Patents for F24D 17 - Domestic hot-water supply systems (3,522)
12/2001
12/19/2001CA2349634A1 Gas water heater
11/2001
11/29/2001US20010045102 Hot water supply system with heat pump cycle
11/28/2001EP1158249A2 Process of antibacterial action in electric domestic water storage heaters and device using this process
11/21/2001EP0890062B1 Method and device for temperature control of hot tap-water
11/08/2001DE10020356A1 Circulation system has heat generator, with pipe, heat carrier, water-cock, pump, circulation pipe with weights on free ends
10/2001
10/25/2001DE10017877A1 Plant or appliance for moving liquid or mixing it for movement in sections of pipe system
10/24/2001EP1148306A2 Hot water supply system with heat pump cycle
10/23/2001CA2098379C Solar energy collector
10/17/2001EP1144919A2 Water heater having multi-parameter control
10/11/2001DE10016172A1 Heating system with heat generator, dual circuit heat exchanger has control loop driven at least by circulation pump switch-on phases and monitoring consumable water temperature
10/04/2001WO2000006956A3 Water heater having multi-parameter control
10/04/2001EP1144919A3 Water heater having multi-parameter control
10/04/2001EP1139029A2 Heating installation with heat generator, controller and two circuit heat exchanger
09/2001
09/26/2001CN1071879C Secondary circulation unit
09/18/2001US6290142 Cogeneration apparatus
09/13/2001WO2001067001A1 Storage vessel assembly for hot water
08/2001
08/30/2001WO2001063182A1 Method and unit for controlling the bacterial conditions in water systems
08/30/2001DE10008427A1 Umwälzinjektor für zentrale Warmwasser-Versorgungsanlagen Umwälzinjektor for centralized hot water supply systems
08/23/2001WO2001061224A1 A method and a device for reducing growth of bacteria in a water-mixer with an appertaining pipeline
08/23/2001DE10007872A1 Solarkollektor-Dachpfannen aus Kunststoff Solar collector roof tiles made of plastic
07/2001
07/17/2001CA2160298C Convertible air conditioning unit usable as water heater
06/2001
06/28/2001DE19962644A1 Supply system for supplying hot water and/or drinking water based on regenerative solar energy consists of solar adsorption condensers, solar hot water producers and/or solar moist air distillators
06/28/2001DE19962619A1 Automatic sterilization process for water supply system, involving sending heated water for purification via issuing point in free flow without direct line connection
06/21/2001US20010004009 Drainwater heat recovery system
05/2001
05/30/2001EP1103775A2 Heat exchanger and water heating system using same
05/25/2001WO2001036878A1 Draw-off conduit for hot-water
05/10/2001WO2001033143A1 Method and distributing device for establishing recirculation in water installations
04/2001
04/26/2001DE19950338A1 Volume mass flow stabilized hot water circulation network bridge has inlet and outlet primary couplings, and outlet and inlet secondary couplings, and secondary delivery pipe with outlet connection and secondary return pipe with inlet
04/25/2001EP1094279A2 Management of heated water in a storage boiler with anti-Legionella provisions
04/25/2001EP1093559A1 Heating system for non-drinking water
04/18/2001EP1092926A2 Solar sanitary water heating system with anti legionella devices
03/2001
03/29/2001WO2001022007A1 A multi-purpose heat source for the heating system of a building
03/29/2001DE19946064A1 Hot water heater has water container with electrical heating body, replaceable active carbon water filter(s) and/or UV radiation source(s); water flows through filter and/or past UV source
03/21/2001CN2424395Y Energy saving heating water circulating unit
03/21/2001CN1288131A Energy saving automatic water heater
03/14/2001CN2423532Y Air-conditioning machine with heating device
03/08/2001DE19941285A1 Doppelrohrsystem als Rohr im Rohr zum Erstellen von Verteil- und Zirkulationssystemen für Trinkwasser in Verbindung mit Trinkwassererwärmungsanlagen Double pipe system as a tube within a tube to create distribution and circulation systems for drinking water associated with drinking water heating systems
03/07/2001EP1081438A2 Double tube system as tube in tube for constructing a sanitary water distributing- and circulating system together with sanitary water heating installations
02/2001
02/22/2001WO2001013045A1 Sanitation unit
02/22/2001WO2001012047A1 Shower floor grating having flow preheating
02/22/2001DE19939269A1 Dual pipe coaxial system for heating fixes inner pipe or sleeve to outer pipe via centering web using conical sleeve mounting with endstops both ways at same level.
02/20/2001CA2176889C Aspirator water circulation apparatus
02/06/2001US6182683 Water recirculation manifold
02/01/2001DE19934786A1 Method and appliance for extending existing hot water system involve water discharge valve, receptacle, hot and cold water pipes
02/01/2001DE19932436A1 Circulating hot water supply of potable quality minimizes the risk of aerosol-borne flu and lung infection
01/2001
01/25/2001DE19934627A1 Hot water supply system has temporary storage element(s) near mixer tap and connected to ring line for supplying hot consumable water, bypass between hot water supply line and ring line
01/18/2001DE19932795A1 Drinking water anti-limestone formation unit thermally disinfected at intervals with operation of by-pass circuit in multi-storey buildings.
