A combustion device includes a solenoid valve configured to open and close an inflow port and an additional solenoid valve configured to open and close a communication port selectively mountable at an upstream end of a distribution flow passage with a small number of nozzles. When the additional solenoid valve is mounted, a state of supplying a fuel gas to only a distribution flow passage with a large number of the nozzles by opening the solenoid valve and closing the additional solenoid valve and a state of supplying the fuel gas to two distribution flow passages by opening the solenoid valve and opening the additional solenoid valve are mutually switchable. When the additional solenoid valve is not mounted, a state of supplying the fuel gas to the two distribution flow passages by opening the solenoid valve and a state of not supplying the fuel gas are mutually switchable.
A gas distribution unit includes a main flow passage and a plurality of distribution flow passages that branch from the main flow passage and supplies a fuel gas to each of groups of a plurality of nozzles. A main body includes a main depressed portion that forms the main flow passage, a plurality of depressed portions that form the respective distribution flow passages, and fuel gas inlets provided at upstream ends of the respective depressed portions and communicated with the main depressed portion. Among the inlets, the inlet of the depressed portion corresponding to the group including the largest number of the nozzles is formed to have a diameter larger than diameters of the inlets of the other depressed portions, and the inlet having the large diameter is formed to have a thickness in a center axis direction smaller than thicknesses of the inlets of the other depressed portions.
A gas distribution unit includes a main flow passage and a plurality of distribution flow passages that branch from the main flow passage and supplies a fuel gas to each of groups of a plurality of nozzles. A main body includes a main depressed portion that forms the main flow passage, a plurality of depressed portions that form the respective distribution flow passages, and fuel gas inlets provided at upstream ends of the respective depressed portions and communicated with the main depressed portion. Among the inlets, the inlet of the depressed portion corresponding to the group including the largest number of the nozzles is formed to have a diameter larger than diameters of the inlets of the other depressed portions, and the inlet having the large diameter is formed to have a thickness in a center axis direction smaller than thicknesses of the inlets of the other depressed portions.
A combustion device includes a solenoid valve configured to open and close an inflow port and an additional solenoid valve configured to open and close a communication port selectively mountable at an upstream end of a distribution flow passage with a small number of nozzles. When the additional solenoid valve is mounted, a state of supplying a fuel gas to only a distribution flow passage with a large number of the nozzles by opening the solenoid valve and closing the additional solenoid valve and a state of supplying the fuel gas to two distribution flow passages by opening the solenoid valve and opening the additional solenoid valve are mutually switchable. When the additional solenoid valve is not mounted, a state of supplying the fuel gas to the two distribution flow passages by opening the solenoid valve and a state of not supplying the fuel gas are mutually switchable.
F24H 15/365 - Control of heat-generating means in heaters of burners of two or more burners, e.g. an array of burners
F24H 1/14 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
A water heater mounting structure for mounting a case to a mounting surface via a support fitting component that is fixed to the mounting surface in a vertical direction. The case houses a burning device. On a back plate of the case, a lock-engagement fitting component is mounted. The lock-engagement fitting component has an upper plate portion and a lower plate portion. The upper plate portion is fixed to the back plate, and the lower plate portion is lock-engageable with the support fitting component from above and has a dimension longer than the support fitting component in the left-right direction. The lower plate portion is lock-engaged with the support fitting component from above to hang and support the case through the lock-engagement fitting component by the support fitting component.
A water heater connectable to an external air supply and exhaust pipe includes a housing that houses a combustion device, a connecting portion, a first air supply and exhaust pipe, and a second air supply and exhaust pipe. The connecting portion includes an outer cylinder and an inner cylinder projecting upward from an upper surface of the housing. The first air supply and exhaust pipe and the second air supply and exhaust pipe are selectively connectable to the connecting portion. The first air supply and exhaust pipe is connectable to the connecting portion by interpolating a first air supply pipe into the outer cylinder and interpolating a first exhaust pipe into the inner cylinder, and the second air supply and exhaust pipe is connectable to the connecting portion by externally fitting a second air supply pipe onto the outer cylinder and interpolating a second exhaust pipe into the inner cylinder.
