EP0038964B1 - Water storage heaters - Google Patents

Water storage heaters Download PDF

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Publication number
EP0038964B1
EP0038964B1 EP81102604A EP81102604A EP0038964B1 EP 0038964 B1 EP0038964 B1 EP 0038964B1 EP 81102604 A EP81102604 A EP 81102604A EP 81102604 A EP81102604 A EP 81102604A EP 0038964 B1 EP0038964 B1 EP 0038964B1
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EP
European Patent Office
Prior art keywords
water
heater
continuous flow
flow heater
pipe socket
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.)
Expired
Application number
EP81102604A
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German (de)
French (fr)
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EP0038964A2 (en
EP0038964A3 (en
Inventor
Rolf Ing. Grad. Kurz
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Forbach GmbH and Co KG
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Forbach GmbH and Co KG
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Application filed by Forbach GmbH and Co KG filed Critical Forbach GmbH and Co KG
Priority to AT81102604T priority Critical patent/ATE4934T1/en
Publication of EP0038964A2 publication Critical patent/EP0038964A2/en
Publication of EP0038964A3 publication Critical patent/EP0038964A3/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems

Definitions

  • the invention relates to a water storage heater, in particular for domestic water preparation, with a storage container which has a lower pipe socket for the cold water and an upper pipe socket for the hot water, both pipe sockets being connected via a line to a continuous-flow heater which has a temperature sensor, and in a shut-off device and a circulating pump are arranged in the branch line leaving the cold water pipe socket.
  • a water storage heater of this type is the subject of DE-B-26 41 601.
  • the contents of the storage container are heated by the flow heater connected or arranged in parallel with the storage container, especially during the low tariff period. This is done in such a way that the storage water is circulated by means of a pump for so long. H. is pumped through the instantaneous water heater until it has reached the required or set temperature. When this temperature is reached, the temperature sensor in the instantaneous water heater switches off its heating and the circulation pump. If the storage water needs to be reheated during the high tariff period, the water heater and the circulation pump are switched on via a further temperature sensor in the storage tank and part of the storage water is heated. The hot water is drawn directly from the storage tank.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of developing a water storage heater of the type mentioned in such a way that with or during the dispensing process a reheating or heating of the water removed from the storage tank to higher than the temperature of the storage water Tap temperatures are possible.
  • the invention advantageously achieves that the water to be drawn is always supplied to the tapping points via the water heater, so that the heated storage water can be brought to elevated temperatures at any time during the tapping process.
  • This has the advantage that it is sufficient to keep the storage water ready at a low temperature of approx. 45 ° C., as a result of which excessive high cooling losses are avoided or kept within reasonable limits.
  • An additional temperature sensor in the storage tank is also not required here, in contrast to the known water storage heater.
  • a storage tank 1 has a cold water pipe socket 2 at the bottom and a hot water pipe socket 3 at the top.
  • the cold water pipe socket 2 is connected, on the one hand, to a cold water supply line 4 and, on the other hand, a branch line 6 leading to a water heater 5 branches off from this.
  • a solenoid valve 7 and a circulation pump 8 equipped with a continuously variable hydraulic control are arranged as a shut-off device. Due to the infinitely variable hydraulic control of the circulation pump 8, the heating-up speed of the storage water can be adapted by a flow-controlled output to the release times for the low tariff individually determined by the energy supply companies.
  • a pipeline 9 also leads from the upper hot water pipe socket 3 to the aforementioned instantaneous water heater 5.
  • a supply line 10 leads from the instantaneous water heater 5 and from the cold water branch line 6 leading to the instantaneous water heater 5 to a plurality of tapping points 11, 11 ', 11 ". 11 ', 11 “are expediently equipped with a setpoint generator 12, 12', 12" each influencing the temperature sensor 14 of the water heater and thus adjusting or preselecting the water outlet temperature works and in the hydraulic system of which a flow-dependent controlled contact 13 is provided, which controls the circuit to the solenoid valve 7 and the circulation pump 8 and which keeps the circulation pump 8 and the solenoid valve 7 closed during operation. Furthermore, this water heater has a temperature sensor 14, which via a switch direction switches the heater of the instantaneous water heater depending on the temperature.
  • the operation of the device is approximately as follows: At low tariff times, i.e. especially during the night, a so-called. Low-tariff circuit NT put the circulation pump 8 into operation.
  • the solenoid valve 7 acting as a shut-off device in the branch line 6 is open.
  • the circulation pump 8 now works until the storage water in the storage tank 1 the desired temperature of z. B. 45 ° C. If this desired temperature is reached, the temperature sensor 14 is acted upon in the instantaneous heater 5 and causes the power of the instantaneous water heater 5 to be switched off.
  • the storage water in the storage tank is preferably heated from top to bottom. The storage water is circulated until it has reached the aforementioned temperature.
  • the flow-dependent contact 13 opens, as a result of which the circuit of the solenoid valve 7 and the circulation pump is interrupted, so that the solenoid valve 7 is closed and the circulation pump 8 is switched off the cold water supply line 4.
  • the preheated storage water flowing through the heater 5 to the individual dispensing points 11 to 11 is now heated from approximately 45 ° C. to a higher final temperature of approximately 60 ° C. or above, or it is heated to a brought to between 45 ° C and 60 ° C by means of the setpoint sensors 12 to 12 "assigned to the tapping points.
  • An additional bypass switch 15 could also make it possible to carry out reheating of the storage water during certain times of the day with low or high tariffs outside the nightly low tariff period with an increased circulation pump output and an associated higher electronically controlled heating output of the instantaneous water heater 5.
  • the application of the invention can be retrofitted to any storage tank 1, since all switching and functional elements are accommodated in the water heater or the pipeline. It ideally complements domestic water heating systems that work with heat pumps or in solar or waste heat mode or that can carry out electrical heating and reheating in a bi- and multivalent system.

