AT14730U1 - Heating system, method for operating the heating system and tiled stove for the heating system and / or the method - Google Patents

Abstract

In order to provide a heating system in which a tiled stove (1) is integrated and which is suitable for heating a plurality of living spaces (17), which may also be further apart, or for heating a whole apartment or a whole house is suitable According to the invention a heating system proposed, comprising a tiled stove (1) and at least one air supply means to supply air (42), which is not intended for combustion in the tiled stove (1) and which is preferably outdoor air (18), the tiled stove ( 1), the tiled stove (1) having air heating means (4) for heating the supply air (42).

Description

description

HEATING SYSTEM, METHOD FOR OPERATING THE HEATING SYSTEM AND CABINET FOR THE HEATING SYSTEM AND / OR THE PROCESS

FIELD OF THE INVENTION

The present invention relates to a heating system comprising a tiled stove.

Furthermore, the present invention relates to a method for operating a Heizungs¬ system with a heated stove.

Finally, the present invention relates to a tiled stove for use in a heating system according to the invention and / or a method according to the invention.

STATE OF THE ART

Tiled stoves have long been known as a stove for domestic fire, with tiled stoves due to their constructive generous sized own mass to be able to record thebebeber firing quickly burning solid fuels, especially logs briefly accumulating large amount of heat energy and then again over a longer period leave. A disadvantage of stoves is that they basically only for heating a living room or less living spaces that are directly adjacent to the respective chimney oven, are suitable. That the heating of several living rooms, which are further apart, or a whole house is possible with a tiled stove alone only with great effort. On the other hand, conventional tiled stoves can not readily be integrated into heating systems for many homes. Tiled stoves which are known from the prior art therefore for the most part only function as additional heating stoves which are operated in addition to existing heating systems, which is usually not optimal in terms of energy efficiency.

OBJECT OF THE INVENTION

The present invention has for its object to provide a heating system and a method for operating a heating system in which a tiled stove is integrated and which for heating a plurality of living spaces, which may also be further spaced from each other, or for heating a whole apartment or a whole house is suitable. Moreover, according to the invention, a tiled stove should also be provided which is optimally suited for the heating system or the method according to the invention.

PRESENTATION OF THE INVENTION

The starting point of the invention is the realization that in the course of increasingly interspersed construction of houses with low energy consumption increased living space vents, especially with heat recovery are used. Likewise, more and more heat pump heaters are used for heating entire apartments or houses, in which heat pumps are used, the Entzie¬hen the ambient air heat and raise to a higher temperature level. The idea according to the invention is now to deliberately heat air with a tiled stove in order to use this air for heating via the domestic ventilation or to feed this air to the heat pump, so that its performance coefficient is increased. According to the invention, therefore, a heating system is provided, comprising a tiled stove and at least one air supply means for supplying feed air, which is not intended for incineration in the tiled stove and which is preferably outdoor air, to the tiled stove, the tiled stove having air heating means, to warm the supply air.

Analogously, therefore, a method for operating a heating system with a heated tile stove is provided according to the invention that supply air, which is not intended for combustion in the tiled stove and which is preferably outdoor air, fed to the chimney oven by suction or blowing, warmed up by means of the tiled stove and then, as a feed air warmed by the tiled stove, is then led away again from the tiled stove. "Heated " means in this context that the stove should be warm enough not only to heat the air supplied or supply air, but also to heat the room in which the stove is placed.

Thus, a heating system can be provided in which a living room ventilation is combined with a tiled stove. Accordingly, it is provided in a preferred embodiment of the heating system according to the invention, that the at least one Luftzu-guiding means includes a ventilation unit and that the ventilation unit comprises at least one fan to suck in supply air and blow on a first air supply to the stove and / or suck.

The heated by means of tiled stove air must be directed into living rooms, vorzugswei¬se be blown. Accordingly, it is provided in a preferred embodiment of the heating system according to the invention that at least one second air supply line is provided, by means of which a supply air heated by the tiled stove can be supplied to at least one living space.

Analogously, it is provided in a preferred embodiment of the Verfah¬rens invention that the warmed supply air is fed to at least one living room.

