EP1239236A2 - Heizeinrichtung zur kombinierten Heiz- und Brauchwassererwärmung - Google Patents
Heizeinrichtung zur kombinierten Heiz- und Brauchwassererwärmung Download PDFInfo
- Publication number
- EP1239236A2 EP1239236A2 EP01130360A EP01130360A EP1239236A2 EP 1239236 A2 EP1239236 A2 EP 1239236A2 EP 01130360 A EP01130360 A EP 01130360A EP 01130360 A EP01130360 A EP 01130360A EP 1239236 A2 EP1239236 A2 EP 1239236A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- heating
- heating device
- water
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/48—Water heaters for central heating incorporating heaters for domestic water
- F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
- F24H7/045—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using fluid fuel
- F24H7/0466—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using fluid fuel the transfer fluid being water
Definitions
- the invention relates to a heating device for combined heating and Domestic water heating.
- the object of the invention is a heating device of the type mentioned to improve that the above problems described are avoided and a simple design high efficiency under hygienically perfect heating conditions is achieved.
- An advantageous layer storage can be done without any special installation effort thereby achieve that the primary heat exchanger, the charge heat exchanger and the domestic water heat exchanger to form a Warm zone in the heat storage liquid preferably with the same Immersion depth arranged in an upper section of the storage container are, while the storage container in a preferably over at least 1/5 of the container height extending lower container area for training a cold zone is kept free of heat exchangers. That is also with small temperature differences, a simple supply of solar heat possible. This can advantageously be achieved in that in the lower Container area of the storage container the mouths of collector lines for preferably intermittent circulation of heat storage fluid arranged from the storage container via a solar collector are.
- tubular elongate Immerse the immersion kettle centrally from above into the storage tank. It is especially for a good decrease in heating power the burner through the heating water when the immersion boiler is through an insulating jacket at least partially against the heat storage fluid is heat insulated.
- the primary heat exchanger can preferably formed by its lower end portion, directly on the outside have heat-conducting fluid acted on with heat storage fluid. It is advantageous here if the heat-conducting part protrudes outwards Thermal fins is provided.
- the immersion boiler has a shield to limit a convection zone in the heat storage fluid.
- An advantageous embodiment sees here before that the insulating jacket in the region of a lower end portion of the Primary heat exchanger forms an insulating bell open at the bottom, whereby an annular space between the insulating bell and the primary heat exchanger Convection zone for the heat storage fluid is kept clear.
- the double-walled primary heat exchanger advantageously has an inner gas channel for the passage of the combustion gases and a ring surrounding the gas channel, to which the heating water can be applied Edelwasserkanal.
- the heated heating water can run out the primary heat exchanger via a directional valve either in a heating circuit or the charge heat exchanger can be fed.
- a structurally advantageous embodiment provides that the storage container can be closed at an upward-facing container opening erectable container pot includes. Another constructive improvement is achieved in that the storage container in the immersion tank, carrying the charge heat exchanger and the hot water heat exchanger Has lid part.
- the storage container preferably as Double-shell blow molded part made of plastic.
- a highly heat-insulating and damage-proof design provides that the storage container an inner shell and an outer shell made of plastic, preferably Polypropylene and a preferably made of rigid polyurethane foam Has formed insulating foam layer between the inner and outer shell.
- Heat storage fluid without pressure and as a closed volume of fluid held free of removal in the storage container.
- the charge heat exchanger can by a preferably made of stainless steel, the immersion boiler concentrically surrounding, through which the heating water can flow Pipe coils can be formed, while the process water heat exchanger advantageously than one made of plastic pipes, preferably extruded Polyethylene existing ring-shaped, through which process water flows Pipe register is formed.
- the heating device shown in the drawing serves both for heating of heating water as well as process water in a heating system 10 of a building. It essentially consists of a storage container 12 for receiving storage water 14 as a heat storage medium, one immersion boiler 16 arranged therein with gas burner 18 and primary heat exchanger 20 for heating heating water, a charge heat exchanger 22 for heating the storage water and a domestic water heat exchanger 24 for heating domestic and drinking water.
- the storage container 12 comprises a standing container pot 26, which at an upward-pointing container opening 28 through a Submersible boiler 16, the charge heat exchanger 22 and the domestic water heat exchanger 24 supporting cover part 30 is closed. It exists as a double-shell Blow molded part made of plastic, with an inner shell 32 and an outer shell 34 made of polypropylene, an insulating foam layer 36 made of rigid polyurethane foam is provided. No special is required Structural strength because the storage water 14 alone for heat storage serves and without operating overpressure to atmosphere and free of withdrawal is kept standing in the storage container 12.