F24H 9/1832 - Arrangement or mounting of combustion heating means, e.g. grates or burners
F23L 1/00 - Passages or apertures for delivering primary air for combustion
F23L 17/00 - Inducing draughtTops for chimneys or ventilating shaftsTerminals for flues
F24H 1/41 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes in serpentine form
A water heater includes a primary heat exchanger, a secondary heat exchanger disposed above the primary heat exchanger, a flow path member, and a flow restriction member. The secondary heat exchanger includes a case and heat transfer pipes arranged in the case. The case includes a wall having a gas inlet through which combustion exhaust gas discharged from the primary heat exchanger is introduced into the case. The flow path member connects the primary heat exchanger and the secondary heat exchanger and is disposed adjacent to the gas inlet and is configured to introduce the combustion exhaust gas discharged from the primary heat exchanger into the secondary heat exchanger through the gas inlet. The flow restriction member is disposed on the wall of the case to suppress upward flowing of the combustion exhaust gas that is introduced into the case through the gas inlet.
F24H 1/14 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
F24H 1/40 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
F24H 8/00 - Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
F28F 9/22 - Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
A heat exchanger includes a case, fins, and heat transfer tubes. Combustion exhaust gas passes downward in the case. The fins are disposed at a lower portion of the case and arranged in the first direction. Each of the fins includes a first end and a second end that is an opposite end from the first end in a second direction intersecting the first direction. Each of the fins includes through holes in which the heat transfer tubes are inserted. Each of the fins includes heat receiving portions arranged in the second direction and connecting portion connecting the heat receiving portions. The heat receiving portions include a first heat receiving portion disposed at the first end. The first heat receiving portion includes a first recessed portion recessed from an outer edge of an upper part of the first heat receiving portion. (141 words)
F28F 1/32 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
F24H 9/1809 - Arrangement or mounting of grates or heating means for water heaters
F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
42 - Scientific, technological and industrial services, research and design
Goods & Services
Providing online non-downloadable web-based software that
allows users to regulate their boilers, spa heaters, and
pool heaters through the Internet, and provides information
in the field of integrated pool, spa, and water heating
systems; providing temporary use of online non-downloadable
mobile applications that track, monitor and allow the user
to operate boilers, spa heaters, and pool heaters.
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Providing online non-downloadable web-based software that allows users to regulate their boilers, spa heaters, and pool heaters through the Internet, and provides information in the field of integrated pool, spa, and water heating systems; providing temporary use of online non-downloadable mobile applications that track, monitor and allow the user to operate boilers, spa heaters, and pool heaters.
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Providing a website featuring consumer information in the fields of integrated pool, spa, and water heating systems Providing a website featuring repair information in the fields of integrated pool, spa, and water heating systems Providing a website featuring technology that allows users to regulate their boilers, spa heaters, and pool heaters through the Internet; providing temporary use of online non-downloadable mobile applications that track, monitor and allow the user to operate boilers, spa heaters, and pool heaters
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Providing a website featuring consumer information in the fields of integrated pool, spa, and water heating systems Providing a website featuring repair information in the fields of integrated pool, spa, and water heating systems Providing a website featuring technology that allows users to regulate their boilers, spa heaters, and pool heaters through the Internet; providing temporary use of online non-downloadable mobile applications that track, monitor and allow the user to operate boilers, spa heaters, and pool heaters
The case of the water heater is composed of a box body having a rectangular shape in front view with a front face opened and a front cover having a shallower bottom and assembled on the front face of the box body. While rear side bent parts bent inward are each formed at front ends of left and right side plates of the box body, the front side bent parts bent inward are each formed at rear ends of left and right front side plates of the front cover and are abutted on the rear side bent parts in a state of being assembled to the box body. The inner bent parts folded backward are formed at inner end parts of the front side bent parts and are positioned on inner extension lines of the rear side bent parts in an assembled state.
(1) Heating boilers; Water heaters; Swimming pool water heaters; Swimming pool and spa heaters; Gas-fired hot water supply boilers being heating boilers; Gas-fired heating boilers; Gas-fired de-icing and snow melting boilers being heating boilers; Heat pumps; Heat pump swimming pool heaters
A premixing device includes a first and a second venturis in which air flows by rotation of a centrifugal fan, first and second communication openings disposed in the venturis, respectively, for allowing fuel gas supplied from a gas supply passage to flow out, a flap valve capable of opening and closing the second venturi on a side downstream of the second communication opening, and an equalizing valve disposed in the gas supply passage on a side upstream of the first and the second communication openings. The gas supply passage, which connects between an outlet of the equalizing valve and the first and the second communication openings, diverges from the outlet of the equalizing valve to independently form a first gas passage and a first straight path, and a second gas passage and a second straight path for the venturis, respectively.