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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)
  • Cookers (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

1. A water storage heater, particularly for preparing non-potable water, having a storage tank (1) which comprises a lower pipe socket (2) for the cold water and an upper pipe socket (3) for the hot water, each pipe socket (2, 3) being connected to a continuous flow heater (5) through a pipeline (6 or 9), which continuous flow heater comprises a temperature sensor (14), and a shut-off device (7) and a circulating pump (8) are disposed in the branch pipe (6) leading off from the cold-water pipe socket (2), characterised in that a supply pipe (10) for one or more taps (11, 11', 11") is connected to the continuous flow heater (5) and to the cold-water branch pipe (6) leading to the continuous flow heater (5), and the continuous flow heater comprises a contact (13) which can be controlled depending on flow and which is disposed in the supply pipe (10) to control the circulating pump (8) and the shut-off device (7) constructed in the form of a magnetically operated valve, which contact causes the switching off of the circulating pump (8) and the closing of the magnetically operated valve (7) by interrupting the circuit during the drawing-off operation.

Description

Die Erfindung betrifft einen Wasserspeichererhitzer, insbesondere zur Brauchwasserbereitung, mit einem Speicherbehälter, der einen unteren Rohrstutzen für das Kaltwasser und einen oberen Rohrstutzen für das Heißwasser aufweist, wobei beide Rohrstutzen über je eine Leitung mit einem Durchlauferhitzer verbunden sind, der einen Temperaturfühler aufweist, und in der vom Kaltwasser-Rohrstutzen abgehenden Abzweigleitung eine Absperreinrichtung und eine Umwälzpumpe angeordnet sind.The invention relates to a water storage heater, in particular for domestic water preparation, with a storage container which has a lower pipe socket for the cold water and an upper pipe socket for the hot water, both pipe sockets being connected via a line to a continuous-flow heater which has a temperature sensor, and in a shut-off device and a circulating pump are arranged in the branch line leaving the cold water pipe socket.