- the tubular, elongate design is immersed Immersion boiler 16 from the cover part 30 centrally into the storage container 12 down one.
- the gas-fired via a speed-controlled fan 38 Burner 18 is in an extended combustion chamber 40
- Upper end portion of the submersible 16 is arranged during it subsequent lower part of the immersion boiler 16 through the primary heat exchanger 20 is formed.
- the primary heat exchanger 20 is double-walled Made of aluminum and has an inner gas channel 42 for passage the combustion gases and a ring surrounding the gas channel, heating water channel 44 to which heating water can be applied. For enlargement of the surface around which the combustion gases flow are in the Gas channel 42 arranged heat conducting body 46.
- the outlet of the combustion gases takes place via a at a lateral distance parallel to the primary heat exchanger 20 extending through the cover part 30 Exhaust pipe 48.
- the deepest is to discharge condensate Place the exhaust pipe a branch line 49 laterally from the container pot 26 led out.
- the heating water channel 44 is through a thermally conductive inner tube 50 Gas channel 42 separated and by a coaxial over spacing ribs 52 Outer jacket 54 limited radially outwards and at the front downwards.
- the heating water channel 44 is supplied with heating water from the cover part 30 via a return 56 and a forward 58.
- the primary heat exchanger 20 In order to prevent unwanted heat removal from the storage water 14, is the primary heat exchanger 20 with a heat insulating jacket 60 envelops.
- the insulating jacket 60 lies over a wide range liquid-tight to the outer jacket 54 of the heating water channel 44.
- the insulating jacket 60 in the Area of a lower end portion 55 of the primary heat exchanger 20, however is the insulating jacket 60 forming an insulating bell open at the bottom 62 extends radially, so that an upward and laterally shielded Annulus 64 as a locally limited convection zone compared to the Outer jacket 54 of the heating water channel 44 is kept clear.
- the lower end section 55 of the primary heat exchanger 20 thus forms one on the inside with heating water and on the outside with storage water Heat-conducting section, with projecting heat-conducting ribs on the jacket side 68 are provided to improve heat transfer.
- the Thermally conductive section 55 it is possible to be stored in the storage water Feeding heat back into the heating water, resulting in little Power requirements a heating operation can also be realized without a burner.
- the cooled down Storage water sinks down in the convection zone 64 down to the bottom of the container.
- the charge heat exchanger 22 is a stainless steel, the Immersion boiler 16 formed concentrically surrounding coiled tubing, which Inlet 68 and an outlet 70 with heated in the immersion tank 16 Heating water can be applied.
- the heating water can be from the Primary heat exchanger 20 by means of circulating pump 69 via a three-way valve 71 controlled by the charge heat exchanger 22 or via a Pass heating circuit 73 through a radiator 75 (Fig. 1).
- the domestic water heat exchanger 24 consists of a concentric the ring-shaped plastic pipe register arranged in the charge heat exchanger 22, which is surrounded by storage water 14 and the process water via a mains connection 72 and a hot water outlet 74 to one Consumer 75 can flow through in the manner of a water heater.
- the pipe register has a suitable pipe volume of, for example 50 liters so that sufficient hot water can be drawn continuously.
- the domestic water is therefore not in one as with conventional storage tanks large-volume container heated and stored, but it will constantly updated in the pipe register.
- the muzzle 80 of the return 82 and the outlet point below 84 of the flow 86 of a collector line 88 in the area of the cold zone 78 the storage water 14 advantageously in an intermittent Operation with temporary emptying of the collector line 88 by means of Pump 90 is circulated via the solar collector 92 (Fig. 1). That in the collector 92 heated storage water will be according to its temperature layered in the storage container 12.
- the heater 10 In regular heating mode, this is heating water heated by the gas burner 18 to a heat consumer 75, for example a floor heating.
- the retrograde - cold - heating water cools the combustion gases in the gas channel 42 so far from that the condensation heat released can be used.
