through the opening.

Abstract: A heater is provided with a heater core having a source of thermal energy in a heat exchange relationship with a heat exchanger. A fan moves air through the heater core from an air inlet to an air outlet. The heater core is thermally insulated by an air jacket from an exterior case.

Abstract: The metal tank portion of an electric water heater is protected against corrosion utilizing a corrosion protection system that detects a voltage potential between the sheath portion of a tank water-immersed electric heating element and the tank. In one embodiment of the corrosion protection system the sensed sheath/tank potential is utilized to enable a user of the water heater to accurately gauge the necessity of replacing a sacrificial anode extending into the tank. In another corrosion protection system, the sensed sheath/tank potential is utilized to provide impressed current cathodic protection of the tank and also to prevent dry firing of the electric water heater.

Abstract: An electrical heater for heating liquid containing at least one scale forming element and methods for fabrication and use of the heater are described. The electrical heater comprises a heating unit including electrical resistance heating material, and a heat conducting sheath disposed over at least a portion of the heating unit. The heater also includes a pair of terminal ends extending from the electrical resistance heating material for connecting the heating unit to an external source of electric power. The heat conducting sheath includes an electrically insulating compound that features anisotropic heat conductivity with enhanced transparency to infra-red radiation along axes normal to a surface of said electrical resistance heating material.

Abstract: This invention relates to an apparatus to efficiently and rapidly heat any liquid or fuel by providing large heat distribution. This apparatus has innumerable applications for efficiently heating water/fuel, using limited resources and providing cost-savings to private and commercial entities.

Abstract: An immersion heater capable of completely avoiding a situation where an outer circumferential border of a spiral heating element is pressed to an inner wall of a protecting tube, and preventing disconnection due to contact between adjacent portions of the heating element. In the immersion heater, one edge portion of a metal strip heating element (8) is inserted into, and held in a spiral groove (7) to form a spiral heating part (9). Cylindrical-body supporting members (11) are provided and each has a diameter smaller than an inner diameter of the ceramic bottom protecting tube (2) and larger than an outer diameter of the spiral heating part. The cylindrical-body supporting members are fitted into a hollow portion of the insulating cylindrical body (6) and are arranged in openings at a fore-end and a back-end of the insulating cylindrical body, respectively.

Abstract: A portable heater (100) is provided. The portable heater (100) comprises an air inlet (108) and an air outlet (118). The portable heater (100) also comprises a heating chamber (115) including one or more heating elements (230). A preheating chamber (114) is provided that is located between the air inlet (108) and a heating chamber inlet (116).

Abstract: An electrical heating apparatus has: a fin brazed on at least one of a main body upper wall and a main body lower wall of a tube; an insertion unit having an electro-heat-generating element pressure-welded to a wall of one of the main body upper wall and the main body lower wall; and an edge part projecting in the width direction from each of main body vertical walls to form an edge space. The edge space is formed so as to be continuous with the insertion space and is smaller in thickness dimension than the thickness dimension of the insertion unit. The edge part has an edge part upper wall, an edge part lower wall, and an edge part vertical wall disposed in a concave shape.

Abstract: An electrical heatable fluid line includes an inner cross sectional area which surrounds a medium conducting duct, a heating conductor arrangement which is arranged in a thermally conductive connection with the inner cross sectional area, and an outer cross sectional area which surrounds the heating conductor arrangement between the inner cross sectional area and the outer cross sectional area an intermediate layer which separates the heating conductor arrangement from the outer cross sectional area and which mechanically has a lower stability than the inner cross sectional area and the outer cross sectional area.

Abstract: The present invention is to provide an immersion heater capable of completely avoiding a situation where an outer circumference border of a spiral heating element is pressed to an inner wall of a protecting tube, and preventing disconnection due to contact between adjacent portions of the heating element. In the immersion heater of the invention, a metal heating element 8 is strip, and one edge portion of this strip heating element 8 is inserted into, and held in the spiral groove 7 to form a spiral heating part 9. Cylindrical-body supporting members 11 that each have a diameter smaller than an inner diameter of the ceramic bottom protecting tube 2 and larger than an outer diameter of the spiral heating part 9 and are fitted into a hollow portion of the insulating cylindrical body 6 are arranged in openings at a fore-end and a back-end of the insulating cylindrical body 6, respectively.