In the event that the tiled stove is still not warm enough or that only fresh air is desired, it should of course be possible to supply fresh air to the living spaces. Accordingly, it is provided in a preferred embodiment of the invention Hei¬zungssystems that at least one the third air supply line is provided, by means of which the feed air can be fed directly from the ventilation unit to at least one living space.

In order to be able to control the air flows accordingly, it is provided in a preferred embodiment of the heating system according to the invention that at least one controllable flap is provided to selectively guide the supply air through the first air supply line and / or the at least one third air supply line.

This also allows mixing of outside air and the air heated by means of the tiled stove, so that the temperature of that air which is to be fed to the at least one living room can be regulated. Accordingly, it is provided in a preferred Aus¬führungsform of the method according to the invention that the heated by means of Kachel-ofens supply air with air, which has not been warmed by the tiled stove is mixed before it is fed to the at least one living room. The mixing ratio can in principle be such that both the feed air warmed by the tiled stove and the air which has not been warmed by means of the tiled stove make up between 0% and 100%. This includes the edge points of this interval, i. there are also cases with 0% of the supply air heated by the tiled stove and 100% air that has not been warmed up by means of the tiled stove - and vice versa.

In particular, can be achieved by this mixing, that the temperature of the air, which is ultimately supplied to the living spaces, does not exceed a maximum value. Such a maximum value makes sense on the one hand for reasons of fire protection, on the other hand for hygienic reasons with regard to the dust in the air. Finally, too high temperatures are perceived as unpleasant by the users or the risk of injury would exist. Therefore, in a preferred embodiment of the method according to the invention, it is provided that air is only supplied to the at least one living space if this air has a temperature less than or equal to a maximum value, the maximum value preferably being in the range of 45 ° to 52 °.

In order to increase energy efficiency, the heat of the exhaust air of the living rooms can be used to warm fresh air. Therefore, in a preferred embodiment of the heating system according to the invention, it is provided that at least one first air return line is provided, by means of which exhaust air from at least one living space can be supplied to the ventilation device, and that the ventilation device comprises a heat exchanger, by means of which the exhaust air heat can be withdrawn from the feed air can be fed. Accordingly, in a preferred embodiment of the method according to the invention, it is provided that heat is extracted from the at least one living space before the exhaust air is passed outside, and that the heat is supplied to the feed air.

In order to be able to extract the exhaust air from the living spaces, it is provided in a preferred embodiment of the heating system according to the invention that the Lüftungsge¬rät comprises at least one exhaust air fan to suck the exhaust air and deliver as exhaust air to the outside.

Likewise, a heating system can be provided in which a heat pump is combined with a tiled stove. In the air supply to the heat pump is the specifi¬sche requirements of the mode of action of the heat pump into account. Accordingly, it is provided in a preferred embodiment of the heating system according to the invention that the heating system comprises a heat pump that means are provided to supply a heated from the tiled stove supply air to the heat pump.

Analogously, it is provided in a preferred embodiment of the Verfah¬rens invention that the warmed feed air is fed to a heat pump.

As an air supply means, an air mixing box can be used, which makes it possible to mix the composition of the feed air and a first mixed air, which is not fed to the tiled stove but is directed towards the heat pump.

In each case, outside air and at least part of an exhaust air, which is discharged from the heat pump, mixed. The mixing ratio can always be such that both the outside air and the exhaust air make up between 0% and 100%. This incorporates the edge points of this interval, i. it is also possible cases with 0% outside air and 100% exhaust air and vice versa. Accordingly, in a preferred embodiment of the heating system according to the invention, it is provided that the at least one air supply means includes an air mixing box and the air mixing box comprises a first flap to supply the composition of the feed air to the tiled stove via a fourth air supply line and / or the composition of a first mixed air as selectable, vorzugs¬weise continuously selectable ratio of outside air and exhaust air, which can be dissipated by the heat pump via a second air return line and at least partially the first flap can be adjusted to adjust.

Analogously, it is provided in a preferred embodiment of the Verfah¬rens invention that the feed air, an adjustable mixture of outside air and at leasteinem part of an exhaust air of the heat pump.

