NL2003127C2

NL2003127C2 - Apparatus for dispensing hot water and/or boiling water.

Info

Publication number: NL2003127C2
Application number: NL2003127A
Authority: NL
Inventors: Jan Willem Klein Horsman; Richard Gerrit Jan Verbree
Original assignee: Inventum Holding B V
Priority date: 2009-06-18
Filing date: 2009-07-03
Publication date: 2011-01-12
Also published as: NL2003127A; EP3106774B1; EP2443397B1; DK3106774T3; WO2010147471A2; DK2443397T3; EP2443397A2; EP3106774A1; WO2010147471A3

Description

P29881NL01

Title: Apparatus for dispensing hot water and/or boiling water

The present invention relates to an apparatus for heating water and dispensing hot water and/or boiling water, e.g. for use in a domestic kitchen.

A known apparatus comprises a water mains pipe connector for connecting the apparatus to 5 a water mains pipe, and a water storage and heating reservoir. The reservoir has a bottom, a top, and an inlet connected to the water mains pipe connector for letting fresh water into the reservoir. The inlet is provided at the bottom portion of the reservoir. The reservoir furthermore has a water outlet provided at the upper portion of the reservoir, which is connectable to a tap. An electric water heating element is provided in the lower region of the 10 water reservoir above the inlet to heat the water.

It is an object of the present invention to provide an improved apparatus of this type.

It is a further object of the present invention to provide measures that allow for an improved 15 heating of the water in the reservoir, in particular for an embodiment of the apparatus wherein both hot water and boiling water can be provided by means of the apparatus.

It is a further object of the invention to provide an apparatus that can be easily installed, e.g. in a kitchen cabinet.

20

It is a further object of the invention to keep the temperature of the water as close as possible just above the boiling point. This diminishes the formation of steam during water take out.

It is a further object of the invention to provide an apparatus that can be cost-effectively 25 produced.

It is a further object of the invention to provide an boiling water system, e.g. for domestic use in a kitchen, that can be easily operated to provide a small or large quantity of boiling water.

30 It is a further object of the invention to provide an apparatus that can be easily serviced.

The invention proposes several solutions that aim to achieve one or more of the above objects.

-2 -

According to a first aspect thereof the invention provides an apparatus according to claim 1, wherein the electric water heating element is of a substantially horizontal lay-out.

5 By providing a heating element of substantially horizontal lay-out an improved heating of the water in the reservoir can be achieved. In particular the heating can be improved in regard of the desire to maintain the hot or boiling water in upper region of reservoir at an essentially constant temperature while fresh, cold water from the water mains enters the reservoir from below.

10

Further preferred embodiments of the apparatus of the first aspect of the invention are mentioned in the subclaims 2-13.

A second aspect of the invention relates to the mounting of the reservoir in the apparatus, in 15 particular in view of the cost-effective production and possibly also the servicing of the apparatus.

According to the second aspect thereof the invention provides an apparatus according to claim 14. The reservoir support member allows for a simple construction of the apparatus.

20

In a preferred embodiment the reservoir support member also serves to mount electrical components associated with the electric heater thereon.

In a preferred embodiment, in particular with the electrical components being mounted on the 25 reservoir support member, the one or more water valves, e.g. including a mixing valve, and conduits are integrated into an assembly that is supported on an upper support member arranged above the water reservoir.

A third aspect of the invention relates to the issue of providing boiling water as desired with a 30 small volumetric flow, e.g. to fill a cup, and a greater volumetric flow, e.g. to fill a kettle or a cooking pan.

According to the third aspect of the invention an apparatus as in claim 19 is provided, wherein the apparatus includes in the boiling water pipe a multiple volumetric flows valve arrangement, e.g. including two electrically operated valves in parallel, that allow a user of the boiling water tap to choose between two or possibly more different volumetric flows.

-3-

In a preferred combination of the apparatus with a boiling water tap, the boiling water tap 5 includes an electrical switch for operation by a user in order to activate the flow of boiling water, the switch being connected to the electrically operated valves, preferably such that first operation of the switch on the tap causes one valve to open, and prolonged operation of the switch cause also the second valve to open.

10 A fourth aspect of the invention relates to the filtering of boiling water. In a known apparatus a boiling water filter is housed within the reservoir, thereby requiring an installation mechanic to replace the filter.

According to the fourth aspect the invention provides an apparatus as in claim 21, thereby 15 allowing the replacement of the filter without having to open the reservoir and thus not necessitating the intervention of a skilled mechanic.

A fifth aspect of the invention relates to the combination of an apparatus for dispensing boiling water and hot water and one or more taps, e.g. a boiling water tap. As is known taps 20 dispensing in particular boiling water are prone to calcification.

According to the fifth aspect of the invention a combination is proposed as in claim 22.

A sixth aspect of the invention relates to the construction of the apparatus, in particular with 25 regard to the mixing device, preferably a thermostatic mixing valve with adjustable temperature. In a known apparatus for dispensing boiling and hot water this mixing device is a separate component to be fitted in the piping outside of the housing of the apparatus.

According to the sixth aspect of the invention an apparatus as in claim 23 is provided.

30 Herewith a simple installation of the apparatus is possible, as no separate installation of the mixing valve is needed. In a preferred embodiment only the water mains pipe and the pipes leading to the taps have to be connected to the apparatus.

In a preferred embodiment according to claim 25 the boiling water that emerges from the 35 reservoir is cooled before reaching the mixing device without adding cold water to said -4- boiling water flow. The heat exchanger may e.g. be composed of a direct contact between the pipes, e.g. a concentric arrangement, to cause heat exchange.

A seventh aspect of the invention relates to the operation of the apparatus, in particular when 5 boiling water is allowed to flow through the boiling water tap. In a known apparatus for dispensing boiling water boiling water is allowed to flow through the boiling water tap upon operation of a switch.

According to the seventh aspect of the invention an apparatus as in claim 26 is provided.

10 Herewith a safe operation of the apparatus is possible, as a security code defines whether or not boiling water is allowed to flow through the boiling water tap. For example, such a security code is defined by a combination of sequence and time of operating the switch. In a preferred embodiment, the user of the apparatus defines the security code.

15 In an exemplary example, the operating module comprises an electronic module defining the following security code: one short press on the switch, followed by pressing the switch over 0,5 seconds allows the flow of boiling water. This security code prevents the flow of boiling water when the user or children play with the switch. An alternative security code can be two short presses on the switch, followed by pressing the switch over 0,5 seconds to allow the 20 flow of boiling water. Yet an alternative, less safe security code can be pressing the switch for over 0,5 seconds.