Abstract: A cartridge heater, especially a compressed cartridge heater (1) has at least one heating coil (8, 9), which is arranged exposed in a metallic tubular body (2) and is embedded in a granulated insulating material. The ends of heating coil portions (8, 9) are provided with terminals (7) projecting from the tubular body (2). To make it possible to manufacture such a cartridge heater with minimal effort in terms of labor and material, a flat insulating plate (10) coordinated in its width with the internal diameter of the tubular body (2) is provided as the carrier. The heating coils (8, 9) extend along the two flat sides of the insulating plate (10) and the two heating coils (8, 9) are connected to one another by a coil section (12, 12?), which is led around a deflecting edge (27) of the insulating plate (10).

Abstract: An electric heating element with radiant tube comprising a radiation pipe (1) and an electric heating element (2, 3) contained in said pipe, wherein the heating element has legs that run to and fro in the pipe, and wherein the heating element is connected at one end of the pipe close to a furnace wall with electric power outlets through which electric current is fed to the element, wherein the element is supported in the pipe by ceramic discs (9) that are provided with through-penetrating holes through which the legs of the elements extend, and wherein two elements (2, 3) are disposed sequentially in said radiation pipe along its long axis.

Abstract: An electrical resistance heater element has a metal tube containing an electrical resistance coil that is electrically insulated from the metal tube by magnesium oxide powder, the coil being bonded to a conductor pin that protrudes from an open end of the tube. The powder is sealed against moisture by placing at least the open end of the tube within a chamber and immersing the open end within liquid silicone. A gas is pumped into the chamber to pressurize the silicone sufficiently to cause some of it to encroach into the powder through the open end of the tube. The heater element is installed within a heat exchanger with the silicone remaining uncured.

Abstract: An immersion heater comprising temperature elevating components contained within a housing. The housing comprises a thermally conductive, electrically insulating epoxy on an upper portion thereof, and a highly thermally conductive epoxy on a lower portion thereof. The temperature elevating components comprise a heating element in communication with a heat regulating system comprising a thermostat, an electrically conductive bracket, and a thermal cut off fuse. The heating element comprises electrical resistant wire elements which are disposed in the lower portion of the housing and contained within a sheath. A temperature non-regulating portion of the thermostat, which is in communication with the electrically conductive bracket, is contained in the lower portion of the housing, and the temperature regulating component of the thermostat is contained in the upper portion of the housing.

Abstract: A method of supporting vertically hanging electrical resistance elements for heating furnaces or ovens in industrial operations. Each resistance element includes current-conducting legs that extend downward and upward a number of times, and the element includes along its length a number of ceramic discs that are provided with through-holes through which respective element legs extend. The upper part of the element merges with terminals that are connected to a source of electric current. The element is supported by at least one of the uppermost ceramic discs, wherein the uppermost ceramic disc supporting the element is placed in the insulation of the furnace roof above the underside of the roof. The legs of the element are short circuited at a location slightly or somewhat beneath the underside of the furnace roof with the aid of short circuiting plates.

Abstract: A fluid heating system includes a fluid supply conduit, a hot fluid conduit, and a fluid heating tube assembly. The fluid heating tube assembly includes an inlet coupling coupled to the fluid supply conduit, an outlet coupling coupled to the hot fluid conduit, and at least one fluid heating tube coupled between the inlet coupling and the outlet coupling. The at least one fluid heating tube includes a tube formed of heat conducting material, a dielectric coating permanently bonded on an outer surface of the tube, and a resistive layer permanently bonded on the dielectric coating. A power distributor is coupled to the fluid heating tube assembly and coupleable to a power source. A switch is coupled between the power distributor and the fluid heating tube assembly to control current flow from the power distributor to the at least one fluid heating tube.