Likewise, the air mixing box allows the feed air warmed by means of the tiled stove to be mixed with the first mixed air so that a second mixed air is produced, which is ultimately fed to the heat pump. The mixing ratio can always be such that both the heated feed air and the first mixed air make up between 0% and 100%. This includes the edge points of this interval, i. it is also cases with 0% warmed supply air and 100% first mixed air and vice versa possible. Accordingly, in a preferred embodiment of the heating system according to the invention, it is provided that the air mixing box comprises a second flap to supply the composition of a second mixed air as a selectable, preferably continuously selectable ratio of the first mixed air which is deliverable via a sixth air supply line from the first flap of the second flap is, and the heated from the tiled stove feed air, which is fed via a fifth air supply from the tiled stove of the second flap set.

Analogously, it is provided in a preferred embodiment of the Verfah¬rens invention that a first mixed air is generated by outside air with at least one

Part of an exhaust air of the heat pump is mixed in a selectable ratio that a second mixed air is generated by the warmed feed air is mixed with the first mixing air in a selectable ratio, and that the second mixed air is supplied to the heat pump.

In order to be able to convey the second mixed air of the heat pump comfortably, it is provided in a preferred embodiment of the heating system according to the invention, which is provided a seventh air supply, by means of which the second mixed air of the heat pump can be supplied, wherein by means of the heat pump of the second mixed air heat drainable and transferable to a heating fluid circuit, which preferably has a fluid reservoir. By the second mixed air is sufficiently warm, the coefficient of performance of the heat pump can be raised, so that the heat pump can heat up the Heizheizidkreislauf very energy efficient. The latter is finally used to heat the living spaces and is üblicher¬weise designed as a water cycle with a hot water tank.

Of course, the exhaust air, which is the second mixed air after it has been extracted from the heat pump heat, must be derived from the heat pump. In order to realize a simple solution for this, it is provided in a preferred embodiment of the heating system according to the invention that the heat pump has a fan with which the second mixed air can be sucked in via the seventh air supply line and the exhaust air can be discharged via the second air return line.

For the proper functioning of the heat pump, it is also important, among other things, that the supplied second mixed air is not too hot. The maximum temperature which the heat pump can process on the input side is determined decisively by the refrigerant used in the heat pump. In practice, for example, an admissible maximum temperature value of 35 ° results. As a protection for the heat pump, a supply of too hot second mixed air can be suppressed. Accordingly, it is provided in a preferred embodiment of the method according to the invention that the second mixing air is supplied to the heat pump only when the second mixed air has a temperature less than or equal to a maximum value, the maximum value being preferably 35 ° C.

By changing the composition of the second mixed air and the first mixed air, the temperature of the second mixed air can be adjusted accordingly so that a predeterminable value is not exceeded. Accordingly, in a preferred embodiment of the method according to the invention, it is provided that the mixing ratio of the first mixing air and / or the mixing ratio of the second mixing air are selected such that the temperature of the second mixing air is less than or equal to the maximum value.

In order not to waste energy and to ensure an energy-technically ideal operation, it is provided in a preferred embodiment of the method according to the invention that an exhaust air of the heat pump has a temperature which is lower than the temperature of the outside air. Therefore, in the case that the temperature of the exhaust air is higher than the temperature of the outside air, it is a pure recirculation mode in which no air is supplied from the outside. This can be effected by a corresponding adjustment of the first flap.

In order to enable an automated operation of the heating system, in which in particular the temperature of the second mixed air is optimally regulated, but also ensures that too hot exhaust air is not discharged to the outside and thus ver¬ energy is used, it is in a preferred embodiment of the Hei¬zungssystems invention provided that temperature sensors and a cooperating with these control control unit are provided to the first flap and / or the second flap, depending on the temperature of the exhaust air and / or the outside air and / or the tiled stove and / or to control the supply air and / or the supply air heated by the tiled stove and / or the temperature in the air gap and / or the air in the living space and / or the second mixed air.