Preferably the electronic module of the operating module is programmed such that when boiling water is allowed to flow, only a small amount of water is allowed to flow. The 25 electronic module may be programmed such that when the switch is pressed for over 10 seconds, the flow of boiling water is continuous. The flow of boiling water may be stopped by a short press on the switch, or alternatively after 3 minutes. Then an amount of 6 to 7 litres of boiling water may have flown though the boiling water tap.

30 In yet another preferred embodiment, when the electronic module is set such that when boiling water is allowed to flow, only a small amount of water is allowed to flow, the electronic module is programmed such that when the switch is pressed within 2 seconds after the flow has ended, a small amount of boiling water is allowed to flow without re-entering the security code.

35 -5-

An eight aspect of the invention relates to the construction of the apparatus, in particular with regard to the boiling water pipe. In a known apparatus deviations in the water pressure result in deviations of the water flow.

5 According to the eight aspect of the invention an apparatus as in claim 29 is provided.

Herewith a desired boiling water flow may be obtained, e.g. to compensate for water mains pressure. Preferably, the flow restrictor or flow regulator will keep the flow constant between 1 and 3 l/min, independent of the water pressure.

10 The aspects of the invention will now be explained in more detail with reference to the drawings.

The skilled person will appreciate that each aspect can be of use on its own, yet the aspects can be readily combined in all kinds of ways in an apparatus.

15 In the drawings:

Fig. 1 shows in side view a preferred embodiment of the reservoir of the apparatus according to the invention,

Fig. 2 shows the reservoir from above, 20 Fig. 3 shows the reservoir from below,

Fig. 4 shows the reservoir in perspective view,

Fig. 5 shows the reservoir in perspective view from another angle,

Fig. 6 shows the bottom portion of the reservoir in exploded view,

Fig. 7 shows the bottom portion in side view, 25 Fig. 8 shows the bottom portion in top view,

Fig. 9 shows the upper portion in perspective view,

Fig. 10 shows the upper portion in cross-section,

Fig. 11 shows the flow of water in the reservoir,

Fig. 12 shows a schematic layout of an apparatus according to an embodiment of the 30 apparatus of the invention,

Fig. 13 shows a schematic layout of an apparatus according to a second embodiment of the apparatus of the invention,

Fig. 14 shows an exploded view of the main components of a preferred embodiment of the apparatus of the invention, -6-

Fig. 15 shows a schematic layout of an apparatus according to a second embodiment of the apparatus of the invention,

Figs. 16a, b and c show a schematic layout of a hot water tap according to the invention.

5 With reference to the figures 1-11 now a preferred embodiment of the reservoir of the apparatus according to the invention will be explained.

The reservoir discussed here can be integrated in an apparatus specifically adapted for providing boiling water only, e.g. to be dispensed via a water boiling tap arranged at the 10 kitchen sink, but can also be integrated in an apparatus that not only provides boiling water but also hot water, e.g. to be supplied to a further hot and cold water tap arranged at the kitchen sink.

The apparatus comprises a water mains pipe connector for connecting the apparatus to a 15 water mains pipe (not shown in figures 1-11).

The apparatus further comprises a water storage and heating reservoir 1. The apparatus has an outer housing wherein the reservoir 1 is mounted, the housing being adapted to be mounted (e.g. in a kitchen cabinet) with the reservoir 1 in vertical position.

20

The reservoir 1 has a bottom 2 and a top 3. The reservoir 1 has an inlet 4 connected via a pipe to the water mains pipe connector. The inlet 4 is provided at the bottom portion of the reservoir 1.

25 The reservoir 1 furthermore has a water outlet 5 provided at the upper portion of the reservoir 1, which is connectable to one or more taps as will be explained in more detail below.

An electric water heating element 10 is provided in the lower portion of the water reservoir 1 above the inlet 4.

30

As can be seen the electric water heating element 10 is of a substantially horizontal lay-out. Its body is generally planar and extends in a horizontal plane, so at right angles to the main vertical axis of the reservoir 1.

-7-

The heating element 10 is of a substantially spiralling construction, the coils of the spiral being located in a common horizontal plane.

The coils of the heating element 10 are preferably made of Incoloy or stainless steel.

5

As can be observed in figure 8 - and as is preferred in view of circulation of the water in the reservoir - the heating element 10 is positioned eccentrically with respect to the central vertical axis of the reservoir 1.

10 The reservoir 1 has a substantially circular horizontal cross-section, as is preferred.

As is preferred the spiral heating element 10 has a generally circular outer contour with a radius R, and the centre of the spiral heating element is positioned between 0.4 R and 0.6 R eccentric from the centre of the reservoir 1.

15

To allow for optimum water circulation in the reservoir 1 it is preferred that the ratio between the effective horizontal surface of the heating element 10 and the remaining horizontal surface area of the reservoir 1 at the height of the heating element 10 is between 1 : 0.75 and 1 : 1.25. In figure 11 it can be observed that heated water rises in the reservoir 20 1, generally in the region above the heating element 10, the remainder of the cross-section of the reservoir 10 being available for a downward return flow of water.

As is preferred the reservoir 1 is made of steel, e.g. stainless steel.

25 As is preferred the reservoir 1 is composed of a top element 3a, a bottom element 2a and a tubular central element 1a, preferably welded together, the reservoir effectively being closed apart from the inlet 4 and outlet 5.

The water heating element 10 is mounted here in the bottom element 2a, preferably such 30 that the top of the heating element 10 is level with the top of the bottom element 2a of the reservoir. This facilitates to assembly of the reservoir 1.

As is preferred the inlet 4 of the reservoir 1 is associated with a water inlet distributor 4a arranged below the heating element 10 and having one or more water distributing openings 35 allowing the inflow of water in a generally radial direction into the reservoir 1.

-8-

Figure 12 depicts a schematic flow scheme of an apparatus according to an embodiment of the invention and an associated boiling water tap.

5 As is preferred this apparatus of figure 12 is designed solely for dispensing boiling water, preferably for use with a boiling water tap, e.g. mounted at a kitchen sink.

The apparatus comprises a pressure vessel reservoir 101 having a cold water inlet 102 at the bottom end thereof that is connected to a water mains pipe connector 113 via a pipe 112. 10 The reservoir also has an outlet 103 provided at an upper portion of the vessel 101. The reservoir 101 is preferably embodied as discussed with reference to figures 1-11, e.g. including one or more of the preferred features thereof.

In normal operation the reservoir 101 is completely filled with water. The water in the 15 reservoir 101 is preferably heated to a temperature above the atmospheric boiling point of water, e.g. to 110 -106 °C. Due to this relative low overheated water the steam production reaching atmospheric pressure is reduced. For example, when the temperature is 115 °C, per litre water one litre of steam is formed after expansion. At 105°C, this is only 30%. In other words, steam formation reduces a factor 3.