Abstract: A grip heater has a tubular insulator that is designed to slip over a handlebar and has two interposed pairs of helical recesses. Each pair of helical recesses is formed by two parallel helical grooves and accommodates a heating element; the heating elements can have different resistances to provide differing degrees of heat when selectively connected to a voltage source. Preferably, the pairs of recesses overlap such that the heating elements reside in alternating grooves and cross over each other. The heating elements can be connected to a common ground to allow replacement of existing three-wire grip heaters. When a common ground is employed, the heating elements are preferably isolated where they cross.

Abstract: A space heater with a linear source of infrared radiant energy in heat exchange relationship with a heat exchanger formed of copper or aluminum material. The copper is pretreated to soften the copper and partially blacken the surface thereof. The aluminum is anodized and electrolytically colored dark. The space heater is thermally more efficient than a comparable space heater wherein the copper or aluminum has not been pretreated. The linear source of infrared radiant energy and heat exchanger are mounted in a heater core that is thermally insulated by an air jacket from an exterior case.

Abstract: An apparatus for adjusting temperature variation value correction of an aquarium heating tube and particularly an apparatus that is capable of adjusting temperature variation correction of an aquarium heating tube according to use conditions of the aquarium includes an adjusting dock with a duct extending upwards to house a screw rod. The screw rod has an upper end to fasten to a squared rotary rod which is extended outside an upper lid to couple with a spline round hole formed on a rotary knob. The screw rod has a lower end mating a biased member to accurately adjust the interval of a first electric contact of a movable strip and a second electric contact of an electrode thereby to control electric connection or break. By pulling the rotary knob away from the rotary rod and turning to a correcting temperature variation value, the heated temperature may be coincided with the actual water temperature.

Abstract: An electric heater element, that is injection overmolded with a thermally conductive polymer having a thermal conductivity of at least 3 W/m° K, includes surface enhancements to increase the overall outer surface area of the element that is in contact with a fluid to be heated, thereby enhancing the efficiency of heat transfer into the fluid. The heater element has a solid core having a resistance heating element spirally wound about its outer surface. An outer covering is injection overmolded onto the core sealing the heating element and shielding it from the exterior environment. While the outer covering seals the heating element it also includes surface enhancements such as concentric fins, pins or discs that increase the contact surface area of the outer cover, further enhancing the heat transfer properties of the heating element.

Abstract: A heating element for heating liquids, comprising a heating coil coiled about a central axis. The coil has a first end and a second end lying in a plane substantially parallel to the central axis. The coil is covered with insulation which is covered with a protective sheath. The protective sheath is covered with an aluminum housing provided with a central aperture to increase the surface area of the heating element in contact with the liquid to improve start-up time. The aluminum housing is also provided with an aperture to receive a thermostat. A pressure die having a first portion and a second portion is adapted to receive a spacer between the first and second portions to vary the distance between the first and second portion and allow for the manufacture of heating elements of varying diameters.

Abstract: An improved aquarium heater and particularly an aquarium heater that has a protective device adjacent to an electric heating coil to cut off the electric circuit when the heater is overloaded to prevent the heating coil from continuously heating to avoid risks and hazards includes a glass tube housed a circuit board in an upper section thereof, a heating coil located below the circuit board connecting to the circuit board, a control plug sealed the top opening of the glass tube, and a protective device bridging the heating coil and the circuit board. The protective device cuts off circuit operation when total circuit is overloaded and overheated to ensure safely use of the heater.

Abstract: Heating elements, electrical devices and processes for manufacturing these components are provided. The heating elements and electrical components employ a fibrous support layer, such as a non-woven glass mat, which provides structural support to the relatively thin cross-section of the electrical device or resistance wire when a polymeric layer is applied.