In order to realize a particularly compact air mixing box, it is provided in a preferred embodiment of the heating system according to the invention that the Luftmisch¬box is formed as a structural unit comprising the first flap and the second flap, wherein the flaps each have a pivoting range of 90 ° and vorzugswei¬se electric motors are provided for moving the flaps.

In order to enable optimal integration into a heating system according to the invention. In order to be able to optimally carry out a method according to the invention, it is provided according to the invention in a tiled stove for use in a heating system according to the invention and / or in a method according to the invention, wherein the tiled stove is designed in a multi-shell construction with a first inner shell and an outermost shell Air heating means an air gap between the first inner shell and the outermost shell is arranged to lead air from an air inlet opening in the outermost shell at least partially along the first inner shell to an air outlet opening of the outermost shell. In this case, the first inner shell and / or optionally further inner shells are designed such that combustion gas can not enter the air gap.

In order to have a particularly high security against the penetration of combustion gases into the air gap, it is provided in a preferred embodiment of the tiled stove according to the invention that exactly three shells are provided, wherein a second inner shell is preferably disposed within the first inner shell. That Both the first inner shell and the second inner shell act as a seal of the air gap against combustion gas.

Moreover, as a safety precaution, the supply air with slight overpressure compared to the tiled stove to lead into the air gap. This is an additional safety precaution should leaks occur on the train. In any case, air is pressed into the train and not vice versa.

In order to provide an additional safety device here, a differential pressure sensor (this measures between an exhaust system and a living space to install the differential pressure), if necessary, to switch a fan of the ventilation system "emergency off" when occurring suppression.

Of course, other Luftanwärmmittel are conceivable, which rule out that combustion gas can mix with the air to be heated. For example, a gas-tight tube could be passed through the tiled stove, wherein the gas-tight tube can be arranged in particular between two inner shells. Likewise, it would be conceivable to lead a substantially gastight channel as large as possible over a portion of the outermost Scha¬le.

BRIEF DESCRIPTION OF THE FIGURES

The invention will now be explained in more detail with reference to embodiments. The drawings are exemplary and are intended to illustrate the inventive concept, but by no means restrict it or even render it in conclusion.

1 shows a schematic diagram of a heating system according to the invention with a tiled stove and a ventilation device according to the invention. [0039] FIG. 2 shows a sectional view of a heating system according to the invention with a tiled stove of a heat pump and an air mixing box according to the invention

WAYS FOR CARRYING OUT THE INVENTION

The heating system of FIG. 1 initially has a tiled stove 1 according to the invention. This is constructed in the illustrated embodiment of three shells, with a second inner shell 7, a first inner shell 2 and an outermost shell 3. Between the outermost shell 3 and the first inner shell 2, an air gap 4 is arranged surrounding the ersteinnere shell 2 in that air can be conducted over a large area along the first inner shell 2 from an air inlet opening 5 in the outermost shell 3 to an air outlet opening 6 in the outermost shell 3. The air gap 4 represents a Luftanwärmmittel, which allows to heat the guided through the air gap 4 air when the tiled stove 1 is warm or heated.

By the first inner shell 2 and the second inner shell 3, a dense construction is ensured, which prevents combustion gas, e.g. of trains 43 of Kachel-ofens 1 can get into the air gap 4.

Air supplied to the tiled stove 1 to be warmed up will be referred to as supply air 42 hereinafter, and after being warmed by the tiled stove 1, heated supply air 41.

The heating system shown in Fig. 1 illustrates an embodiment in which the tiled stove 1 is combined with a living room ventilation. Here, a ventilation device 8 is provided, which sucks outside air 18 by means of a fan 9. The outside air 18 is now supplied as supply air 42 to the tiled stove 1 and the air gap 4 by means of the fan 9 and a first air supply line 12 which opens into the air inlet opening 5. The heated by means of the tiled stove 1 supply air 41 is supplied by means of a second air supply 13 to a living space 17, which does not need to be adjacent to the tiled stove 1, wherein the warmed supply air 41 is used to heat the living space 17. Of course, the present solution is not limited to a living space 17, but several living spaces 17 can be covered completely analogously.