Ein Wasserspeichererhitzer dieser Art ist Gegenstand der DE-B-26 41 601. Bei diesem Warmwasserspeichererhitzer wird durch den dem Speicherbehälter parallel geschalteten bzw. angeordneten Durchlauferhitzer vor allem während der Niedertarifzeit der Inhalt des Speicherbehälters aufgeheizt. Das geschieht dabei in der Weise, daß das Speicherwasser mittels einer Pumpe so lange umgewälzt wird, d. h. durch den Durchlauferhitzer gepumpt wird, bis dieses die notwendige bzw. eingestellte Temperatur erreicht hat. Ist diese Temperatur erreicht, schaltet der Temperaturfühler im Durchlauferhitzer dessen Beheizung und die Umwälzpumpe ab. Wird während der Hochtarifzeit eine Nachheizung des Speicherwassers erforderlich, so wird über einen weiteren Temperaturfühler im Speicherbehälter der Durchlauferhitzer sowie die Umwälzpumpe eingeschaltet und ein Teil des Speicherwassers aufgeheizt. Die Entnahme des Heißwassers erfolgt hier auf direktem Wege aus dem Speicherbehälter. Bekanntlich wird für Reinigungszwecke, z. B. Spülen, Wasser mit einer wesentlich höheren Temperatur benötigt als dies für die Körperreinigung der Fall ist. Um nun allen Erfordernissen, z. B. in einem Haushalt, gerecht zu werden, muß bei diesem Wasserspeichererhitzer das Speicherwasser auf verhältnismäßig hohe Temperaturen gebracht werden, da ein Nachheizen des Speicherwassers während des Zapfvorganges hier nicht mehr durchführbar ist. Höhere Temperaturen des Speicherswassers haben aber wiederum auch höhere Abkühlverluste zur Folge.A water storage heater of this type is the subject of DE-B-26 41 601. In this hot water storage heater, the contents of the storage container are heated by the flow heater connected or arranged in parallel with the storage container, especially during the low tariff period. This is done in such a way that the storage water is circulated by means of a pump for so long. H. is pumped through the instantaneous water heater until it has reached the required or set temperature. When this temperature is reached, the temperature sensor in the instantaneous water heater switches off its heating and the circulation pump. If the storage water needs to be reheated during the high tariff period, the water heater and the circulation pump are switched on via a further temperature sensor in the storage tank and part of the storage water is heated. The hot water is drawn directly from the storage tank. As is known, for cleaning purposes, e.g. B. rinsing, water with a much higher temperature than is required for body cleaning. In order to meet all requirements, e.g. B. in a household, in this water storage heater, the storage water must be brought to relatively high temperatures, since reheating the storage water during the tap process is no longer feasible here. However, higher temperatures in the storage water also result in higher cooling losses.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe, einen Wasserspeichererhitzer der eingangs genannten Art so weiterzubilden, daß mit dem bzw. während des Zapfvorganges ein Nachheizen bzw. Aufheizen des aus dem Speicherbehälter entnommenen Wassers auf gegenüber der Temperatur des Speicherwassers höhere Zapftemperaturen möglich ist.The invention seeks to remedy this. The invention, as characterized in the claims, solves the problem of developing a water storage heater of the type mentioned in such a way that with or during the dispensing process a reheating or heating of the water removed from the storage tank to higher than the temperature of the storage water Tap temperatures are possible.

Durch die Erfindung wird in vorteilhafter Weise erreicht, daß das zu zapfende Wasser immer über den Durchlauferhitzer den Zapfstellen zugeführt wird, so daß bei Bedarf das erwärmte Speicherwasser während des Zapfvorganges jederzeit auf erhöhte Temperaturen gebracht werden kann. Daraus ergibt sicht der Vorteil, daß es genügt, das Speicherwasser auf einer niederen Temperatur von ca. 45 °C bereitzuhalten, wodurch übermäßige hohe Abkühlungsverluste vermieden bzw. in vertretbaren Grenzen gehalten werden. Ein zusätzlicher Temperaturfühler im Speicherbehälter ist hier, im Gegensatz zum bekannten Wasserspeichererhitzer, ebenfalls nicht erforderlich.The invention advantageously achieves that the water to be drawn is always supplied to the tapping points via the water heater, so that the heated storage water can be brought to elevated temperatures at any time during the tapping process. This has the advantage that it is sufficient to keep the storage water ready at a low temperature of approx. 45 ° C., as a result of which excessive high cooling losses are avoided or kept within reasonable limits. An additional temperature sensor in the storage tank is also not required here, in contrast to the known water storage heater.

Ein Ausführungsbeispiel der Erfindung ist im Prinzip in der Zeichnung dargestellt und wird an Hand dieser nachfolgend näher beschrieben.An embodiment of the invention is shown in principle in the drawing and will be described in more detail below with reference to this.