Abstract: Articles are formed from a thermosetting composition based on polybutadiene or polyisoprene resins which are subjected to a high temperature cure step of greater than 250° C. The thermosetting compositions may include fillers such as particulate ceramic fillers and may also include woven webs for improved dimensional stability and decreased brittleness. The formation process of this invention is particularly well suited for making electrical circuit substrates for microwave and digital circuits, typically in the form of the thermosetting composition being laminated on one or both opposed surfaces to metal conductive foil (e.g., copper). The compositions find particular utility for encapsulating and electrically insulating electrical resistance heating elements for use with fluids.

Abstract: The present invention provides a diesel filter system and a fuel heating device comprising a PTC heating element and a rod-shaped heat conductor which is in thermal contact with PTC heating element. The rod-shaped heat conductor comprises at least two tubular parts arranged in parallel. The PTC heating element is located between said at least two tubular parts. The system and device according to the invention is of compact constructional design and can therefore be installed in different kinds. The invention increases the rate of flow and allows for a high heat transfer from the PTC heating element to fuel.

Abstract: A heating element for heating liquids, comprising a heating coil coiled about a central axis. The coil has a first end and a second end lying in a plane substantially parallel to the central axis. The coil is covered with insulation which is covered with a protective sheath. The protective sheath is covered with an aluminum housing provided with a central aperture to increase the surface area of the heating element in contact with the liquid to improve start-up time. The aluminum housing is also provided with an aperture to receive a thermostat. A pressure die having a first portion and a second portion is adapted to receive a spacer between the first and second portions to vary the distance between the first and second portion and allow for the manufacture of heating elements of varying diameters.

Abstract: Various components of thermal systems are shown molded within a polymer composite sheath, including heaters, sensors, and control circuits. The use of transfer and compression molding allows for the use of thermoset polymers containing very high levels of reinforcement fillers. These improved materials, in turn, create a component with superior thermophysical properties, including high heat flux levels, thermal conductivity, impact resistance, corrosion resistance, and maintenance of mechanical properties at high temperatures (>300° F.). The present invention also allows for wide variety of geometric configurations and the possibility to insert temperature sensors directly in hot zones of heaters.

Abstract: A molded polymer composite heater is shown. The use of transfer molding and compression molding allows for the use of thermoset polymers containing very high levels of reinforcement fillers. These improved materials, in turn create a heater with thermophysical properties superior to the prior art, including higher heat flux levels, thermal conductivity, impact resistance, and maintenance of mechanical properties at high temperatures (˜>300° F.). The present invention also allows for wide variety of geometric configurations and the possibility to insert temperature sensors directly in hot zones of the heater.

Abstract: Heating elements, electrical devices and processes for manufacturing these components are provided. The heating elements and electrical components employ a fibrous support layer, such as a non-woven glass mat, which provides structural support to the relatively thin cross-section of the electrical device or resistance wire when a polymeric layer is applied.

Abstract: A self-cleaning water heater element is provided. The water heater element is plated with a layer of gold such that the gold surface has a low surface roughness. The smooth gold surface inhibits scale formation on the water heater element. The gold-plated smooth-surfaced water heater element may be manufactured by coating a standard water heater element with an adhesion layer, electroplating a layer of bright nickel on the adhesion layer, and electroplating a gold layer on top of the bright nickel layer.

Abstract: Heating elements, electrical devices and processes for manufacturing these components are provided. The heating elements and electrical components employ a fibrous support layer, such as a non-woven glass mat, which provides structural support to the relatively thin cross-section of the electrical device or resistance wire when a polymeric layer is applied, such as by molding under pressure.

Abstract: Heating elements suitable for heating a printing media of a ink-jet printer are provided. The heating element includes an electrical resistance heating member for generating resistance heating and a polymeric supporting layer for substantially encapsulating the electrical resistance heating member. The heating elements of this invention can include a fibrous support layer disposed over the electrical resistance heating member for assisting in the application of the polymeric layer. Additionally, the provided heating elements can be formed into a portion of a media pathway for an ink-jet printer.