20

As is preferred inside the pressure vessel reservoir 101 an outlet pipe element 109 is provided that is connected to the outlet 103, which pipe element 109 here is of a U-shape and bends upwards towards the top of the pressure vessel 101.

25 As is preferred the inlet 102 is connected to a water inlet distributor 108 in the reservoir 101 below the heating element 104. In another embodiment an inlet distributor is arranged above the mouth of the inlet 102 to direct the inflow of water in a substantially horizontal direction.

In the figure 12 it is shown that the outlet 103 of the reservoir is connected to a boiling water 30 tap 150 via a pipe 110,111.

The tap 150, which can be sold to the customer together with the apparatus, here, as is preferred, includes an electrical switch 151 or similar, e.g. a touch type switch, for operation by a user in order to activate the flow of boiling water. This switch 151 is connected via an -9- electrical line (or e.g. wireless) to an electrically operated valve assembly 140,141 with one or more valves in the pipe 110,111. The switch 151 is also visible in fig. 16a.

In the preferred embodiment shown here, in the pipe 110,111 between the reservoir 101 and 5 the boiling water tap 150 multiple, here two, valves 140,141, e.g. electromagnetic valves, are provided in parallel.

The parallel valves 140,141 allow a user of the tap 150 to choose between two volumetric flows depending on the application. For instance, if a small volumetric flow is required, e.g. to 10 fill a cup, only one of the valves is opened, but in case a larger volume flow is required, e.g.

to fill a tea kettle or cooking pan, both valves are opened.

In a preferred embodiment the apparatus includes control electronics for the parallel valves 140, 141 in the boiling water pipe 110,111 such that first operation of the switch on the tap 15 150 cause one valve 140 to open, and such that the second valve 141 also opens when the switch is operated beyond a predetermined time, e.g. after operating, e.g. depressing, the switch for more than 10 seconds.

As is preferred in the boiling water pipe 110, 111 leading to the tap 150, outside of the 20 reservoir 101, a filter 142, preferably exchangeable, is provided to filter the boiling water. The advantage of providing this filter 142 outside the pressure vessel reservoir 101 is that the filter 142 can be easily replaced by a non-technically skilled person.

As is preferred the temperature of the water in the pressure vessel reservoir 101 is measured 25 using two vertically spaced temperature sensors 106,107. The one sensor 106 is located at or near the heating element 104, whereas the other sensor 107 is located at the upper part of the reservoir 101, near the reservoir outlet.

As can be seen in the reservoir 1 of figures 1-11, and now will be explained with reference to 30 figure 12, a wall portion 148 of the reservoir 101 is extending into the interior of the reservoir as a tube from the bottom to the heating element 104. As is preferred this tubular wall portion 148 extends upwards to a point above the water heating element 104. A temperature sensor 106 is positioned inside the tubular wall portion 148 to measure a water temperature in the vessel 101 just above the heating element 104. The tubular wall portion 148 may be a tube 35 with one open end and one closed end, said closed end being inserted through an opening -10- of the reservoir 101 and then attaching the open end to the wall of the reservoir by for instance welding.

A second temperature sensor 107 is mounted in this embodiment to the outside of the wall of 5 the reservoir 101 to measure a water temperature in the reservoir at the top.

The electric water heating element 104 is controlled by an electronic control system 155 on the basis of the one or more temperature sensors 106,107, preferably with a suitable thermostat.

10 A problem that may arise in particular with boiling water taps used in combination with an apparatus for providing hot or boiling water, is that of calcification of the tap. In order to alleviate this problem the tap outlet for boiling water and/or the tap outlet for hot water comprises a polymer spout, such as spout 252 shown in fig. 16b, preferably made of POM or 15 Teflon, to prevent calcification, having holes of preferably 1,5 - 3 ,0 mm in diameter.

Preferably the polymer spout has 5-15, preferably 7-10 holes. The advantage of this spout is that the boiling hot water is divided in little droplets. This reduces the risk of instant burning of hands when held under the water flow substantially.

20 In figure 13 a more elaborate version of the apparatus according to the invention is shown schematically. This apparatus not only produces boiling water to be dispensed from boiling water tap 150, but also produces non-boiling hot water to be supplied to a tap 160, e.g. a hot and cold water tap that allows a user to set and adjust the temperature and flow of the dispensed non-boiling water.

25

In figure 13 parts that are the same or similar to parts in figure 12 have been denoted with the same reference numerals. The additional parts will be explained below in more detail.

Reference numeral 129 denotes a boiling water valve in the pipe 110 of the apparatus, in this 30 example electronically controlled via signal line 152 connected to switch 151 of tap 150.

As is preferred a flow regulator 130 is mounted in boiling water pipe 110, e.g. an adjustable regulator that is set upon installation of the apparatus to obtain a desired boiling water flow, e.g. to compensate for water mains pressure. Preferably, the flow restrictor or flow regulator -11 - (130) will keep the flow constant between 1 and 3 l/min, independent of the water pressure.

The position of flow regulator 130 is also shown in detail in fig. 16c.

The outlet 103 not only connects to tap 150 but also to a thermostatic mixing valve 116, 5 preferably a valve with a user adjustable output temperature of the water emerging from the valve 116, e.g. having a knob at the front of the apparatus.

In this embodiment, as is preferred, only a single water outlet 103 is formed in the reservoir 101, a T-branch 114 being provided downstream of the outlet 103 that connects to a pipe 10 115 to feed water from reservoir 101 to the mixing valve 116.

A cold water pipe 121 also connects to the mixing valve 116, the mixing valve 116 being connected to an hot water pipe 120.

15 As is preferred non-return valves 114,118,119 are provided at each port of the mixing valve 116 to prevent undesirable backflow of water.

In this example the hot water pipe 120 is connected via hose 128 to the hot water connection of tap 160. The tap 160 also includes a cold water connection connected to the water mains 20 via a pipe 198.

As is preferred a safety pressure valve 122 is arranged in cold water inlet pipe 113, allowing to relief an undesirable overpressure, e.g. into a waste pipe 125.

25 The apparatus, as is preferred, also includes a cold water connector 124 to which pipe 198 is connected, so that both the hot water and cold water connection of the tap 160 can be connected to associated connectors on the apparatus. This facilitates the installation of the apparatus and taps.

30 The water mains pipe connection of the apparatus is preferably embodied as a hose 126, connecting to pipe 123.

In a preferred embodiment the mixing device 116 comprises a thermostatic mixing valve, which preferably comprises a brass interior, preferably provided with a Teflon tube positioned 35 in the brass interior to prevent calcification.