Ein Speicherbehälter 1 weist unten einen Kaltwasser-Rohrstutzen 2 und oben einen Heißwasser-Rohrstutzen 3 auf. Der Kaltwasser-Rohrstutzen 2 ist einerseits an einer Kaltwasser-Versorgungsleitung 4 angeschlossen und andererseits geht von diesem eine zu einem Durchlauferhitzer 5 führende Abzweigleitung 6 ab. In dieser Abzweigleitung ist als Absperrorgan ein Magnetventil 7 sowie eine mit einer stufenlos hydraulischen Regelung ausgestattete Umwälzpumpe 8 angeordnet. Durch die stufenlose hydraulische Regelung der Umwälzpumpe 8 kann die Aufheizgeschwindigkeit des Speicherwassers durch eine durchflußgesteuerte Leistung auf die von den Energieversorgungsunternehmen individuell festgelegten Freigabezeiten für den Niedertarif angepaßt werden. Vom oberen Heißwasser-Rohrstutzen 3 führt eine Rohrleitung 9 ebenfalls zum vorgenannten Durchlauferhitzer 5. Vom Durchlauferhitzer 5 und von der zum Durchlauferhitzer 5 führenden Kaltwasser-Abzweigleitung 6 geht eine Versorgungsleitung 10 zu mehreren Zapfstellen 11, 11', 11" ab. Die Zapfstellen 11, 11', 11" sind zweckmäßig mit je einem den Temperaturfühler 14 des Durchlauferhitzers beeinflussenden und damit die Wasserauslauftemperatur einstellenden bzw. vorwählenden Sollwertgeber 12, 12', 12" ausgerüstet. Als Durchlauferhitzer 5 dient vorzugsweise ein mit elektronischen Mitteln gesteuerter Durchlauferhitzer, der strömungsrichtungs-unabhängig arbeitet und in dessen hydraulischen System ein strömungsabhängig gesteuerter Kontakt 13 vorgesehen ist, der den Stromkreis zum Magnetventil 7 und der Umwälzpumpe 8 beherrscht und der bei Betrieb die Umwälzpumpe 8 und das Magnetventil 7 geschlossen hält. Weiterhin weist dieser Durchlauferhitzer einen Temperaturfühler 14 auf, der über eine Schalteinrichtung die Beheitzung des Durchlauferhitzers temperaturabhängig schaltet.A storage tank 1 has a cold water pipe socket 2 at the bottom and a hot water pipe socket 3 at the top. The cold water pipe socket 2 is connected, on the one hand, to a cold water supply line 4 and, on the other hand, a branch line 6 leading to a water heater 5 branches off from this. In this branch line, a solenoid valve 7 and a circulation pump 8 equipped with a continuously variable hydraulic control are arranged as a shut-off device. Due to the infinitely variable hydraulic control of the circulation pump 8, the heating-up speed of the storage water can be adapted by a flow-controlled output to the release times for the low tariff individually determined by the energy supply companies. A pipeline 9 also leads from the upper hot water pipe socket 3 to the aforementioned instantaneous water heater 5. A supply line 10 leads from the instantaneous water heater 5 and from the cold water branch line 6 leading to the instantaneous water heater 5 to a plurality of tapping points 11, 11 ', 11 ". 11 ', 11 "are expediently equipped with a setpoint generator 12, 12', 12" each influencing the temperature sensor 14 of the water heater and thus adjusting or preselecting the water outlet temperature works and in the hydraulic system of which a flow-dependent controlled contact 13 is provided, which controls the circuit to the solenoid valve 7 and the circulation pump 8 and which keeps the circulation pump 8 and the solenoid valve 7 closed during operation. Furthermore, this water heater has a temperature sensor 14, which via a switch direction switches the heater of the instantaneous water heater depending on the temperature.

