Entries |
Document | Title | Date |
20080251034 | FORWARD COMBUSTION TYPE CONDENSING GAS WATER HEATER - A forward combustion type condensing gas water heater is provided including a burner, a primary heat exchanger, a drain pipe for condensation water, a gathering and discharge device for condensation water, a secondary heat exchanger. The gathering and discharge device and the secondary heat exchanger have center lines different from the primary heat exchanger. Flue gas rises through the primary heat exchanger and passes through the secondary heat exchanger in a direction staggered with respect to the falling direction of condensation water. The condensing gas water heater effectively avoids resistance between the condensation water and the flue gas and prevents the condensation water from flowing to the burner, the combustion chamber, and the ignition pin. | 10-16-2008 |
20080264355 | WATER HEATER - The object is to provide a water heater capable of efficiently transmitting radiation heat of a burner to hot water in a hot water storage chamber, and improving thermal efficiency. In water heater, a second restriction part having a shallower depth than a restriction part is partially arranged along a peripheral edge of a lower mirror plate of a hot water storage chamber, a protrusion part protruding in a ring shape toward the center side of the lower mirror plate is arranged between the restriction part and the second restriction part, and a burner is provided so as to position a burner head of the burner to face the protrusion part. | 10-30-2008 |
20100018475 | HIGH EFFICIENCY WATER HEATER - An application for a method of heating water includes transferring the water from a water supply into an inner tank of the water heater which is held within an outer tank, transferring the water from the inner tank into an outer tank and then to supply a building with hot water. The water in the outer tank is heated with hot gasses, partially cooling to intermediate temperature gasses. The water in the inner tank is heated with the intermediate temperature gasses, further cooling the intermediate temperature gasses into cooler gasses that are then exhausted out of the water heater. | 01-28-2010 |
20100031900 | LOW COST TANKLESS PORTABLE WATER HEATER - A portable tankless water heater includes a heat exchanger disposed in a sealed housing with an inlet cold water line and an outlet hot water line extending outside the sealed housing. A burner, disposed in an operative relationship with said heat exchanger is provided for heating water flowing through said heat exchanger and an exhaust system induces draft of air from a housing air inlet through said heat exchanger and out of a housing flue outlet. | 02-11-2010 |
20100043727 | HEATING SYSTEM - A heating system for heating a fluid, the system comprising two separate heat exchangers, each directly heated by a burner to heat the fluid, a common flue into which the two burners are arranged to discharge their exhaust gas, a common fan arranged to supply air to the two burners, and a gas supply to each burner. A splitter valve splits the air flow from the fan to the two burners. A controller controls the speed of the fan, the position of the splitter valve and the gas supplies according to the heat output requirement of the system. | 02-25-2010 |
20100064987 | GAS WATER HEATER - A gas water heater includes a power burner, a flue tube, an exhaust plenum, and a draft hood. The flue tube includes a portion that describes at least a 360° loop. Products of combustion are forced through the flue tube under the influence of the power burner, and enter the exhaust plenum. In the exhaust plenum, the pressure of the products of combustion drops such that the products of combustion flow into the draft hood substantially entirely under the influence of natural convection. In one embodiment, the power burner fires down into the flue tube through a side wall of the water heater, the loop of the flue tube is near the bottom of the water heater, and the plenum is in the top of the water heater. | 03-18-2010 |
20100288209 | HEAT EXCHANGER FOR A BOILER - A heat exchanger for a boiler comprises a central chamber for receiving a combustion gas. A baffle divides the central chamber into a first section and a second section. The baffle also restricts the combustion gas from flowing directly from the first section of the central chamber to the second section of the central chamber. There is a plurality of spaced-apart flues disposed about a periphery of the central chamber. The flues allow for communication between the first section of the central chamber and the second section of the central chamber, in particular, the flues allow for combustion gas to flow from the first section of the central chamber to the second sections of the central chamber. | 11-18-2010 |
20100300378 | BOILER WITH VARIOUSLY-SHAPED HEAT EXCHANGE ELEMENTS - There is described a boiler ( | 12-02-2010 |
20100307428 | FUEL COMPOSITION - A domestic heating fuel composition, comprising (a) a paraffinic hydrocarbon composition comprising at least 90 wt % normal paraffins and/or iso-paraffins comprising from 6 to 24 carbon atoms, wherein the weight ratio of iso-paraffins to normal-paraffins is below 6 to 1, and (b) at least one compound having a C/H molar ratio of above 0.8 and soluble in component (a) at ambient conditions, wherein the component (b) is present in the fuel composition in an amount effective to increase the responsiveness of a yellow/red flame detector to a required threshold level. | 12-09-2010 |