- 12-

In a preferred embodiment a cold water inlet combination is provided that is connected to the water mains pipe connector and to the water reservoir inlet and the mixing device, which cold water inlet combination is preferably provided with a filter 282. The filter 182 can be filled with 5 active carbon 180 to filter elements that influence taste of the water. Instead of an active carbon filter, or in addition to an active carbon filter, also a filter 181 can be provided on base of ion exchange to soften the water in hard water area’s.

In a preferred embodiment the apparatus comprises a temperature control connected to the 10 heating element to control the temperature of the heating element and thus the temperature of the water in the water reservoir, preferably maintaining the boiling water at a temperature of 101-106°C.

It will be appreciated that reservoir 101 is preferably embodied as described herein before 15 with reference to figures 1-11. Also details of the reservoir and related features discussed with reference to figure 11 and/or 12 are preferably incorporated in the reservoir and apparatus of figures 1-11.

Now referring to figure 14 other aspects and preferred details of the invention will be 20 elucidated in more detail.

In figure 14 parts corresponding to figure 12 have been denoted with the same reference numeral.

25 As is preferred a cylindrical insulator 170 is mounted around the reservoir 101 to avoid heat loss.

The apparatus includes an outer housing, here with a front part 180a and a rear part 180b, preferably both made of plastic material.

30

The outer housing is adapted to be mounted, e.g. in a kitchen cabinet, preferably below the kitchen sink, with the reservoir 101 in vertical position.

As is preferred the reservoir 101 is supported in the outer housing by a reservoir support 35 member 182 mounted in the outer housing, the reservoir support member 182 engaging and - 13- supporting the bottom portion of the reservoir 101. As is preferred the reservoir support member 182 here comprises a central depression or opening 182a in which the bottom portion of the reservoir 101 is received.

5 As is preferred the reservoir support member 182 here is made as a moulded, e.g. injection moulded, plastic product.

The support member 182 preferably not only serves to support the reservoir 101, but when an electric heater is used, as is preferred, then it is also preferred that electrical components 10 associated with said electric heater are mounted on the reservoir support member 182. These components preferably at least include a temperature sensor (here sensor 106) for measuring a water temperature in the reservoir, preferably near or just above the heater, and an electrical thermostat 106b coupled to said temperature sensor for controlling the electric heater.

15

As is preferred the support member 182 also includes a electric mains connector, e.g. with electric cable 184, as well as an electric cable 185 to connect to a boiling water tap (150).

As is preferred the apparatus comprises an assembly of one or more valves, here including 20 mixing valve 116, and associated water conduits, in this example both flexible and non-flexible. The apparatus here comprises an upper support member 190 mounted above the reservoir 101, said upper support member 190 supporting the one or more valves, as is preferred at least mixing valve 116 when present in the apparatus.

25 As can be seen, in this preferred embodiment, the upper support member 190 is substantially plate-shaped. The mixing valve 116 is resting on top of said upper support member 190, as is preferred in a depression 190a formed in the upper support member.

The mixing valve 116 is a thermostatic valve and has a temperature adjust knob to adjust the 30 temperature of the hot water, e.g. between 50 and 70 °C. The knob is accessible at the front of the apparatus.

A cover member 191 is mounted over the upper support member.

- 14-

In a version of the apparatus, e.g. as shown in figure 13, shown in figure 15, a heat exchanger 200 is arranged between the pipe 115 connecting the reservoir outlet 103 to the mixing valve 116 on the one hand and the pipe 112 connecting the water mains pipe connector to the water inlet 102 on the other hand, such that water from the reservoir 101 to 5 the mixing valve 116 is cooled, preferably to below 100 °C, and the heat is transferred to the water flowing to the inlet 102 without water being mixed in the heat exchanger. It will be appreciated that this solution is most advantageous when the mixing valve 116 is housed within the outer housing of the apparatus, so that also said heat exchanger can be fitted within said outer housing too.

10

In fig. 16c a set of spring operable balls 270 is shown which allow stepwise height adjustment of the tap 271. This type of height adjustment is applicable in any type of tap, preferably a hot water tap, more preferably a hot water tap suitable to be used in an apparatus according to one or more aspects of the present invention.

15 - 15-

CLAUSES

1. Apparatus for heating water and dispensing hot water and/or boiling water, e.g. for 5 installation in a domestic kitchen, the apparatus comprising: - a water mains pipe connector for connecting the apparatus to a water mains pipe, - a water storage and heating reservoir, said reservoir having a bottom and a top, wherein 10 said reservoir has an inlet connected to the water mains pipe connector, the inlet being provided at the bottom portion of the reservoir, wherein the reservoir furthermore has an outlet provided at the upper portion of the reservoir, which is connectable to a tap, and wherein an electric water heating element is provided in the water reservoir above the inlet, 15 characterized in that the electric water heating element is of a substantially horizontal layout.

2. Apparatus according to clause 1, wherein the heating element is of a substantially spiralling construction, preferably made of Incoloy or stainless steel.

20 3. Apparatus according to clause 1 or 2, wherein the heating element is positioned eccentrically.

4. Apparatus according to one or more of the preceding clauses, wherein the reservoir 25 has a substantially circular horizontal cross-section.

5. Apparatus according to clauses 2, 3 and 4, wherein the spiral heating element has a radius R, and wherein the centre of the spiral heating element is positioned between 0.4 R and 0.6 R eccentric from the centre of the reservoir.

30 6. Apparatus according to one or more of the preceding clauses, wherein the ratio between the effective horizontal surface of the heating element and the remaining horizontal surface area of the reservoir at the height of the heating element is between 1 :0.75 and 1 : 1.25.

35 -16- 7. Apparatus according to one or more of the preceding clauses, wherein the reservoir is composed of a top element, a bottom element and a tubular central element, preferably welded together, and wherein the water heating element is mounted in the bottom element, preferably such that the top of the heating element is level with the top of the bottom element 5 of the reservoir.

8. Apparatus according to one or more of the preceding clauses, wherein a water inlet distributor is arranged below the heating element having one or more water distributing openings allowing the inflow of water in a generally radial direction into the reservoir.

10 9. Apparatus according to one or more of the preceding clauses, wherein an outlet pipe is connected to the reservoir outlet, which outlet pipe is connected to a water mixing device, e.g. a thermostatic valve, housed within the apparatus, the mixing device also being connected to the water mains pipe connector of the apparatus, the mixing device comprising 15 a hot water outlet connectable to a tap for dispensing hot, non-boiling water.

