EP0689013A1 - Small boiler with domestic hot water production - Google Patents

Small boiler with domestic hot water production Download PDF

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Publication number
EP0689013A1
EP0689013A1 EP95109397A EP95109397A EP0689013A1 EP 0689013 A1 EP0689013 A1 EP 0689013A1 EP 95109397 A EP95109397 A EP 95109397A EP 95109397 A EP95109397 A EP 95109397A EP 0689013 A1 EP0689013 A1 EP 0689013A1
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EP
European Patent Office
Prior art keywords
small boiler
housing
pipes
boiler according
gas
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.)
Withdrawn
Application number
EP95109397A
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German (de)
French (fr)
Inventor
Helmut Prof. Dr. Ing. Burger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Viessmann Werke GmbH and Co KG
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Viessmann Werke GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Viessmann Werke GmbH and Co KG filed Critical Viessmann Werke GmbH and Co KG
Publication of EP0689013A1 publication Critical patent/EP0689013A1/en
Withdrawn legal-status Critical Current

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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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • F24H1/28—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
    • F24H1/287—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes with the fire tubes arranged in line with the combustion chamber

Definitions

  • the invention relates to a small boiler with hot water preparation, consisting of an upper water-carrying housing with a combustion chamber and a lower water-carrying housing, under which the heating gas collection chamber is arranged, the two housings provided with heat transfer medium connections being connected to one another by overflow pipes and the heating gas pull pipes leading to the heating gas collection chamber being arranged in the overflow pipes are.
  • boilers of the type mentioned are not known as small boilers, for example according to DE-A-32 38 603 and 33 47 559.
  • the generic design of the boiler relates to DE-A-33 47 559, the boiler of which comes close to that of DE-A-32 38 603 insofar as the overflow pipes are also penetrated by the heating gas pipes.
  • the upper and lower housings are only separated from one another by a wall. Domestic hot water preparation is not provided for both boilers, both of which are intended for medium and large output ranges.
  • the invention has for its object to remodel a boiler of the generic type as a small boiler and thus improve that it can be used in a simple manner despite the design as a small boiler in addition to the continuous heating of process water.
  • the small boiler basically consists of an upper water-carrying housing 1 with a combustion chamber 3 and a lower water-carrying housing 2, under which the heating gas collecting chamber 4 is arranged, the two housing 1 provided with heat transfer medium connections 5, 6, 2 connected to each other by overflow pipes 7 and in the overflow pipes 7 the heating gas pull pipes 8 leading to the heating gas collecting chamber 4 are arranged, that is, use is made of known features in this respect.
  • the two housings 1, 2 are connected by a common enclosure wall 9, which in the lower region above the end wall 2 'of the lower housing 2 with a cold water supply connection 10 and in the region under the end wall 1' of Upper housing 1 is provided with a hot water discharge connection 11, and that a gas surface burner 3 'is arranged in the combustion chamber 3.
  • the box shape shown schematically and in perspective in FIG. 1 is in no way mandatory, i.e. the cross-section of the entire housing can also be square or circular, which ultimately depends on the cross-sectional shape of the gas surface burner 3 'that is to be used.
  • the use of a gas surface burner results in a small height dimension of the combustion chamber, which would not be achievable with normal fan burners.
  • the enclosing wall 9 also forms, at least in part, that of the heating gas collecting chamber applies to the exemplary embodiment shown, since here an exhaust gas box 4 'with an exhaust gas connection 4' 'and a condensate drain 4' 'is arranged on the side at the bottom, ie the relevant part 9' of the enclosing wall 9 extends only to the upper edge of the exhaust gas box 4 '.
  • At least the heating gas pull pipes 8 can advantageously be designed as pipes with helically twisted walls, ie it is also possible to use pipes for the overflow pipes 7 which, and this also applies to the heating gas pull pipes 8 their end areas to be welded are smooth cylindrical.
  • the boiler is supposed to be a small boiler, the dimensions of which are of the order of only about 300H x 200B x 100T, the use of such pipes, which are known per se, is of particular importance. Due to the small dimensions and the low material requirement, at least the hot gas-carrying rooms R are advantageously made of stainless steel walls, i.e. the entire small boiler can also be made of stainless steel, justifiable from the box.
  • overflow pipes 7 also consist of pipes with helically shaped walls, these are expediently rectified in terms of their slope with those of the heating gas pipes 8.
  • the entire central area of the boiler thus represents not only a highly effective secondary heating surface for gas / water, but also a heat exchanger for water / water, which is ultimately achieved in the simplest way by encasing this area with the enclosing wall 9.