If no heating, but only fresh outside air 18 in the living room 17 is desired, or if the tiled stove 1 is still too cold or again too cold to a¬ warm supply air 42, which measured a temperature sensor in the air gap 4 a flap 14 in the first air supply line 12 can be closed. Feed air 42 can then not get into the air gap 4. By opening a flap 15 in a third Luftzuführleitung36, which connects the ventilation unit 8 directly to the second air supply line 13, gewähr¬leistet that only outside air 18 is supplied to the living space 17. Such a circuit can also be done manually, if you want to completely disconnect the tiled stove and the living room ventilation.

Conversely, by closing the flap 15 and opening the flap 14, it is achieved that the entire sucked-in outside air 18 is supplied to the air gap 4 as feed air 42. Likewise, intermediate positions of the flaps 14, 15 are possible, so that there is a mingling between fresh outside air 18 and warmed feed air 41. In this way, the temperature of the air ultimately supplied to the living space 17 can be regulated.

In particular, it can thus be prevented that too hot warmed supply air 41 is supplied to the living space 17. Ideally, the maximum temperature of the air ultimately supplied to the living space 17 should be in the range of 45 ° C to 52 ° C.

In principle, it would of course also be conceivable, instead of the two flaps 14, 15 to take only a flap, which is arranged at the intersection of the first air supply line 12 and the third air supply line 36.

From the living room 17 exhaust air 37 is sucked by means of the ventilation unit 8 again. For this purpose, the ventilation device has an exhaust air fan 10, which sucks the exhaust air 37 via a first air return line 16. Before the exhaust air 37 is discharged as exhaust air 19 to the outside, the exhaust air 37 is withdrawn heat by means of a heat exchanger 11. This heat is supplied to the sucked-in outside air 18, so that, in principle, even without a tiled stove 1, a certain heating of that air, which is ultimately supplied to the living space 17, is possible. Depending on how much the heating by means of the heat exchanger 11 is possible, more or less supply air 42 in the tiled stove 1 has to be warmed up in order to achieve the desired heating result.

The heating system of Fig. 2 also comprises the tiled stove 1 according to the invention, whose construction is identical to that of Fig. 1. The heating system shown in Fig. 2 represents an embodiment in which the tiled stove 1 with a heat pump 26 and is combined with a heat pump heater. By means of the heat pump 26 is supplied air, which is sucked via a fan 29 of the heat pump 26, heat extracted, which is raised to a higher level to heat a water circuit 31, which is ultimately used for heating a dwelling or house.

For this purpose, the water circuit 31 to a flow 32, in which heated Was¬ser a memory 35 is supplied, and a return 33 to the heat pump 26 with cold water. The water circuit 31 is operated with a circulation pump 34.

The idea is to supply the heat pump 26 with heated supply air 41 in order to increase the capacity of the heat pump 26. It should be noted, however, that the heat pump 26 ultimately fed to the heat pump may not be too warm or too hot, in order not to damage the heat pump 26, with a typical but manufacturer-dependent maximum temperature of 35 ° C.

In order to be able to supply supply air 42 to the tiled stove 1 in a targeted manner and to be able to regulate the temperature of that air which ultimately reaches the heat pump 26, an air mixing box 20 is provided by means of which different air streams can be mixed.

For this purpose, the air mixing box 20 initially has a first flap 21. In principle, this has two entrances, one for outside air 18 and one for exhaust air 38. The exhaust air 38 is air which heat was extracted from the heat pump 26 and which is removed from the heat pump 26 via a second air return line 28 by means of the valve 29 is blown. In order to avoid excessive flow velocities in the tiled stove 1 or in the air gap 4, preferably not the entire exhaust air 38 is supplied to the first flap 21, but only a part, the remainder being discharged to the outside as exhaust air 19.

By means of the first flap 21, the supply air 42 is generated by pivoting the first flap 21 as a mixture of outside air 18 and exhaust air 38, wherein their proportions can each lie between 0% and 100%. The feed air 42 thus produced is passed through a fourth air supply line 39 to the air inlet opening 5.