Abstract: A scale-inhibiting water heater element is provided. The water heater element is coated with a diamond-like coating which has low surface tension to keep scale from forming, and is thermally conductive, which helps prevent overheating. The scale-inhibiting water heater element may be manufactured, for example, by coating a standard water heater element with an amorphous silicon adhesion layer, and then applying a diamond-like coating using a pulsed-glow discharge process.

Abstract: A metal sheath heating element for substantially dry applications is disclosed. In one embodiment, the heater is substantially elongate and cylindrical, and comprises a coiled resistive heater wire. The heater wire is disposed within a stainless steel outer sheath. Granular insulating material is introduced into the sheath to electrically insulate the heating element from the outer sheath, and to thermally conduct heat from the heating element to the sheath. At least one small hole is formed in outer sheath to permit any moisture trapped therein to escape, advantageously minimizing the potential for current leakage between the heating element and the outer sheath, as well as minimizing the likelihood of depletion of oxygen from the filler material due to oxidation occurring within the sheath. In one embodiment, a plurality of holes are formed at spaced intervals along the length of the sheath.

Abstract: A method of manufacturing a sheathed electrical heater assembly comprising the steps of: molding a core element into a desired shape, the core element having an outer surface; heating the core element at an elevated temperature sufficient to release organic material from the core element; placing a heating element in communication with the core element; and, encapsulating the core, and the heating element in an insulation protection layer, whereby the heater assembly is formed. Additionally shown is a sheathed electrical heater assembly comprising: a core made of an organo-ceramic material; a heating element in communication with the core; an insulation protection layer encapsulating the core and heating element to produce the heater assembly, the protection layer comprising and organo-ceramic material; and, a sheath encapsulating the heater assembly, the sheath also comprising an organo-ceramic material.

Abstract: A heater with an enclosing envelope to enhance safety, has a plate-shaped heating body made of a ceramic resistor, two conductive plates attached on the plate-shaped heating body, and at least one heat-dissipating device absorbing the heat generated by the heating body and radiating the heat. After the plate-shaped heating body is attached with the two conductive plates, an insulating case is used to house the plate-shaped heating body with the conductive plates. The resulting structure is inserted into a tubular enclosing envelope, and the tubular enclosing envelope is pressed to clamp the plate-shaped heating body. The heat-dissipating device is arranged outside the tubular enclosing envelope. By the enclosing envelope, sparks are prevented and the heater is safer.

Abstract: Various components of thermal systems are shown molded within a polymer composite sheath, including heaters, sensors, and control circuits. The use of transfer and compression molding allows for the use of thermoset polymers containing very high levels of reinforcement fillers. These improved materials, in turn, create a component with superior thermophysical properties, including high heat flux levels, thermal conductivity, impact resistance, corrosion resistance, and maintenance of mechanical properties at high temperatures (>300.degree. F.). The present invention also allows for wide variety of geometric configurations and the possibility to insert temperature sensors directly in hot zones of heaters.

Abstract: A molded polymer composite heater is shown. The use of transfer molding and compression molding allows for the use of thermoset polymers containing very high levels of reinforcement fillers. These improved materials, in turn create a heater with thermophysical properties superior to the prior art, including higher heat flux levels, thermal conductivity, impact resistance, and maintenance of mechanical properties at high temperatures (.about.>300.degree. F.). The present invention also allows for wide variety of geometric configurations and the possibility to insert temperature sensors directly in hot zones of the heater.

Abstract: A safety protection structure for aquarium heater, including an anti-corrosion tube body in which an insulative receptacle, an electric heater, a thermal control switch, an anti-oxidation heat conductive layer, a grounding mechanism and multiple water-sealing members are disposed. The safety protection structure serves to protect the heater from leakage of electricity, blowing up due to abruptly increasing temperature after separated from the water and burning of environmental articles by over-heated surface of the heater after separated from the water.