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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)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

The boiler has an upper water feed housing (1) with a combustion chamber (3), containing a gas burner and a lower water feed housing (2), below a hot gas collection chamber (4). The heat carrier medium connections (5,6) of both housings are coupled together via overflow pipes (7), enclosing the hot gas pipes (8) associated with the hot gas collection space. Both housings have a common enclosing wall (9), provided with a cold water feed connection (10) at the bottom part and with warm water take-off connection (11) at the upper part. <IMAGE>

Description

Die Erfindung betrifft einen Kleinheizkessel mit Brauchwasserbereitung, bestehend aus einem oberen wasserführenden Gehäuse mit Brennkammer und einem unteren wasserführenden Gehäuse, unter dem die Heizgassammelkammer angeordnet ist, wobei die beiden mit Wärmeträgermediumsanschlüssen versehenen Gehäuse durch Überströmrohre miteinander verbunden und in den Überströmrohren die zur Heizgassammelkammer führenden Heizgaszugrohre angeordnet sind.The invention relates to a small boiler with hot water preparation, consisting of an upper water-carrying housing with a combustion chamber and a lower water-carrying housing, under which the heating gas collection chamber is arranged, the two housings provided with heat transfer medium connections being connected to one another by overflow pipes and the heating gas pull pipes leading to the heating gas collection chamber being arranged in the overflow pipes are.

Heizkessel der genannten Art sind allerdings nicht als Kleinheizkessel bspw. nach den DE-A-32 38 603 und 33 47 559 bekannt. Die gattungsgemäße Ausbildung des Heizkessels bezieht sich dabei auf die DE-A-33 47 559, deren Heizkessel der nach der DE-A-32 38 603 insoweit nahekommt, als hierbei die Überströmrohre ebenfalls von den Heizgaszugrohren durchgriffen werden. Die oberen und unteren Gehäuse sind dabei jedoch lediglich durch eine Wand voneinander getrennt. Eine Brauchwasserbereitung ist bei beiden Kesseln nicht vorgesehen, die im übrigen beide für mittlere und große Leistungsbereiche bestimmt sind.However, boilers of the type mentioned are not known as small boilers, for example according to DE-A-32 38 603 and 33 47 559. The generic design of the boiler relates to DE-A-33 47 559, the boiler of which comes close to that of DE-A-32 38 603 insofar as the overflow pipes are also penetrated by the heating gas pipes. However, the upper and lower housings are only separated from one another by a wall. Domestic hot water preparation is not provided for both boilers, both of which are intended for medium and large output ranges.

Die Unterbringung von brauchwasserführenden Räumen wäre bei beiden Heizkesseln nur unter Vergrößerung des oberen Gehäuses möglich, und zwar praktisch nur in Form bspw. einer dort einzusetzenden Rohrwendel.In the case of both boilers, it would only be possible to accommodate hot water-carrying rooms by enlarging the upper housing, and practically only in the form of, for example, a pipe coil to be used there.

Der Erfindung liegt die Aufgabe zugrunde, einen Heizkessel der gattungsgemäßen Art als Kleinheizkessel dahingehend umzugestalten und damit zu verbessern, daß dieser auf einfache Weise trotz Bemessung als Kleinheizkessel zusätzlich zur Durchlauferhitzung von Brauchwasser nutzbar ist.The invention has for its object to remodel a boiler of the generic type as a small boiler and thus improve that it can be used in a simple manner despite the design as a small boiler in addition to the continuous heating of process water.