12/2000
12/28/2000DE19909900A1 Mobile solar heated shower comprises water tank on which solar collector is mounted
12/26/2000US6164307 Non-circulating, rapid, hot tap water apparatus and method
12/21/2000DE10010321A1 Recirculating pump for hot water etc is a common pump for the forward flow through an outer pipe and the return flow through an inner pipe with a complete pipe insulation for reduced costs and energy savings
12/19/2000US6161567 Single chamber water circulator
11/2000
11/30/2000DE19923787A1 Hot water supply system has water circulation pipe with electrically operated pump with on and off switches between water pipes near taps and cold water connection of hot water source
11/30/2000DE10024803A1 Control method for consumable water system involves operating circulation pump intermittently during predefined time period extending over greater part of day
11/02/2000DE19958482A1 Motion or flow creating device for fluid in otherwise static part of line, consisting of pump or other means to alter pressure in beginning of affected sectors
10/2000
10/18/2000EP1045127A2 Cogeneration apparatus
10/18/2000CN1270278A Heat and electric power co-generator
10/17/2000US6131536 Infrared and gas fluid heater system
10/11/2000CN2400723Y Multi-heat source domestic water heater
10/04/2000CN1268646A Boiling water by using gas and method for supplying hot water and equipment
10/03/2000US6125880 Mass flow (volume flow) stabilized circulation network
09/2000
09/21/2000DE19910600A1 Domestic water supply with pump and storage lays circulation line parallel to hot water up to wall tap point with routing elbow and time-switched pump.
09/19/2000US6119682 Water heater and storage tank
09/06/2000EP1033546A2 Heat exchanger for recovering waste heat from waste water
08/2000
08/31/2000DE4308941C2 Anordnung zur Warmwasserbereitstellung für mit Gaswandgeräten beheizte Durchlaufspeicher Arrangement for hot water supply for heated with gas wall mounted circulating memory
08/31/2000DE19906781A1 Warmwassersystem Hot water system
08/23/2000EP1030124A2 Hot water system with recirculation for buildings
08/23/2000CN2393027Y Split water heater
08/02/2000EP1023560A1 Water outlets for an ablutionary device or appliance
07/2000
07/12/2000EP1018063A1 Regulator
06/2000
06/21/2000CN1053732C Delivery supply system for multi-way shared pipeline
06/14/2000EP0868637B1 Solar heat plant
05/2000
05/31/2000DE19910096C1 Water, energy saving method for hot water supply systems involves temporarily storing output water, adding to mixer unit when output temp. reaches thermostatically regulated temp.
05/31/2000CN2380835Y Heat-pump type water-heater
05/25/2000DE19954943A1 Killing Legionnaire's disease bacteria involves heating of flowing drinking water and thermally disinfecting it through stay in tank for a specified period at a specified temperature
05/25/2000DE19851919A1 Solar heated water heater has storage tank, branch pipes, backflow check valves and pressurized hot water tank
05/11/2000DE19849362A1 Rohrsystem für flüssige Medien, insbesondere für in Gebäuden verlegte Warmwasserkreise zur Brauchwasserversorgung Pipe system for liquid media, particularly for buildings laid in hot water circuits for industrial water supply
05/04/2000DE19838339C1 Central hot water supply system has parallel pipes of different cross sections to the delivery points to deliver hot water according to the magnitude of the demand to reduce water losses and energy consumption
05/04/2000CA2252350A1 Water saving apparatus
05/03/2000EP0997690A2 Pipe system for liquids, esp. for sanitary hot water circuits in buildings
04/2000
04/20/2000WO2000021889A1 Method of preventing occurrence and growth of pathogenic microorganisms, especially legionella bacteria, in water mains
04/18/2000US6051819 Method and device for temperature control of hot tap-water
04/06/2000DE4438986C2 Anordnung zur Brauchwasserbereitung Arrangement for DHW
03/2000
03/28/2000CA2027217C Apparatus for dispensing quantities of water of variable temperatures
03/23/2000DE19840962A1 Vorrichtung zur Warmwasserversorgung einer Dusche Apparatus for supplying hot water shower
03/21/2000US6039067 Selectable control energy and water conservation system
03/15/2000EP0985888A2 Installation device for hot water production for a shower
03/09/2000DE19839168A1 Arrangement for controlling heating system hot water output has ring line with switching relay or similar controlling switching element connecting over dimensioned pump to mains
03/07/2000US6032687 Water conservation system
03/01/2000EP0981784A1 Water control device
03/01/2000CN1049968C Hot water supplying apparatus
02/2000
02/22/2000US6026844 Dual reservoir-based hot water recirculation system
02/10/2000WO2000006956A2 Water heater having multi-parameter control
01/2000
01/13/2000DE19830867A1 Method of utilizing energy sources by pre-heater and re-heater
12/1999
12/16/1999DE19824034A1 Brauchwasser-Erwärmungsanlage Domestic water heating system
12/09/1999WO1999063278A1 Heating system for non-drinking water
12/09/1999DE19825553A1 Thermostat valve for heating radiators in coaxial tube layouts
12/08/1999CN2352857Y Apparatus for automatically supplying hot water
11/1999
11/25/1999DE19822703A1 Hot water preparation plant
11/16/1999US5984198 Heat pump apparatus for heating liquid
11/07/1999CA2237011A1 Integrated air conditioning system with hot water production
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