Abstract: A method and an apparatus for detecting the crack of a heater of an acid and rinse bath, acid and rinse bath is filled with acid solution, a heater is used to heat the acid solution. A heater is constituted of a hollow quartz tube with one closed end and one open end, the closed end is submerged into acid solution, part of the quartz tube is exposure in the air. The heated filament is inserted into the open end of the heater through the closed end of the heater, moisture detecting device is attached on the inner side wall of the quartz tube, use chemicals that will change color by absorbing moisture, or use electronic component to detect the humidity, monitoring the variation of moisture in the quartz tube to acknowledge is there any crack of the quartz tube, and replace the defect quartz tube before too late.

Abstract: A heating assembly for imparting energy to a liquid which is enclosed in a vessel, is described and which includes a base plate borne by the vessel and having a first portion which has a given first mass, and a second portion which is made integral with the first portion and which has a given second mass; a heating element borne by the second portion of the base plate and disposed in heat emitting relation relative to the liquid in the vessel; and a temperature sensor mounted in heat sensing relation relative to the second portion of the base plate.

Abstract: A method for processing heating wire of aquarium heater and an aquarium heater made by the method. The method includes a step of prior to sealing the heating wire, coating the heating wire with a thin insulative voltage-resistant and heat-resistant layer, whereby even though the outer protective skin of the heater is broken and water infiltrates therethrough, the insulative layer can still effectively avoid leakage of electricity and ensure safety. The aquarium heater includes: a heating wire wound on a heat-resistant insulative medium, the heating wire being processed and coated with an insulative layer of vaseline prior to sealing; a conductive metal wire connected to two ends of the heating wire; and an outer insulative protective skin coated on the heating wire and the conductive wire.

Abstract: Electrical resistance heating elements are provided which are useful in heating fluid mediums, such as air and water. The heating elements include an element body having a supporting surface and a resistance wire wound onto the supporting surface which is connected to a pair of terminal end portions. Disposed over the resistance wire, and over most of the supporting surface, is a thermally-conductive polymeric coating which hermetically encapsulates and electrically insulates the resistance wire from the fluids to be heated. This thermally-conductive polymer coating has a thermal conductivity value of at least about 0.5 W/m .degree.K. Improved properties are preferably provided by ceramic powder, such as Al.sub.2 O.sub.3 and MgO, and glass fiber additives.

Abstract: A purge manifold assembly, which can be used in a gas purged immersion heater, includes a housing having a vessel wall having an aperture extending therethrough. A purge manifold is located adjacent the vessel wall. The purge manifold includes an aperture extending therethrough and colinear with the vessel wall aperture, a bore extending in the purge manifold, in a direction approximately normal to the purge manifold aperture, and a port communicating the bore with the purge manifold aperture. A fitting body extends into the vessel wall aperture and the purge manifold aperture. The fitting body includes a longitudinally extending through bore and a port communicating with the through bore. The port also communicates with the port of the purge manifold. In this way, a purge gas is allowed to flow through a sheath enclosing a heater wire held in the housing of the gas purged immersion heater.

Abstract: An electric heater assembly suitable for heating molten metal, the electric heater assembly having a sleeve comprised of a closed end suitable for immersing in the molten metal. The sleeve is fabricated from a composite material comprised of titanium alloy and having an outside surface to be exposed to the molten metal coated with a refractory resistant to attack by the molten metal; and an electric heater located in the sleeve in heat transfer relationship therewith.

Abstract: A linear cartridge heater has a cylindrical heater element and an integral, concentrically-mounted current collector element positioned within a fire retardant chlorinated PVC enclosure. The enclosure includes a unitarily-molded mounting flange for sealingly mounting the cartridge heater, a unitarily-molded special "tee" section interconnected with the mounting flange, and an alignment bushing. The alignment bushing is interconnected with the special "tee" section by a pipe section to form a fluid flow path between the alignment bushing and the special "tee" section. The special "tee" section provides an outlet for discharging heated water and a mounting place for a first thermistor temperature sensor.