Diese Aufgabe ist mit einem Kleinheizkessel unter Zugrundelegung der gattungsgemäßen Bauart nach der Erfindung dadurch gelöst, daß die beiden Gehäuse durch eine gemeinsame Umschließungswand verbunden sind, die im unteren Bereich über der Abschlußwand des unteren Gehäuses mit einem Kaltwasserzufuhranschluß und im Bereich unter der Abschlußwand des oberen Gehäuses mit einem Warmwasserabfuhranschluß versehen ist, und daß in der Brennkammer ein Gasflächenbrenner angeordnet ist.This object is achieved with a small boiler on the basis of the generic type according to the invention in that the two housings are connected by a common enclosure wall, which in the lower area above the end wall of the lower housing with a cold water supply connection and in the area under the end wall of the upper housing is provided with a hot water discharge connection, and that a gas surface burner is arranged in the combustion chamber.

Soweit überhaupt ein Größenvergleich mit dem Heizkessel nach der DE-A-33 47 559 möglich ist, führen einerseits die Anordnung eines Gasflächenbrenners zu einer wesentlichen Größenreduzierung des die Brennkammer enthaltenden oberen Gehäuses und andererseits wird der beim Kessel nach der DE-A-33 47 559 zwischen den beiden Gehäuse verfügbare, von den Überström- und Heizgaszugrohren durchgriffene Freiraum ausgenutzt, und zwar ohne Gehäusevergrößerung, um damit einen Durchströmraum für das Brauchwasser zu schaffen. Das Ganze ist dabei noch mit dem Vorteil verbunden, daß der neugeschaffene Brauchwasserraum für die Überströmrohre gewissermaßen eine Wärmeisolation nach außen darstellt.Insofar as a size comparison with the boiler according to DE-A-33 47 559 is possible at all, the arrangement of a gas surface burner on the one hand leads to a substantial reduction in size of the upper housing containing the combustion chamber and, on the other hand, that of the boiler according to DE-A-33 47 559 available space between the two housings, which is penetrated by the overflow and heating gas pipes, is used without enlarging the housing in order to create a throughflow space for the process water. The whole thing is associated with the advantage that the newly created process water space for the overflow pipes represents a kind of thermal insulation to the outside.

Vorteilhafte weitere Ausgestaltungen ergeben sich nach den Unteransprüchen, die im einzelnen nachfolgend anhand der zeichnerischen Darstellung eines Ausführungsbeispieles auch mit näher erläutert werden.Advantageous further developments result from the subclaims, which are also explained in more detail below with reference to the drawing of an exemplary embodiment.

Es zeigt schematisch

Fig. 1
perspektivisch und im Schnitt das Konstruktionsprinzip des Kleinheizkessels;
Fig. 2
im Schnitt den Kessel gemäß Fig. 1 mit der Gasführung;
Fig. 3
im Schnitt den Kessel gemäß Fig. 1 mit der Wärmeträgerführung;
Fig. 4
im Schnitt den Kessel gemäß FIg. 1 mit der Brauchwasserzufuhr und
Fig. 5
im Schnitt den Kessel mit an die Brennerform angepaßter Brennkammerform.
It shows schematically
Fig. 1
in perspective and in section the design principle of the small boiler;
Fig. 2
in section the boiler of Figure 1 with the gas guide.
Fig. 3
in section the boiler of Figure 1 with the heat transfer medium.
Fig. 4
on average the boiler according to FIg. 1 with the hot water supply and
Fig. 5
on average the boiler with the shape of the combustion chamber.