10. Apparatus according to clause 9, wherein the mixing device comprises a temperature regulator adapted to regulate the mixing of water from the reservoir and water from the water mains, in order to set the temperature of the hot water that is dispensed from the outlet of the 20 mixing device, which temperature may preferably lie between 40 and 90 °C.

11. Apparatus according to clause 9 or 10, wherein the mixing device is a thermostatic mixing valve, which preferably comprises a brass interior, preferably provided with a Teflon tube positioned in the brass interior to prevent calcification.

25 12. Apparatus according to one or more of the preceding clauses, for dispensing hot water and boiling water, wherein the reservoir and the heater of the apparatus are adapted for heating and storage of boiling water at a temperature above its atmospheric boiling point, preferably the reservoir being completely filled with water during normal operation.

30 13. Apparatus according to clauses 9 and 12, wherein a single boiling water outlet is provided at the upper portion of the reservoir to which an boiling water outlet pipe is connected for connection to a boiling water tap, and wherein the single boiling water outlet is also connected to the mixing device.

35 - 17 - 14. Apparatus for dispensing boiling water and for dispensing hot water, connectable to the water mains, e.g. for use in a domestic kitchen, the apparatus comprising: - a water mains pipe connector for connecting the apparatus to a water mains pipe, 5 - a water storage and heating reservoir, said reservoir having a bottom and a top, wherein said reservoir has an inlet connected to the water mains pipe connector, the inlet being provided at the bottom portion of the reservoir, wherein the reservoir furthermore has an outlet provided at the upper portion of the reservoir, which is connectable to a tap, and 10 wherein a water heating element is provided in the water reservoir, the heater being adapted to provide boiling water at a temperature above its atmospheric boiling point, - a boiling water outlet connected to the reservoir outlet and connectable to a boiling water tap, 15 - a mixing device connected to the water mains pipe connector and to the reservoir outlet, said mixing device being adapted to mix cold water and water from the reservoir to provide hot water to a hot water outlet of the apparatus, said hot water outlet being distinct from the boiling water outlet, 20 - preferably the apparatus including a cold water outlet, thereby allowing a tap to be connected to the hot water outlet and the cold water outlet of the apparatus, characterized in that the apparatus includes an outer housing, a reservoir support member 25 mounted in said outer housing, the reservoir support member engaging and supporting the bottom portion of the reservoir, preferably the reservoir support member being a moulded plastic product.

15. Apparatus according to clause 14, wherein the reservoir support member comprises a 30 central depression or opening in which the bottom portion of the reservoir is mounted 16. Apparatus according to clause 14 or 15, wherein the water heating element is an electric heating element, and wherein electrical components associated with said electric heating element are mounted on the reservoir support member, preferably at least including - 18- a temperature sensor for measuring a water temperature in the reservoir and electric thermostat coupled to said temperature sensor for controlling the electric heating element.

17. Apparatus according to one or more of clauses 14-16, wherein the apparatus further 5 comprises an arrangement of one or more valves and water conduits, and wherein the apparatus comprises an upper support member mounted above the reservoir, said upper support member supporting said one or more valves.

18. Apparatus according to clause 17, wherein the upper support member is substantially 10 plate-shaped, and wherein a valve, e.g. a mixing valve, is resting on top of said upper support member, e.g. in a depression formed in the upper support member, wherein preferably a cover member is mounted over the upper support member.

19. Apparatus for dispensing boiling water and for dispensing hot water, connectable to 15 the water mains, e.g. for use in a domestic kitchen, the apparatus comprising: - a water mains pipe connector for connecting the apparatus to a water mains pipe, - a water storage and heating reservoir, said reservoir having a bottom and a top, wherein 20 said reservoir has an inlet connected to the water mains pipe connector, the inlet being provided at the bottom portion of the reservoir, wherein the reservoir furthermore has an outlet provided at the upper portion of the reservoir, which is connectable to a tap, and wherein a water heating element is provided in the water reservoir, the heater being adapted to provide boiling water at a temperature above its atmospheric boiling point, 25 - a boiling water outlet connected to the reservoir outlet via a boiling water pipe and connectable to a boiling water tap, - a mixing device connected to the water mains pipe connector and to the reservoir outlet, 30 said mixing device being adapted to mix cold water and water from the reservoir to provide hot water to a hot water outlet of the apparatus, said hot water outlet being distinct from the boiling water outlet, - preferably the apparatus including a cold water outlet, thereby allowing a tap to be 35 connected to the hot water outlet and the cold water outlet of the apparatus, -19- characterized in that the apparatus includes in the boiling water pipe a multiple volumetric flows valve arrangement, e.g. two electrically operated valves in parallel, that allow a user of the boiling water tap to choose between two or possibly more different volumetric flows.

5 20. In combination an apparatus according to clause 19 and a boiling water tap, wherein the boiling water tap includes a electrical switch, for operation by a user in order to activate the flow of boiling water, the switch being connected to the electrically operated valves, preferably such that first operation of the switch on the tap causes one valve to open, and 10 prolonged operation of the switch causes also the second valve to open.

21. Apparatus for dispensing boiling water and for dispensing hot water, connectable to the water mains, e.g. for use in a domestic kitchen, the apparatus comprising: 15 - a water mains pipe connector for connecting the apparatus to a water mains pipe, - a water storage and heating reservoir, said reservoir having a bottom and a top, wherein said reservoir has an inlet connected to the water mains pipe connector, the inlet being provided at the bottom portion of the reservoir, wherein the reservoir furthermore has an 20 outlet provided at the upper portion of the reservoir, which is connectable to a tap, and wherein a water heating element is provided in the water reservoir, the heating element being adapted to provide boiling water at a temperature above its atmospheric boiling point, - a boiling water outlet connected to the reservoir outlet via a boiling water pipe and 25 connectable to a boiling water tap; - preferably a mixing device connected to the water mains pipe connector and to the reservoir outlet, said mixing device being adapted to mix cold water and water from the reservoir to provide hot water to a hot water outlet of the apparatus, said hot water outlet 30 being distinct from the boiling water outlet, - preferably the apparatus including a cold water outlet, thereby allowing a tap to be connected to the hot water outlet and the cold water outlet of the apparatus, characterized in that the apparatus includes in the boiling water pipe a filter for the boiling water.