20110041781 | COIL TUBE HEAT EXCHANGER FOR A TANKLESS HOT WATER SYSTEM - A novel water heat exchanger with a helix coil incorporated into a stainless steel elongated variable diameter cylindrical housing. A buffer tank is incorporated within the lumen of the helix coil. In one embodiment, the heat exchanger utilizes a radial direct-firing burner and a blower-driven hot flue gas to heat water for domestic and commercial use. In one embodiment, at least a rope seal is disposed between adjacent coil loops of a portion of the helix coil for enhancing heat transfer to the helix coil. In one embodiment, solar and electric heating systems are combined with the helix coil heat exchanger and disposed within the buffer tank to provide supplemental heating. In another embodiment, the heat exchanger further comprises a Stirling engine comprised of a free piston having hot and cold ends that is disposed within the cavity taken up the buffer tank, wherein the hot end receives heat from the burner and the cold end is cooled by the incoming cold water line to form an electric power generator. | 02-24-2011 |
20110185985 | Fluid heating apparatus - A fluid heating apparatus for use in water heaters, boilers, cooking applications or the like comprising a body. The fluid heating apparatus also comprises a primary heat exchanger arranged within the body and a secondary heat exchanger arranged adjacent to the primary heat exchanger within the body. The apparatus also comprises a burner arranged within the primary heat exchanger. The primary heat exchanger comprises a plurality of concentric doughnut shaped plates arranged over the burner. A blocking plate is arranged adjacent to one of the concentric plates of the primary heat exchanger. The secondary heat exchanger comprises a plurality of concentric doughnut shaped plates arranged adjacent to the blocking plate on a side opposite of the plates of the primary heat exchanger. The apparatus further comprises a manifold in fluid communication with the plurality of concentric plates and blocking plates of both the secondary heat exchanger and primary heat exchanger. | 08-04-2011 |
20110185986 | PROPANE OR DIESEL POWERED HEATER WITH COMMON BURNER OPENING - A coolant heater having a coolant tank and a burner tube within the coolant tank is used for marine and motor coach installations and is used for either a liquid powered or gas powered burner. | 08-04-2011 |
20110308481 | WATER HEATER BLOWER HOUSING - A fuel-fired water heater includes a water storage tank, a flue positioned to receive combustion gases and transfer heat from combustion gases to water in the water storage tank, and a blower assembly. The blower assembly includes a housing defining an inlet positioned to receive combustion gases from the flue, an interior defined by the housing, and an outlet positioned to exhaust combustion gases from the interior of the housing. The blower assembly further includes a motor/impeller assembly that is positioned in the interior of the housing and is configured to direct combustion gases from the inlet of the housing toward the outlet of the housing. The housing of the blower assembly includes an interior wall portion, an exterior wall portion, and sound-absorbing material interposed between the interior and exterior wall portions. The interior wall portion defines perforations extending between the sound-absorbing material and the interior of the housing. | 12-22-2011 |
20120090562 | STOREAGE GAS WATER HEATER - A gas water heater includes a water tank, a combustion chamber, a burner, a heat exchanger tube at least partially within the water tank, and a fan. The burner receives fuel gas and primary air to create a primary air-fuel mixture for combustion in the combustion chamber with secondary air. The primary air-fuel mixture has a gas concentration above the upper explosive limit of the fuel gas. Secondary air is supplied to the combustion chamber through a secondary air conduit that is separate from the burner. The heat exchanger tube receives the products of combustion, transfers heat from the products of combustion to water in the tank, and exhausts of the products of combustion. Only air flows through the fan; no fuel-air mixture flows through the fan. The water heater utilizes partial premix combustion with low excess air ratio and low contaminant emission. The water heater utilizes a high power burner such that the water heater can supply hot water continuously during low flow rate draws and hot water stored in the tank supplements the hot water supply of the water heater during higher flow rate draws. | 04-19-2012 |
20130042823 | HEAT EXCHANGER INCLUDING WASTE HEAT RECOVERY - Disclosed is a heat exchanger, and a method for heating a working fluid. The heat exchanger includes a burner, a combustion section, and a condenser section positioned below the combustion section such that exhaust from the burner passes through the spiral coils and to the condenser. In an example of this disclosure, the combustion section includes a plurality of spiral coils radially spaced apart relative to one another, and the condenser section includes a plurality of U-bend coils. | 02-21-2013 |
20130061821 | COMBUSTION APPARATUS - An exhaust channel of a combustion apparatus is defined by an upper sloping plate and a lower sloping plate. The lower sloping plate contains a rising part and a lower sloping wall. A water droplet baffle plate is positioned across an interspace from the rising part. The interspace is brought into fluid communication with the exhaust channel through an upper surface opening while being brought into fluid communication with a bottom of a heat exchange chamber through a communication opening. A collision wall part of the water droplet baffle plate is disposed in close proximity to a lowest fine tube so as to oppose against a combustion exhaust flow. Water droplets adhere onto the collision wall part. Water droplets failing to adhere to the collision wall part fall through the upper surface opening positioned over an upper end of the collision wall part. | 03-14-2013 |