Wie aus den Fig. 1 bis 5 ersichtlich, besteht der Kleinheizkessel grundsätzlich aus einem oberen wasserführenden Gehäuse 1 mit Brennkammer 3 und einem unteren wasserführenden Gehäuse 2, unter dem die Heizgassammelkammer 4 angeordnet ist, wobei die beiden mit Wärmeträgermediumsanschlüssen 5, 6 versehenen GEhäuse 1, 2 durch Überströmrohre 7 miteinander verbunden und in den Überströmrohren 7 die zur Heizgassammelkammer 4 führenden Heizgaszugrohre 8 angeordnet sind, d.h., insoweit ist von bekannten Merkmalen Gebrauch gemacht. Darüber hinausgehend ist aber für den Kleinheizkessel wesentlich, daß die beiden Gehäuse 1, 2 durch eine gemeinsame Umschließungswand 9 verbunden sind, die im unteren Bereich über der Abschlußwand 2' des unteren Gehäuses 2 mit einem Kaltwasserzufuhranschluß 10 und im Bereich unter der Abschlußwand 1' des oberen Gehäuses 1 mit einem Warmwasserabfuhranschluß 11 versehen ist, und daß in der Brennkammer 3 ein Gasflächenbrenner 3' angeordnet ist.As can be seen from FIGS. 1 to 5, the small boiler basically consists of an upper water-carrying housing 1 with a combustion chamber 3 and a lower water-carrying housing 2, under which the heating gas collecting chamber 4 is arranged, the two housing 1 provided with heat transfer medium connections 5, 6, 2 connected to each other by overflow pipes 7 and in the overflow pipes 7 the heating gas pull pipes 8 leading to the heating gas collecting chamber 4 are arranged, that is, use is made of known features in this respect. In addition, it is essential for the small boiler that the two housings 1, 2 are connected by a common enclosure wall 9, which in the lower region above the end wall 2 'of the lower housing 2 with a cold water supply connection 10 and in the region under the end wall 1' of Upper housing 1 is provided with a hot water discharge connection 11, and that a gas surface burner 3 'is arranged in the combustion chamber 3.

Die in Fig. 1 schematisch und perspektivisch dargestellte Kastenform ist keineswegs zwingend, d.h., das Gesamtgehäuse kann im Querschnitt auch quadratisch oder kreisförmig ausgebildet sein, was sich letztlich nach der Querschnittsform des Gasflächenbrenners 3' richtet, der zur Anwendung kommen soll. Durch die Verwendung eines Gasflächenbrenners ergibt sich eine geringe Höhenbemessung der Brennkammer, wie sie bei normalen Gebläsebrennern nicht erreichbar wäre.The box shape shown schematically and in perspective in FIG. 1 is in no way mandatory, i.e. the cross-section of the entire housing can also be square or circular, which ultimately depends on the cross-sectional shape of the gas surface burner 3 'that is to be used. The use of a gas surface burner results in a small height dimension of the combustion chamber, which would not be achievable with normal fan burners.

Daß die Umschließungswand 9 zumindest zum Teil auch die der Heizgassammelkammer bildet, trifft für das dargestellte Ausführungsbeispiel zu, da hierbei unten seitlich ein Abgaskasten 4' mit Abgasanschluß 4'' und Kondensatablauf 4'' angeordnet ist, d.h., der diesbezügliche Teil 9' der Umschließungswand 9 erstreckt sich nur bis Oberkante Abgaskasten 4'.The fact that the enclosing wall 9 also forms, at least in part, that of the heating gas collecting chamber applies to the exemplary embodiment shown, since here an exhaust gas box 4 'with an exhaust gas connection 4' 'and a condensate drain 4' 'is arranged on the side at the bottom, ie the relevant part 9' of the enclosing wall 9 extends only to the upper edge of the exhaust gas box 4 '.

Wie in Fig. 2 angedeutet können vorteilhaft mindestens die Heizgaszugrohre 8 als Rohre mit schraubenlinienförmig verwundenen Wänden ausgebildet sein, d.h., es ist auch möglich, für die Überströmrohre 7 ebenfalls solche Rohre zu verwenden, die, und das gilt auch für die Heizgaszugrohre 8, an ihren einzuschweißenden Endbereichen glatt zylindrisch ausgebildet sind.As indicated in FIG. 2, at least the heating gas pull pipes 8 can advantageously be designed as pipes with helically twisted walls, ie it is also possible to use pipes for the overflow pipes 7 which, and this also applies to the heating gas pull pipes 8 their end areas to be welded are smooth cylindrical.