The premixing device includes a first and a second venturis having a pressure reducing portion for air, and a gas supply passage for supplying fuel gas to the venturis, and generates air-fuel mixture by mixing fuel gas with air flowing in the venturis by using a fan and supplies the air-fuel mixture to a burner. A first and a second nozzles for reducing pressure of fuel gas are disposed in the gas supply passage, and the first and the second nozzles are formed in the same nozzle shape as the pressure reducing portion of the first and the second venturis.
Heating boilers; Water heaters; Swimming pool water heaters; Swimming pool and spa heaters; Gas-fired hot water supply boilers being heating boilers; Gas-fired heating boilers; Gas-fired de-icing and snow melting boilers being heating boilers; Heat pumps; Heat pump swimming pool heaters
A fluid heating system including a heating chamber that receives fluid and heats the fluid to provide heated fluid, a dispensing device that dispenses the heated fluid, the dispensing device encompassing the heating chamber, a thermostatic control device that regulates a power supply to the heating chamber, an energy recovery device that harvests mechanical energy provided by a flow of the heated fluid from the heating chamber to the dispensing device and generates electrical energy to power the thermostatic control device, a pressure regulating valve, wherein in a closed position, passage for the heated fluid is prevented between the heating chamber and the drain when a pressure in the heating chamber is below a predetermined pressure threshold and passage for the heated fluid is provided between the heating chamber and the drain when the pressure in the heating chamber is above the predetermined pressure threshold.
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.
F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
F24H 1/40 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
F24H 9/20 - Arrangement or mounting of control or safety devices
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 an through the tube.
A heating unit for heating fluid is described having a first manifold having at least one inlet, a second manifold connected to the first manifold and having at least one outlet, and a third manifold. The heating unit also includes one or more heating systems which extend from the third manifold to the first manifold via the second manifold, where the one or more heating systems have an inner tube and an outer tube. Further, the heating unit includes a fluid flow path from the at least one inlet to the at least one outlet via the first manifold, an area between the inner tube and outer tube, the interior of the inner tube and the second manifold.
[Problem] Provided is a cooking stove, which can be manufactured easily, with which improved yield can be anticipated, which does not cause problems that arise from warping due to heat, and can be manufactured using relatively inexpensive materials. [Solution] Because the cooking stove is configured so that, when a trivet (2) is set, the inner margin of the trivet ring (21) protrudes further into the opening (4) of the top plate (3) than the edge of the opening (4) and a gap of only 1 mm or less occurs between the inner margin of the trivet ring (21) and the gas burner (5), the inner margin of the trivet ring (21) can prevent the intrusion of broth spilled from a pot, etc. into the appliance. Consequently, because there is less need to bring the opening (4) of the top plate (3) close to the gas burner (5) compared to the past, precision is not required when forming the opening (4), the cooking stove can be easily manufactured, and yield can be improved.
Boilers, namely, hot water supply boilers, heating boilers, de-icing and snow melting boilers, gas-fired boilers, hydronic heating boilers and pool heating boilers; and water heaters
Boilers, namely, hot water supply boilers, heating boilers, de-icing and snow melting boilers, gas-fired boilers, hydronic heating boilers and pool heating boilers; and water heaters
Factory-installed system, which allows economical, quick changeover between natural and propane gas in boilers and water heaters, comprised of a switch-activated electro-mechanical gas controller, sold as integral component part of boilers and water heaters
sealed combustion air intake system to boiler heaters consisting of a pressurized vent pipe, air-intake elbow termination pipe and an in-line air filter to prevent air-borne particles from entering the burner fuel-air mixture
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
(1) Heaters for hot turbulent therapeutic baths limited to the channels of trade of swimming pool equipment distributors or manufacturers and resellers of equipment primarily for swimming pool or therapeutic end use, but excluding the channels of trade of plumbing and heating contractors and plumbing and heating distributors.
cooperative advertising and marketing services, namely, creating brochures, posters, signs, and radio and television advertisements for distributors, contractors, and dealers of boilers, water heaters, booster heaters and hydronic space heaters
HEATERS FOR HOT TURBULENT THERAPEUTIC BATHS LIMITED TO THE CHANNELS OF TRADE OF SWIMMING POOL EQUIPMENT DISTRIBUTORS OR MANUFACTURERS AND RESELLERS OF EQUIPMENT PRIMARILY FOR SWIMMING POOL OR THERAPEUTIC END USE, BUT EXCLUDING THE CHANNELS OF TRADE OF PLUMBING AND HEATING CONTRACTORS AND PLUMBING AND HEATING DISTRIBUTORS