20130220237 | Method and Apparatus for Heating a Stored Liquid - A self-contained portable heating system to heat a stored liquid in a storage tank to a desired temperature is provided. The system can comprise operatively connected components such as a generator to power a burner that can transfer energy from a combustion product, from for example, a fuel supplied by an attached fuel tank, to a heat transfer fluid through the use of a boiler. The heat transfer fluid can transfer heat from the boiler 24 to a heat exchanger which can then transfer heat to the stored liquid in the tank. The tank can also comprise a circulating pump that can circulate the heat transfer fluid and an expansion tank that can receive the heat transfer fluid when it expands as a result of being heated. In some embodiments, the heating components can be supplied separately from storage tank so that they can be retrofit onto an existing tank. | 08-29-2013 |
20130284117 | APPARATUS AND CONTROL METHOD FOR A HYBRID TANKLESS WATER HEATER - 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. | 10-31-2013 |
20140150733 | WATER HEATER - A water heater includes a water pipe form by bending a pipe. The entire water pipe leans related to a vertical plane to expose all the section to a burner thereunder. All the sections of the water pipe lean downwards related to a horizontal plane. It will make the water in the water in the water pipe flows backwards when no water is supplied to the water heater. Therefore, there will never be water remaining in the water pipe to get rid of the jam problem. | 06-05-2014 |
20140182521 | SYSTEM AND METHOD FOR HEATING FLUIDS, AND AN ADAPTER FOR USE WITH A BOILER - A fluid heating system, comprising: a heater having an inlet and an outlet; a storage vessel; a fluid mixer having a first inlet for receiving fluid stored in or passing through the storage vessel, a second inlet for receiving fluid from a cold fluid supply, and an outlet for supplying fluid to the heater inlet; wherein in a first mode the heater is operable to heat fluid in the storage vessel, and in a second mode the fluid mixer is mixes fluid from or passing through the storage vessel with fluid from the cold fluid supply at a predefined volumetric ratio to provide mixed fluid to the inlet of the heater to be heated further to an output temperature. | 07-03-2014 |
20140209043 | Companion Water Heater Jacket - A jacket for a hot water heater appliance includes a top, bottom, front, back, and a fastener. The top is configured to insulate an upper portion of a hot water tank. The bottom is configured to insulate a lower portion of the hot water tank. The front is configured to insulate a front portion of the hot water tank. The back is configured to insulate a back portion of the hot water tank. The fastener is configured to releaseably fasten the front to the back. The top, bottom, front and back include expanded polypropylene (EPP) configured to provide insulation to the hot water tank. | 07-31-2014 |
20140373794 | HOT WATER STORAGE TANK-TYPE CONDENSING BOILER HAVING MULTI-STAGE STRUCTURE - A hot water storage tank-type condensing boiler having a multi-stage structure is provided where the upper end plate of a water tank exposed to a firebox is formed to have a multi-stage structure so that the distances at which each portion of the upper end plate is exposed to a flame are the same to uniformly heat water filled within the water tank at each of the portions. In addition, like the upper end plate, the lower end plate may be formed to have a multi-stage structure so that the distances between each of the stages of the upper end plates and each of the stages of the lower end plate are the same. Thus, furnace tubes passing through the upper and lower end plates may have the same length to improve productivity and provide the same combustion load. | 12-25-2014 |
20150020756 | HEATING DEVICE - A device for heating a flowing medium (e.g., water), wherein the device comprises a heating module and a heat exchanger enclosed by an insulating material comprising a vacuum-packed core material. The heating module and the heat exchanger may further be received in a housing having a number of walls, wherein the vacuum-packed core material is arranged between one of the walls and the heating module and/or the heat exchanger. | 01-22-2015 |
20150354809 | Modulating Burner With Venturi Damper - A modulating burner apparatus includes a burner and a blower placed upstream of the burner. A venturi is placed upstream of the blower. A damper valve is placed upstream of the venturi. The damper valve has an open position and a restricted position. A smaller gas valve and a larger gas valve are communicated with the venturi. A controller is operably associated with the system to select a position of the damper valve and to select the appropriate one of the gas valves so as to provide a low output operation mode and a high output operation mode, which in combination provide an overall turndown ratio of at least 25:1. | 12-10-2015 |
20150377510 | Heater with Telescoping Tower - The present invention provides a large-scale water heater with a telescoping tower having a tower with a storage area proximal to the bottom of the tower; a portion of the tower that telescopes vertically that is pre-filled with a packing media; a nozzle designed to distribute a fluid that is located above the packing media; a firing chamber with a proximal end in fluid communication with the tower; and a burner in fluid communication with the distal end of the firing chamber for combusting fuels. | 12-31-2015 |