- the Insulating jacket 60 prevents excessive heat input from the Storage water. With a low heating requirement, however, it is an appropriate one Heat supply from the storage water via the heat conduction 55 des Primary heat exchanger 20 possible in the heating water. In any case a cold zone is maintained in the lower container area, in which solar heating is possible even with a small temperature difference, the so warmed storage water due to its lower specific Weight automatically rises to the warm zone 76.
- In charging mode is the heating water heated by the gas burner 18 by the Charge heat exchanger 22 passed so as to store water in the Warm zone 76 to heat up.
- the domestic water is heated in this Warm zone 76 via the domestic water heat exchanger 24 according to the first-in-first-out principle, i.e. the cold water fed in from the network is called continuous column of liquid heated up, due to the large tube volume a high level of hot water comfort in terms of constant availability of uniformly hot domestic water.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Resistance Heating (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
Description
- Der Tauchkessel ist unter Verringerung des Installationsaufwandes raumsparend in den Speicherbehälter integriert, wobei etwaige Abwärme noch nutzbringend an das Speichermedium abgegeben wird;
- Die Wärme wird nicht im Brauchwasser selbst, sondern im davon völlig getrennten Speicherwasser gespeichert. Strömungsarme oder nicht durchwärmte Zonen auf der Brauchwasserseite sind dadurch gänzlich ausgeschlossen.
- Die von der Brauchwasserseite getrennte Wärmespeicherung vereinfacht die Einspeisung von Solarenergie;
- Der Wärmeinhalt des Speichermediums kann bidirektional brauchwasser- und heizungsseitig genutzt werden;
- Aufgrund des abgeschlossenen Speichervolumens bestehen an allen mit der Wärmespeicherflüssigkeit in Berührung stehenden Wärmetauscherflächen keine Probleme durch Kalkablagerungen. Bei herkömmlichen Speichern hingegen treten in dem nachgespeisten Speicherwasser vor allem bei Temperaturspitzen schädliche Kalkausfällungen auf.
- Fig. 1
- ein Blockschaltbild einer Heizanlage mit einer Heizeinrichtung zur kombinierten Heiz- und Brauchwassererwärmung;
- Fig. 2
- einen Speicherbehälter mit darin eintauchendem Tauchkessel im Vertikalschnitt.
Claims (20)
- Heizeinrichtung zur kombinierten Heiz- und Brauchwassererwärmung mit folgenden Merkmalen:a) einem mit Wärmespeicherflüssigkeit (14), insbesondere Speicherwasser befüllbaren Speicherbehälter (12),b) einem in den Speicherbehälter (12) eintauchenden Tauchkessel (16), welcher einen Brenner (18) zur Erzeugung von Verbrennungsgasen und einen Primärwärmetauscher (20) zur Erwärmung von Heizwasser durch die Verbrennungsgase aufweist,c) einem in dem Speicherbehälter (12) angeordneten, mit Heizwasser aus dem Primärwärmetauscher (20) beaufschlagbaren Ladewärmetauscher (22) zur Erwärmung der Wärmespeicherflüssigkeit (14),d) einem in dem Speicherbehälter (12) angeordneten Brauchwasserwärmetauscher (24) zur Erwärmung von durchlaufendem Brauchwasser unter Wärmeentnahme aus der Wärmespeicherflüssigkeit (14).
- Heizeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Primärwärmetauscher (20), der Ladewärmetauscher (22) und der Brauchwasserwärmetauscher (24) zur Bildung einer Warmzone (76) in der Wärmespeicherflüssigkeit (14) vorzugsweise mit derselben Eintauchtiefe in einem oberen Abschnitt des Speicherbehälters (12) angeordnet sind.
- Heizeinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Speicherbehälter (12) in einem vorzugsweise über mindestens 1/5 der Behälterhöhe sich erstreckenden unteren Behälterbereich zur Ausbildung einer Kaltzone (78) von Wärmetauschern freigehalten ist.
- Heizeinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß im unteren Behälterbereich des Speicherbehälters (12) die Mündungstellen (80,84) von Kollektorleitungen (82, 86) zur vorzugsweise intermittierenden Umwälzung von Wärmespeicherflüssigkeit (14) aus dem Speicherbehälter (12) über einen Solarkollektor (92) angeordnet sind.
- Heizeinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der rohrförmig langgestreckte Tauchkessel (16) von oben her zentral in den Speicherbehälter (12) eintaucht.
- Heizeinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Tauchkessel (16) durch einen Isoliermantel (60) zumindest teilweise gegenüber der Wärmespeicherflüssigkeit (14) wärmeisoliert ist.
- Heizeinrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Primärwärmetauscher (20) eine vorzugsweise durch seinen unteren Endabschnitt gebildete, direkt mit Wärmespeicherflüssigkeit (14) beaufschlagte Wärmeleitpartie (55) aufweist.
- Heizeinrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Wärmeleitpartie (55) des Primärwärmetauschers (20) mit nach außen abstehenden Wärmeleitrippen (66) versehen ist.
- Heizeinrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Tauchkessel (16) eine Abschirmung (62) zur Begrenzung einer Konvektionszone (64) in der Wärmespeicherflüssigkeit (14) aufweist.
- Heizeinrichtung nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß der Isoliermantel (60) im Bereich der Wärmeleitpartie (55) des Primärwärmetauschers (20) eine nach unten offene Isolierglocke (62) bildet, wobei zwischen der Isolierglocke (62) und dem Primärwärmetauscher (20) ein Ringraum als Konvektionszone (64) für die Wärmespeicherflüssigkeit (14) freigehalten ist.
- Heizeinrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der doppelwandig ausgebildete Primärwärmetauscher (20) einen inneren Gaskanal (42) zum Durchleiten der Verbrennungsgase und einen den Gaskanal (42) ringförmig umgebenden, mit dem Heizwasser beaufschlagbaren Heizwasserkanal (44) aufweist.
- Heizeinrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß das Heizwasser aus dem Primärwärmetauscher (20) über ein Wegeventil (71) wahlweise in einen Heizkreis (73) oder den Ladewärmetauscher (22) einspeisbar ist.
- Heizeinrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß der Speicherbehälter (12) einen an einer nach oben weisenden Behälteröffnung (28) verschließbaren, stehend aufstellbaren Behältertopf (26) umfaßt.
- Heizeinrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Speicherbehälter (12) ein den Tauchkessel (16), den Ladewärmetauscher (22) und den Brauchwasserwärmetauscher (24) tragendes Deckelteil (30) aufweist.
- Heizeinrichtung nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß der Speicherbehälter (12) vorzugsweise als zweischaliges Blasformteil aus Kunststoff besteht.
- Heizeinrichtung nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß der Speicherbehälter (12) eine Innenschale (32) und eine Außenschale (34) aus Kunststoff, vorzugsweise Polypropylen sowie eine vorzugsweise aus Polyurethan-Hartschaum gebildete Isolierschaumschicht (36) zwischen der Innen- und Außenschale aufweist.
- Heizeinrichtung nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß die Wärmespeicherflüssigkeit (14) drucklos und als abgeschlossenes Flüssigkeitsvolumen frei von Entnahme in dem Speicherbehälter (12) vorgehalten ist.
- Heizeinrichtung nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, daß der über ein Gebläse (38) mit Gas befeuerte Brenner (18) in einem einen erweiterten Brennraum (40) bildenden oberen Endabschnitt des Tauchkessels (16) angeordnet ist.
- Heizeinrichtung nach einem der Ansprüche 1 bis 18, dadurch gekennzeichnet, daß der Ladewärmetauscher durch eine vorzugsweise aus Edelstahl bestehende, den Tauchkessel (16) konzentrisch umgebende, von dem Heizwasser durchströmbare Rohrwendel (22) gebildet ist.