-20- 22. In combination an apparatus for dispensing boiling water and for dispensing hot 5 water, connectable to the water mains, e.g. for use in a domestic kitchen, the apparatus comprising: - a water mains pipe connector for connecting the apparatus to a water mains pipe, 10 - a water storage and heating reservoir, said reservoir having a bottom and a top, wherein said reservoir has an inlet connected to the water mains pipe connector, the inlet being provided at the bottom portion of the reservoir, wherein the reservoir furthermore has an outlet provided at the upper portion of the reservoir, which is connectable to a tap, and wherein a water heating element is provided in the water reservoir, the heating element 15 being adapted to provide boiling water at a temperature above its atmospheric boiling point, - a boiling water outlet connected to the reservoir outlet via a boiling water pipe and connectable to a boiling water tap; 20 - preferably a mixing device connected to the water mains pipe connector and to the reservoir outlet, said mixing device being adapted to mix cold water and water from the reservoir to provide hot water to a hot water outlet of the apparatus, said hot water outlet being distinct from the boiling water outlet, 25 - preferably the apparatus including a cold water outlet, thereby allowing a tap to be connected to the hot water outlet and the cold water outlet of the apparatus, the combination further comprising at least one tap for dispensing boiling or hot water, wherein the tap outlet for boiling water and/ or the tap outlet for hot water comprises a 30 polymer spout, preferably made of POM or Teflon to prevent calcification, having holes of preferably 1,5 - 3 ,0 mm in diameter, preferably the polymer spout having 5-15, preferably 7-10 holes.

23. Apparatus for dispensing boiling water and for dispensing hot water, connectable to 35 the water mains, e.g. for use in a domestic kitchen, the apparatus comprising: -21 - - a water mains pipe connector for connecting the apparatus to a water mains pipe, - a water storage and heating reservoir, said reservoir having a bottom and a top, wherein 5 said reservoir has an inlet connected to the water mains pipe connector, the inlet being provided at the bottom portion of the reservoir, wherein the reservoir furthermore has an outlet provided at the upper portion of the reservoir, which is connectable to a tap, and wherein a water heating element is provided in the water reservoir, the heating element being adapted to provide boiling water at a temperature above its atmospheric boiling point, 10 - a boiling water outlet connected to the reservoir outlet via a boiling water pipe and connectable to a boiling water tap; - a mixing device connected to the water mains pipe connector and to the reservoir outlet, 15 said mixing device being adapted to mix cold water and water from the reservoir to provide hot water to a hot water outlet of the apparatus, said hot water outlet being distinct from the boiling water outlet, - preferably the apparatus including a cold water outlet, thereby allowing a tap to be 20 connected to the hot water outlet and the cold water outlet of the apparatus, characterized in that a mixing device is housed within the apparatus, said mixing device being connected to the reservoir outlet and also being connected to the water mains pipe connector of the apparatus, the mixing device comprising a hot water outlet connectable to a 25 tap for dispensing hot, non-boiling water, the mixing device preferably having an adjustable water temperature so as to allow dispensing hot water at an adjustable temperature.

24. Apparatus according to clause 23, wherein a single outlet is provided at the upper portion of the reservoir to which an boiling water outlet pipe is connected for connection to a 30 boiling water tap, and wherein the single outlet is also connected to the mixing device.

25. Apparatus according to clause 23 or 24, wherein a heat exchanger is arranged between the pipe connecting the reservoir outlet to the mixing device on the one hand and the pipe connecting the water mains pipe connector to the reservoir inlet on the other hand, -22- such that water from the reservoir to the mixing valve is cooled and said heat is transferred to the water flowing to the reservoir inlet without water being mixed in the heat exchanger.

26. Apparatus for dispensing boiling water and for dispensing hot water, connectable to 5 the water mains, e.g. for use in a domestic kitchen, the apparatus comprising: - a water mains pipe connector for connecting the apparatus to a water mains pipe, - a water storage and heating reservoir, said reservoir having a bottom and a top, wherein 10 said reservoir has an inlet connected to the water mains pipe connector, the inlet being provided at the bottom portion of the reservoir, wherein the reservoir furthermore has an outlet provided at the upper portion of the reservoir, which is connectable to a tap, and wherein a water heating element is provided in the water reservoir, the heating element being adapted to provide boiling water at a temperature above its atmospheric boiling point, 15 - a boiling water outlet connected to the reservoir outlet via a boiling water pipe and connectable to a boiling water tap; - preferably a mixing device connected to the water mains pipe connector and to the 20 reservoir outlet, said mixing device being adapted to mix cold water and water from the reservoir to provide hot water to a hot water outlet of the apparatus, said hot water outlet being distinct from the boiling water outlet, - preferably the apparatus including a cold water outlet, thereby allowing a tap to be 25 connected to the hot water outlet and the cold water outlet of the apparatus, characterized in that an operating module for operating the boiling water tap is provided in the boiling water pipe, which operating module comprises a switch and an electronic module, which electronic module defines a security code which enables or denies boiling water to flow through the boiling water tap.

30 27. Apparatus according to claim 26, wherein the security code is defined by a combination of sequence and time of operating the switch.

28. Apparatus according to claim 26 or 27, wherein the security code is definable by the 35 user of the apparatus.

-23- 29. Apparatus for dispensing boiling water and for dispensing hot water, connectable to the water mains, e.g. for use in a domestic kitchen, the apparatus comprising: 5 - a water mains pipe connector for connecting the apparatus to a water mains pipe, - a water storage and heating reservoir, said reservoir having a bottom and a top, wherein said reservoir has an inlet connected to the water mains pipe connector, the inlet being provided at the bottom portion of the reservoir, wherein the reservoir furthermore has an 10 outlet provided at the upper portion of the reservoir, which is connectable to a tap, and wherein a water heating element is provided in the water reservoir, the heating element being adapted to provide boiling water at a temperature above its atmospheric boiling point, - a boiling water outlet connected to the reservoir outlet via a boiling water pipe and 15 connectable to a boiling water tap; - preferably a mixing device connected to the water mains pipe connector and to the reservoir outlet, said mixing device being adapted to mix cold water and water from the reservoir to provide hot water to a hot water outlet of the apparatus, said hot water outlet 20 being distinct from the boiling water outlet, - preferably the apparatus including a cold water outlet, thereby allowing a tap to be connected to the hot water outlet and the cold water outlet of the apparatus, characterized in that a flow regulator is mounted in boiling water pipe, e.g. an adjustable 25 regulator that is set upon installation of the apparatus to obtain a desired boiling water flow.

Claims

22

Device for heating water and dispensing hot water and / or boiling water, for example for installation in a residential kitchen, which device comprises: 5. a main water pipe connector for connecting the device to a main water pipe, - a water storage and heating reservoir, which reservoir has a bottom and a top, the reservoir having an inlet connected to the main water pipe connector, the inlet being arranged on the bottom part of the reservoir, the reservoir 10 further having an outlet which is on the upper part of the reservoir arranged, which outlet can be connected to a tap, and wherein an electric water heating element is arranged in the water reservoir, above the inlet, characterized in that the electric water heating element has a substantially horizontal layout.