Da es sich beim Heizkessel um einen Kleinheizkessel handeln soll, dessen Abmessungen in der Größenordnung nur von etwa 300H x 200B x 100T liegen, hat die Verwendung solcher an sich bekannter Rohre besondere Bedeutung. Aufgrund der kleinen Abmessungen und des insoweit geringen Materialbedarfes sind vorteilhaft mindestens die heizgasführenden Räume R von Wänden aus Edelstahl gebildet, d.h., es kann auch, von dem Kasten her vertretbar, der gesamte Kleinheizkessel aus Edelstahl gebildet werden.Since the boiler is supposed to be a small boiler, the dimensions of which are of the order of only about 300H x 200B x 100T, the use of such pipes, which are known per se, is of particular importance. Due to the small dimensions and the low material requirement, at least the hot gas-carrying rooms R are advantageously made of stainless steel walls, i.e. the entire small boiler can also be made of stainless steel, justifiable from the box.

Sofern auch die Überströmrohre 7 aus Rohren mit schraubenlinienförmig ausgebildeten Wänden bestehen, sind diese bezüglich ihrer Steigung zweckmäßig mit denen der Heizgasrohre 8 gleichgerichtet.If the overflow pipes 7 also consist of pipes with helically shaped walls, these are expediently rectified in terms of their slope with those of the heating gas pipes 8.

Die Fig. 2 bis 4 dienen im Grunde nur zur übersichtlichen Verdeutlichung der Strömung der beteiligten Komponenten, woraus sich ergibt, daß die Heizgase zum Wärmeträgermedium im wesentlichen Wärmeübertragungsbereich im Gegenstrom und das Brauchwasser zum Wärmeträgermedium im Querstrom den Heizkessel passieren.2 to 4 serve basically only to clearly illustrate the flow of the components involved, which means that the heating gases to the heat transfer medium essentially pass the heat transfer area in countercurrent and the process water to the heat transfer medium in cross flow pass the boiler.

Der ganze mittlere Bereich des Heizkessels stellt also nicht nur eine hochwirksame Nachschaltheizfläche für Gas/Wasser, sondern gleichzeitig auch einen Wärmetauscher für Wasser/Wasser dar, was letztlich auf einfachste Weise durch die Ummantelung dieses Bereiches mit der Umschließungswand 9 erreicht wird.The entire central area of the boiler thus represents not only a highly effective secondary heating surface for gas / water, but also a heat exchanger for water / water, which is ultimately achieved in the simplest way by encasing this area with the enclosing wall 9.

Claims (6)

Kleinheizkessel mit Brauchwasserbereitung, bestehend aus einem oberen wasserführenden Gehäuse (1) mit Brennkammer (3) und einem unteren wasserführenden Gehäuse (2), unter dem die Heizgassammelkammer (4) angeordnet ist, wobei die beiden mit Wärmeträgermediumsanschlüssen (5, 6) versehenen Gehäuse (1, 2) durch Überströmrohre (7) miteinander verbunden und in den Überströmrohren (7) die zur Heizgassammelkammer (4) führenden Heizgaszugrohre (8) angeordnet sind,
dadurch gekennzeichnet,
daß die beiden Gehäuse (1, 2) durch eine gemeinsame Umschließungswand (9) verbunden sind, die im unteren Bereich über der Abschlußwand (2') des unteren Gehäuses (2) mit einem Kaltwasserzufuhranschluß (10) und im Bereich unter der Abschlußwand (1') des oberen Gehäuses (1) mit einem Warmwasserabfuhranschluß (11) versehen ist, und daß in der Brennkammer (3) ein Gasflächenbrenner (3') angeordnet ist.Small boiler with process water preparation, consisting of an upper water-carrying housing (1) with combustion chamber (3) and a lower water-carrying housing (2), below which the heating gas collecting chamber (4) is arranged, the two housings (5, 6) provided with heat transfer medium connections (5, 6) 1, 2) connected to one another by overflow pipes (7) and in the overflow pipes (7) the heating gas pull pipes (8) leading to the heating gas collecting chamber (4) are arranged,
characterized,
that the two housings (1, 2) are connected by a common enclosing wall (9) which in the lower region above the end wall (2 ') of the lower housing (2) with a cold water supply connection (10) and in the region under the end wall (1 ') of the upper housing (1) is provided with a hot water discharge connection (11), and that a gas surface burner (3') is arranged in the combustion chamber (3). Kleinheizkessel nach Anspruch 1,
dadurch gekennzeichnet,
daß die Umschließungswand (9) zumindest zum Teil auch die Umschließungswand (9) der Heizgassammelkammer (8) bildet.Small boiler according to claim 1,
characterized,
that the enclosing wall (9) at least partly also forms the enclosing wall (9) of the heating gas collecting chamber (8). Kleinheizkessel nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß mindestens die Heizgaszugrohre (8) als Rohre mit schraubenlinienförmig verwundenen Wänden (8') ausgebildet sind.Small boiler according to claim 1 or 2,
characterized,
that at least the Heizgaszugrohre (8) are designed as tubes with helically twisted walls (8 '). Kleinheizkessel nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß mindestens die heizgasführenden Räume (R) von Wänden aus Edelstahl gebildet sind.Small boiler according to one of claims 1 to 3,
characterized,
that at least the hot gas-carrying rooms (R) are formed by walls made of stainless steel. Kleinheizkessel nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß der die Brennkammer (3) nach oben abschließende Gasflächenbrenner (3) im wesentlichen halbkugelförmig ausgebildet ist.Small boiler according to one of claims 1 to 4,
characterized,
that the gas chamber burner (3) closing the combustion chamber (3) at the top is essentially hemispherical. Kleinheizkessel nach Anspruch 5,
dadurch gekennzeichnet,
daß die Begrenzungswand (1'') des oberen Gehäuses (1) im wesentlichen an die Form des Gasflächenbrenners (3) angepaßt ausgebildet ist.Small boiler according to claim 5,
characterized,
that the boundary wall (1 '') of the upper housing (1) is essentially adapted to the shape of the gas surface burner (3).
EP95109397A 1994-06-23 1995-06-17 Small boiler with domestic hot water production Withdrawn EP0689013A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9410136U DE9410136U1 (en) 1994-06-23 1994-06-23 Small boiler with hot water preparation
DE9410136U 1994-06-23