- Heizeinrichtung nach einem der Ansprüche 1 bis 19, dadurch gekennzeichnet, daß der Brauchwasserwärmetauscher durch ein aus Kunststoffrohren vorzugsweise aus extrudiertem Polyethylen bestehendes, vom Brauchwasser durchströmtes ringförmiges Rohrregister (24) gebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10110527A DE10110527A1 (de) | 2001-03-05 | 2001-03-05 | Heizeinrichtung zur kombinierten Heiz- und Brauchwassererwärmung |
DE10110527 | 2001-03-05 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP1239236A2 true EP1239236A2 (de) | 2002-09-11 |
EP1239236A3 EP1239236A3 (de) | 2004-03-10 |
EP1239236B1 EP1239236B1 (de) | 2006-08-09 |
EP1239236B8 EP1239236B8 (de) | 2006-10-04 |
Family
ID=7676350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01130360A Expired - Lifetime EP1239236B8 (de) | 2001-03-05 | 2001-12-20 | Heizeinrichtung zur kombinierten Heiz- und Brauchwassererwärmung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1239236B8 (de) |
AT (1) | ATE335969T1 (de) |
DE (2) | DE10110527A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT500603A1 (de) * | 2004-07-30 | 2006-02-15 | Walter Hager | Speicherkessel |
US7415944B2 (en) | 2004-11-12 | 2008-08-26 | Christopher Charles Farrell | Heat exchanger suitable for a boiler, and a boiler including such a heat exchanger |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1707895A3 (de) | 2005-03-07 | 2009-06-03 | ROTEX Heating Systems GmbH | Primärwärmetauscher für eine Heizeinrichtung |
DE102008042301A1 (de) * | 2008-08-12 | 2010-02-25 | Maincor Ag | Verfahren zur Herstellung eines Kunststoffrohrs, insbesondere für eine Wassererwärmungsvorrichtung, und Wassererwärmungsvorrichtung |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH194702A (de) * | 1936-12-19 | 1937-12-31 | Mueller Jakob | Heizkessel mit Durchlauferhitzer. |
DE1579857A1 (de) * | 1965-02-05 | 1970-08-27 | Della Croce Michel | Zentralheizungsblock mit eingebautem Heizoelbehaelter |
GB1446090A (en) * | 1972-12-14 | 1976-08-11 | Saunier Duval | Heat exchanger |
US4170199A (en) * | 1978-05-22 | 1979-10-09 | Regor Energy Saver Inc. | Closed heat transfer system |
US4226195A (en) * | 1978-12-22 | 1980-10-07 | Lindroos Martii K | Water heating stove |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH382203A (de) * | 1961-03-08 | 1964-09-30 | Von Roll Ag | Wärmeaustauscher |
CH624206A5 (de) * | 1977-02-18 | 1981-07-15 | Eugen Josef Siegrist | |
DE2820748A1 (de) * | 1978-05-12 | 1979-11-22 | Froeling Kessel App | Heizkessel |
CA1160916A (en) * | 1981-04-01 | 1984-01-24 | Lars-Olof Borking | Boiler for domestic heating system |
DE3230117A1 (de) * | 1982-08-13 | 1984-02-16 | Rolf Göhring Heizungsbau, 7464 Schömberg | Heizungs- und warmwasserbereitungseinrichtung |
DE9301606U1 (de) * | 1993-02-05 | 1994-06-01 | Viessmann Werke Kg | Wärmeerzeuger für Warmwasserbereitung und Heizbetrieb |
DE9315785U1 (de) * | 1993-10-16 | 1993-12-23 | Binkert Hugo | Multivalente Heizungsanlage |
-
2001
- 2001-03-05 DE DE10110527A patent/DE10110527A1/de not_active Withdrawn
- 2001-12-20 EP EP01130360A patent/EP1239236B8/de not_active Expired - Lifetime
- 2001-12-20 AT AT01130360T patent/ATE335969T1/de active
- 2001-12-20 DE DE50110693T patent/DE50110693D1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH194702A (de) * | 1936-12-19 | 1937-12-31 | Mueller Jakob | Heizkessel mit Durchlauferhitzer. |
DE1579857A1 (de) * | 1965-02-05 | 1970-08-27 | Della Croce Michel | Zentralheizungsblock mit eingebautem Heizoelbehaelter |
GB1446090A (en) * | 1972-12-14 | 1976-08-11 | Saunier Duval | Heat exchanger |
US4170199A (en) * | 1978-05-22 | 1979-10-09 | Regor Energy Saver Inc. | Closed heat transfer system |
US4226195A (en) * | 1978-12-22 | 1980-10-07 | Lindroos Martii K | Water heating stove |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT500603A1 (de) * | 2004-07-30 | 2006-02-15 | Walter Hager | Speicherkessel |
AT500603B1 (de) * | 2004-07-30 | 2006-11-15 | Walter Hager | Speicherkessel |
US7415944B2 (en) | 2004-11-12 | 2008-08-26 | Christopher Charles Farrell | Heat exchanger suitable for a boiler, and a boiler including such a heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
ATE335969T1 (de) | 2006-09-15 |
EP1239236A3 (de) | 2004-03-10 |
DE50110693D1 (de) | 2006-09-21 |
EP1239236B1 (de) | 2006-08-09 |
DE10110527A1 (de) | 2002-09-12 |
EP1239236B8 (de) | 2006-10-04 |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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