Die Arbeitsweise des Gerätes ist etwa folgende : Zur Niedertarifzeit, also besonders während der Nachtstunden wird über eine sogen. Niedertarifschaltung NT die Umwälzpumpe 8 in Betrieb gesetzt. Das als Absperrorgan wirkende Magnetventil 7 in der Abzweigleitung 6 ist dabei geöffnet. Die Umwälzpumpe 8 arbeitet nun solange, bis das Speicherwasser im Speicherbehälter 1 die gewünschte Temperatur von z. B. 45 °C hat. Ist diese gewünschte Temperatur erreicht, so wird der Temperaturfühler 14 im Durchlauferhitzer 5 entsprechend beaufschlagt und führt eine Abschaltung der Leistung des Durchlauferhitzers 5 herbei. Die Aufheizung des Speicherwassers im Speicherbehälter erfolgt vorzugsweise von oben nach unten. Das Speicherwasser wird dabei so lange umgewälzt, bis es die vorgenannte Temperatur hat. Wird nun während des Aufheizvorganges an einer der Zapfstellen 11 bis 11" Wasser gezapft, öffnet der strömungsabhängige Kontakt 13 wodurch der Stromkreis des Magnetventils 7 und der Umwälzpumpe unterbrochen wird, so daß das Magnetventil 7 geschlossen und die Umwälzpumpe 8 abgeschaltet wird. Damit werden Zumischungen aus der Kaltwasser-Versorgungsleitung 4 vermieden. Während eines Zapfvorganges wird nun das über den Durchlauferhitzer 5 zu den einzelnen Zapfstellen 11 bis 11" fließende vorgewärmte Speicherwasser von etwa 45 °C auf eine höhere Endtemperatur von etwa 60 °C oder darüber aufgeheizt oder es wird auf eine mittels der den Zapfstellen zugeordneten Sollwertgebern 12 bis 12" eingestellte bzw. vorgewählte Temperatur zwischen 45 °C und 60 °C gebracht.The operation of the device is approximately as follows: At low tariff times, i.e. especially during the night, a so-called. Low-tariff circuit NT put the circulation pump 8 into operation. The solenoid valve 7 acting as a shut-off device in the branch line 6 is open. The circulation pump 8 now works until the storage water in the storage tank 1 the desired temperature of z. B. 45 ° C. If this desired temperature is reached, the temperature sensor 14 is acted upon in the instantaneous heater 5 and causes the power of the instantaneous water heater 5 to be switched off. The storage water in the storage tank is preferably heated from top to bottom. The storage water is circulated until it has reached the aforementioned temperature. If water is drawn from one of the tapping points 11 to 11 "during the heating process, the flow-dependent contact 13 opens, as a result of which the circuit of the solenoid valve 7 and the circulation pump is interrupted, so that the solenoid valve 7 is closed and the circulation pump 8 is switched off the cold water supply line 4. During a dispensing process, the preheated storage water flowing through the heater 5 to the individual dispensing points 11 to 11 "is now heated from approximately 45 ° C. to a higher final temperature of approximately 60 ° C. or above, or it is heated to a brought to between 45 ° C and 60 ° C by means of the setpoint sensors 12 to 12 "assigned to the tapping points.

Durch einen zusätzlichen Umgehungsschalter 15 könnte noch die Möglichkeit geschaffen werden, außerhalb der nächtlichen Niedertarifzeit mit einer erhöhten Umwälzpumpenleistung und einer damit verbundenen höheren elektronisch gesteuerten Heizleistung des Durchlauferhitzers 5 ein Nachheizen des Speicherwassers während bestimmter Tageszeiten mit Nieder- oder Hochtarif vorzunehmen.An additional bypass switch 15 could also make it possible to carry out reheating of the storage water during certain times of the day with low or high tariffs outside the nightly low tariff period with an increased circulation pump output and an associated higher electronically controlled heating output of the instantaneous water heater 5.

Durch die vorgeschilderte Arbeitsweise ist die Anwendung der Erfindung bei jedem beliebigen Speicherbehälter 1 nachrüstbar, da alle Schalt-und Funktionsorgane im Durchlauferhitzer oder der Rohrleitung untergebracht sind. Sie ergänzt in idealer Weise Brauchwassererwärmungsanlagen, die mit Wärmepumpen oder im Solar- oder Abwärmebetrieb arbeiten oder im bi- und multivaluten System eine elektrische Auf- und Nachheizung vornehmen können.As a result of the above-described method of operation, the application of the invention can be retrofitted to any storage tank 1, since all switching and functional elements are accommodated in the water heater or the pipeline. It ideally complements domestic water heating systems that work with heat pumps or in solar or waste heat mode or that can carry out electrical heating and reheating in a bi- and multivalent system.