Device as claimed in claim 1, wherein the heating element has a substantially spiral-shaped construction, preferably made from Incoloy or stainless steel.

Device as claimed in claim 1 or 2, wherein the heating element is arranged eccentrically.

Device as claimed in one or more of the foregoing claims, wherein the reservoir has a substantially circular horizontal cross-section. 25

The device according to claims 2, 3 and 4, wherein the spiral heating element has a radius R, and wherein the center of the spiral heating element is placed between 0.4 R and 0.6 R eccentrically relative to the center of the reservoir.

Device as claimed in one or more of the foregoing claims, wherein the ratio between the effective horizontal surface of the heating element and the remaining horizontal surface of the reservoir at the level of the heating element is between 1: 0.75 and 1: 1.25.

Device as claimed in one or more of the foregoing claims, wherein the reservoir is composed of an upper element, a bottom element, and a tubular central element, preferably welded to each other, and wherein the water heating element is arranged in the bottom element, at preferably such that the top of the heating element is flush with the top of the bottom element of the reservoir.

8. Device as claimed in one or more of the foregoing claims, wherein a water inlet distributor is arranged under the heating element with one or more water distribution openings that allow the inflow of water into the reservoir in a substantially radial direction.

Device as claimed in one or more of the foregoing claims, wherein an outlet line 10 is connected to the reservoir manifold, which outlet line is connected to a water mixing device, for example a thermostatic valve, accommodated in the device, the mixing device also being connected to the main water line connector of the device, the mixing device comprising a hot water outlet that can be connected to a tap for dispensing hot, non-boiling water. 15

Apparatus as claimed in claim 9, wherein the mixing device comprises a temperature controller adapted to control the mixing of the water from the reservoir and water from the water main line, in order to adjust the temperature of the hot water discharged from the outlet of the mixer, which temperature can preferably be between 40 and 90 ° C.

Device as claimed in claim 9 or 10, wherein the mixing device is a thermostatic mixing valve, which preferably has a brass interior, preferably provided with a Teflon tube in the brass interior to prevent limescale.

Device as claimed in one or more of the foregoing claims, for dispensing hot water and boiling water, wherein the reservoir and the heating element of the device are adapted to heat and store boiling water at a temperature above atmospheric boiling point, wherein the reservoir is preferably completely filled with water during normal operation.

13. Device as claimed in claims 9 and 12, wherein a single boiling water outlet is provided on the upper part of the reservoir, to which a boiling water outlet pipe is connected for connection to a boiling water tap, and wherein the single boiling water outlet is also connected to the mixer. 24

14. Device for heating water and dispensing hot water and / or boiling water, for example for use in a domestic kitchen, which device comprises: - a main water pipe connector for connecting the device to a main water pipe, 5. a water storage and heating reservoir, which reservoir has a bottom and a top, the reservoir having an inlet connected to the main water pipe connector, the inlet being arranged on the bottom part of the reservoir, the reservoir further having an outlet arranged on the upper part of the reservoir , which outlet can be connected to a tap, and wherein a water heating element is arranged in the water reservoir, the heating element being adapted to provide boiling water with a temperature above atmospheric boiling point, - a boiling water outlet connected to the reservoir plate and can be connected to a boiling water tap, 15 - ee n mixing device connected to the main water line connector and to the reservoir outlet, the mixing device being adapted to mix cold water and water from the reservoir to provide hot water for a hot water outlet of the device, the hot water outlet being different than the boiling water outlet, wherein the device preferably has a cold water outlet, whereby it is possible to connect a tap to the hot water outlet and the cold water outlet of the device, characterized in that the device has an outer housing wherein a reservoir support member is disposed in the outer housing, the reservoir support member engaging the bottom part of the reservoir and supporting that part, the reservoir support member preferably being a molded plastic product.

15. Device as claimed in claim 14, wherein the reservoir supporting member comprises a central floor or opening in which the bottom part of the reservoir is placed.

16. Device as claimed in claim 14 or 15, wherein the water heating element is an electric heating element, and wherein electrical components belonging to the electric heating element are arranged on the reservoir support member, preferably at least comprising a temperature sensor for measuring a water temperature in the reservoir and an electric thermostat coupled to the temperature sensor for controlling the electric heating element. 25

Device as claimed in one or more of the claims 14-16, wherein the device further comprises an assembly of one or more valves and water pipes, and wherein the device comprises an upper support member arranged above the reservoir, the upper support member being one or more carries more of the valves. 5

Device as claimed in claim 17, wherein the upper support member is substantially plate-shaped, and wherein a valve, for example a mixing valve, rests on the upper side of the upper support member, for example in a recess formed in the upper support member, preferably a cover member is arranged over the upper support member.

19. Apparatus for heating water and dispensing hot water and / or boiling water, for example for use in a domestic kitchen, which appliance comprises: - a main water pipe connector for connecting the device to a main water pipe, - a water storage and heating reservoir, which reservoir has a bottom and a top, the reservoir having an inlet connected to the main water pipe connector, the inlet being arranged on the bottom part of the reservoir, the reservoir further having an outlet arranged on the upper part of the reservoir , which outlet 20 can be connected to a tap, and wherein a water heating element is arranged in the water reservoir, the heating element being adapted to provide boiling water with a temperature above atmospheric boiling point, - a boiling water outlet connected to the reservoir plate and can be connected to a boiling water tap, - a mixing device connected to the main water line connector and to the reservoir outlet, the mixing device being adapted to mix cold water and water from the reservoir to provide hot water for a hot water outlet of the device, the hot water outlet being different then the boiling water outlet, wherein the device preferably has a cold water outlet, whereby it is possible to connect a tap to the hot water outlet and the cold water outlet of the device, characterized in that the device is in the boiling water pipe has a valve assembly for several volumetric volume flows, for example two electrically operated 26 valves in parallel, which allows a user of the boiling water tap to choose from two or possibly more different volumetric flows.