Publications (1)

Publication Number Publication Date
EP0689013A1 true EP0689013A1 (en) 1995-12-27

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EP95109397A Withdrawn EP0689013A1 (en) 1994-06-23 1995-06-17 Small boiler with domestic hot water production

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EP (1) EP0689013A1 (en)
DE (1) DE9410136U1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH509552A (en) * 1970-11-20 1971-06-30 Truebbach Apparatebau Ag boiler
FR2392329A1 (en) * 1977-05-26 1978-12-22 Harton Heating Appliances Ltd EQUIPMENT FOR SUPPLYING HOT WATER TO INDIVIDUAL CENTRAL HEATING AND HOT WATER CIRCUITS FOR DOMESTIC USE
DE3238603A1 (en) 1982-10-19 1984-05-03 Hans Dr.h.c. 3559 Battenberg Vießmann Condensation heating boiler
DE3347559A1 (en) 1983-12-30 1985-07-18 Hans Dr.h.c. 3559 Battenberg Vießmann Low temperature heating boiler, especially for the medium and large power ranges
DE9301606U1 (en) * 1993-02-05 1994-06-01 Viessmann Werke Gmbh & Co, 35108 Allendorf Heat generator for water heating and heating operation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH509552A (en) * 1970-11-20 1971-06-30 Truebbach Apparatebau Ag boiler
FR2392329A1 (en) * 1977-05-26 1978-12-22 Harton Heating Appliances Ltd EQUIPMENT FOR SUPPLYING HOT WATER TO INDIVIDUAL CENTRAL HEATING AND HOT WATER CIRCUITS FOR DOMESTIC USE
DE3238603A1 (en) 1982-10-19 1984-05-03 Hans Dr.h.c. 3559 Battenberg Vießmann Condensation heating boiler
DE3347559A1 (en) 1983-12-30 1985-07-18 Hans Dr.h.c. 3559 Battenberg Vießmann Low temperature heating boiler, especially for the medium and large power ranges
DE9301606U1 (en) * 1993-02-05 1994-06-01 Viessmann Werke Gmbh & Co, 35108 Allendorf Heat generator for water heating and heating operation

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Publication number Publication date
DE9410136U1 (en) 1994-08-11

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