Claims (4)

1. A water storage heater, particularly for preparing non-potable water, having a storage tank (1) which comprises a lower pipe socket (2) for the cold water and an upper pipe socket (3) for the hot water, each pipe socket (2, 3) being connected to a continuous flow heater (5) through a pipeline (6 or 9), which continuous flow heater comprises a temperature sensor (14), and a shut-off device (7) and a circulating pump (8) are disposed in the branch pipe (6) leading off from the cold-water pipe socket (2), characterised in that a supply pipe (10) for one or more taps (11, 11', 11") is connected to the continuous flow heater (5) and to the cold-water branch pipe (6) leading to the continuous flow heater (5), and the continuous flow heater comprises a contact (13) which can be controlled depending on flow and which is disposed in the supply pipe (10) to control the circulating pump (8) and the shut-off device (7) constructed in the form of a magnetically operated valve, which contact causes the switching off of the circulating pump (8) and the closing of the magnetically operated valve (7) by interrupting the circuit during the drawing-off operation.
2. A water storage heater as claimed in Claim 1, characterised in that the continuous flow heater (5) is a continuous flow heater controlled by electronic means.
3. A water storage heater as claimed in Claims 1 and 2, characterised in that the contact (13) dependent on flow is integrated in the electrical system of the continuous flow heater (5).
4. A water storage heater as claimed in Claim 1, characterised in that the taps (11, 11', 11") are each equipped with a temperature director (12, 12', 12") which influences the temperature sensor (14) in the continuous flow heater (5).
EP81102604A 1980-04-30 1981-04-07 Water storage heaters Expired EP0038964B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102604T ATE4934T1 (en) 1980-04-30 1981-04-07 WATER TANK HEATER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803016639 DE3016639A1 (en) 1980-04-30 1980-04-30 WATER TANK HEATER
DE3016639 1980-04-30

Publications (3)

Publication Number Publication Date
EP0038964A2 EP0038964A2 (en) 1981-11-04
EP0038964A3 EP0038964A3 (en) 1981-12-30
EP0038964B1 true EP0038964B1 (en) 1983-10-05

Family

ID=6101335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102604A Expired EP0038964B1 (en) 1980-04-30 1981-04-07 Water storage heaters

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Country Link
EP (1) EP0038964B1 (en)
AT (1) ATE4934T1 (en)
DE (1) DE3016639A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3701832A1 (en) * 1987-01-23 1988-08-04 Stiebel Eltron Gmbh & Co Kg Hot water-supplying installation
CN110878993A (en) * 2019-12-02 2020-03-13 中北大学 Non-overflow automatic water replenishing control system and method for solar water heater

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8324996D0 (en) * 1983-09-19 1983-10-19 Lingard Eng Ltd Water heating unit
AT388045B (en) * 1986-09-11 1989-04-25 Vaillant Gmbh HOT WATER TANK
DE58903512D1 (en) * 1988-08-31 1993-03-25 Landis & Gyr Betriebs Ag SETPOINT VALUE FOR A HOT WATER TANK REGULATOR.
DE102007033564B3 (en) * 2007-07-19 2009-01-02 Robert Bosch Gmbh Method for operating a stratified charge storage and domestic hot water system
JP5084768B2 (en) * 2009-03-11 2012-11-28 リンナイ株式会社 Hot water system
DE102020106464A1 (en) * 2020-03-10 2021-09-16 Stiebel Eltron Gmbh & Co. Kg House technology device, in particular water heater, and associated method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE878264C (en) * 1948-12-31 1954-04-05 Walter Dipl-Ing Bruemmerhoff Method and device for operating a hot water storage tank
US4037786A (en) * 1975-08-15 1977-07-26 International Telephone And Telegraph Corporation Energy recovery and storage system
DE2641601B2 (en) * 1976-09-16 1979-11-15 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Water storage heater
FR2389838A2 (en) * 1977-05-04 1978-12-01 Saunier Duval Domestic hot water circulator - has branch circuit with circulation pump and storage tank of sufficient capacity to supply several taps simultaneously
FR2398976A1 (en) * 1977-07-25 1979-02-23 Saunier Duval Domestic hot water system - has instantaneous heater and hot water cylinder mounted in parallel to supply heavy flows together

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3701832A1 (en) * 1987-01-23 1988-08-04 Stiebel Eltron Gmbh & Co Kg Hot water-supplying installation
CN110878993A (en) * 2019-12-02 2020-03-13 中北大学 Non-overflow automatic water replenishing control system and method for solar water heater

Also Published As

Publication number Publication date
EP0038964A2 (en) 1981-11-04
EP0038964A3 (en) 1981-12-30
DE3016639A1 (en) 1981-11-05
ATE4934T1 (en) 1983-10-15

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