20. In combination an apparatus according to claim 19 and a boiling water tap, wherein the boiling water tap has an electric switch for operation by a user to activate the flow of boiling water, the switch being connected to the electrically operated valves, preferably such that first operation of the switch leads to the opening of one valve, and continuous operation of the switch also leads to the opening of the second valve. 10

21. Device for heating water and dispensing hot water and / or boiling water, for example for use in a domestic kitchen, which device comprises: - a main water pipe connector for connecting the device to a main water pipe, 15. a water storage and heating reservoir, which reservoir has a bottom and a top, the reservoir having an inlet connected to the main water pipe connector, the inlet being arranged on the bottom part of the reservoir, the reservoir further having an outlet arranged on the upper part of the reservoir , which outlet can be connected to a tap, and wherein a water heating element is arranged in the water reservoir, the heating element being adapted to provide boiling water with a temperature above atmospheric boiling point, - a boiling water outlet connected to the reservoir plate and can be connected to a boiling water tap, 25 - b preferably a mixing device connected to the main water line connector and to the reservoir outlet, the mixing device being adapted to mix cold water and water from the reservoir to provide hot water for a hot water outlet of the device, the hot water outlet otherwise is then the boiling water outlet, wherein the device preferably has a cold water outlet, whereby it is possible to connect a tap to the hot water outlet and the cold water outlet of the device, characterized in that the device is in the boiling water pipe has a filter for the boiling water. 27

22. In combination a device for heating water and dispensing hot water and / or boiling water, for example for use in a domestic kitchen, which device comprises: - a main water pipe connector for connecting the device to a main water pipe, - a water storage and heating reservoir, which reservoir has a bottom and a top, the reservoir having an inlet connected to the main water pipe connector, the inlet being arranged on the bottom part of the reservoir, the reservoir further having an outlet which is on the upper part of the reservoir is provided, which outlet 10 can be connected to a tap, and wherein a water heating element is arranged in the water reservoir, the heating element being adapted to provide boiling water with a temperature above atmospheric boiling point, - a boiling water outlet which is connected to the reservoir plate and can be connected to a boiling one water tap, preferably a mixing device connected to the main water line connector and to the reservoir outlet, the mixing device being adapted to mix cold water and water from the reservoir to provide hot water for a hot water outlet of the device, wherein the hot water outlet is different from the boiling water outlet, wherein the device preferably has a cold water outlet, whereby it is possible to connect a tap to the hot water outlet and the cold water outlet of the device, the combination further comprises at least one tap for dispensing boiling or hot water, wherein the tap outlet for boiling water and / or the tap outlet for hot water comprises a polymer spout, preferably made of POM or Teflon to prevent limescale, provided with holes of preferably 1.5 - 3.0 mm in diameter, the spout preferably having 5-15, preferably 7-10 holes. 30

23. Device for heating water and dispensing hot water and / or boiling water, for example for use in a domestic kitchen, which device comprises: - a main water pipe connector for connecting the device to a main water pipe, 35. a water storage and heating reservoir, which reservoir has a bottom and a top, the reservoir having an inlet connected to the main water pipe connector, the inlet being arranged on the bottom part of the reservoir, the reservoir 28 further having an outlet which is on the upper part of the reservoir arranged, which outlet can be connected to a tap, and wherein a water heating element is arranged in the water reservoir, the heating element being adapted to provide boiling water with a temperature above atmospheric boiling point, a boiling water outlet which is connected with the reservoir plate and can be connected to a boiling water tap, - a mixing device connected to the main water pipe connector and to the reservoir outlet, the mixing device being adapted to mix cold water and water from the reservoir to provide hot water for a hot water outlet of the device, the hot water outlet being different then the boiling water outlet, wherein the device preferably has a cold water outlet, whereby it is possible to connect a tap to the hot water outlet and the cold water outlet of the device, characterized in that the mixing device in the device is provided, the mixing device being connected to the reservoir outlet and also to the main water line connector of the device, the mixing device including a hot water outlet 20 that can be connected to a tap for dispensing hot, non-boiling water, the mixing device preferably has an adjustable water temperature in order to enable the dispensing of water with an adjustable temperature to make.

24. Device as claimed in claim 23, wherein a single outlet is provided at the upper part of the reservoir to which a boiling water outlet line is connected for connection to a boiling water tap, and wherein the single outlet is also connected to the mixing device.

25. Device as claimed in claim 23 or 24, wherein a heat exchanger is arranged between the pipe connecting the reservoir to the mixing device on the one hand and the pipe connecting the main water pipe connector to the reservoir inlet on the other, so that water from the reservoir is cooled to the mixing device and the heat is transferred to water that flows to the reservoir inlet without water being mixed in the heat exchanger. 35

26. Device for heating water and dispensing hot water and / or boiling water, for example for use in a domestic kitchen, which device comprises: 29 - a main water pipe connector for connecting the device to a main water pipe, - a water storage and heating reservoir, which reservoir has a bottom and a top, the reservoir having an inlet connected to the main water pipe connector, the inlet being arranged on the bottom part of the reservoir, the reservoir further having an outlet which is on the upper part of the reservoir arranged, which outlet can be connected to a tap, and wherein a water heating element is arranged in the water reservoir, the heating element being adapted to provide boiling water with a temperature above atmospheric boiling point, - a boiling water outlet which is connected can be connected to the reservoir outlet and via a boiling water pipe a boiling water tap, preferably a mixing device connected to the main water line connector and to the reservoir outlet, the mixing device being adapted to mix cold water and water from the reservoir to provide hot water for a hot water outlet of the device, wherein the hot water outlet is different from the boiling water outlet, - wherein the device preferably has a cold water outlet, whereby it is possible to connect a tap to the hot water outlet and the cold water outlet of the device, characterized in that an operating module for operating the boiling water tap is provided in the boiling water pipe, which operating module comprises a switch and an electronic module, which electronic module defines a security code that controls the flow of boiling water through the boiling water prevent or enable a crane.

The device of claim 26, wherein the security code is defined by a combination of sequence and duration of operation of the switch.

Device as claimed in claim 26 or 27, wherein the security code can be determined by the user of the device.

29. Device for heating water and dispensing hot water and / or boiling water, for example for use in a domestic kitchen, which device comprises: 35. a main water pipe connector for connecting the device to a main water pipe, 30 - a water storage device and heating reservoir, which reservoir has a bottom and a top, the reservoir having an inlet connected to the main water pipe connector, the inlet being arranged on the bottom part of the reservoir, the reservoir further having an outlet which is on the upper part of the reservoir arranged, which outlet 5 can be connected to a tap, and wherein a water heating element is arranged in the water reservoir, the heating element being adapted to provide boiling water with a temperature above atmospheric boiling point, - a boiling water outlet which is connected can be connected to the reservoir outlet and via a boiling water pipe with a boiling water tap, - preferably a mixing device connected to the main water line connector and to the reservoir outlet, the mixing device being adapted to mix cold water and water from the reservoir to provide hot water for a hot water outlet of the device Wherein the hot water outlet is different from the boiling water outlet, wherein the device preferably has a cold water outlet, whereby it is possible to connect a tap to the hot water outlet and the cold water outlet of the device, characterized in that a flow limiter is mounted in the boiling water conduit, for example an adjustable regulator set during installation of the device to achieve a desired boiling water flow.