At the same time a first mixed air 23 from Außenluft18 and exhaust air 38 is mixed by means of the first flap 21, wherein clearly in the first mixed air, the proportions of Außenluft18 and exhaust air 38 may each be between 0% and 100%. The first mixed air 23 is not supplied to the tiled stove 1 but via a sixth air supply line 40 to a second flap 22 of the air mixing box 20. The second flap 22 also has a further input for the warmed in the tiled stove 1 feed air 41. The warmed supply air 41 is supplied via a fifth air supply line 25 of the second flap 22.

By means of the second flap 22, a second mixed air 24 is now produced as a mixture of heated supply air 41 and first mixed air 23. The portions of the warmed Zuführluft41 and the first mixed air 23 are adjusted by the pivoting of the second flap 22 and can each be between 0% and 100%. In this way, the temperature of the second mixed air 24 can be regulated very finely. Here, the cases are included where the second mixing air 24 consists only of outside air 18 or exhaust air 38. It would also be conceivable to use only exhaust air 38 as feed air 42 and to adjust the temperature of the second mixed air 24 by mixing the warmed feed air 41 with exhaust air 38.

As already mentioned, the temperature of the second mixed air 24 should not exceed the permissible maximum value, since ultimately the second mixed air 24 is fed to the heat pump 26 via a seventh air feed line 27. That heat is extracted from the second mixed air 24 by the heat pump 26. Accordingly, the seventh air supply pipe 27, the second door 22 and the fifth air supply pipe 25 can be regarded as means for supplying the supply air 41 warmed by the tiled stove 1 to the heat pump 26.

The operation in which no outside air 18 but only exhaust air 38 is supplied to the fourth air supply pipe 39 and the sixth air supply pipe 40 by means of the first door 21 may also be referred to as recirculating air operation. For reasons of energy efficiency, this should then be chosen when the temperature of the exhaust air 38 is above that of the outside air 18.

REFERENCE LIST 1 Tiled stove 2 First inner shell 3 Extreme shell 4 Air gap 5 Air inlet 6 Air outlet 7 Second inner shell 8 Ventilation unit 9 Fan 10 Exhaust air fan 11 Heat exchanger 12 First air supply line (to the air inlet) 13 Second air supply line (from the tiled stove to a living room) 14 Damper in the first air supply line 15 Flap in third air supply line 16 First air return line (from a living room to the ventilation unit) 17 Living space 18 Outside air 19 Exhaust air 20 Air mixing box 21 First flap of air mixing box 22 Second flap of air mixing box 23 First mixed air 24 Second mixed air 25 Fifth air supply line (from tiled stove to second flap of air mixing box ) 26 Heat pump 27 Seventh air supply line (from the second flap of the air mixing box to the heat pump) 28 Second air return line (from the heat pump to the air mixing box) 29 Heat pump fan 30 Heat pump heat exchanger 31 Water circuit 32 Flow 33 Return 34 Circulation pump 35 Storage 36 Third air supply line (from the ventilation unit to the living room) 37 Exhaust air from the living space 38 Exhaust air from the heat pump 39 Fourth air supply line (from the first flap of the air mixing box to the tiled stove) 40 Sixth air supply line (from the first to the second flap the air mixing box) 41 Supply air warmed by the tiled stove 42 Supply air 43 Pull

Claims (23)

Claims 1. A heating system comprising a tiled stove (1) and at least one air supply means to supply air (42), which is not intended for combustion in the tiled stove (1) and both of which is preferably outside air (18), the tiled stove (1) supply, where the tiled stove (1) Luftanwärmmittel (4), to heat the supply air (42). 2. Heating system according to claim 1, characterized in that the at least one air supply means includes a ventilation device (8) and that the ventilation device (8) comprises at least one fan (9) to suck feed air (42) and via a first air supply line (12) to the tiled stove (1) to blow and / or suck. 3. Heating system according to claim 2, characterized in that at least a second air supply line (13) is provided, by means of which a tiled stove (1) an¬ heated supply air (41) at least one living space (17) can be fed. 4. Heating system according to one of claims 2 to 3, characterized in that at least one third air supply line (36) is provided, by means of which the feed air (42) directly from the ventilation device (8) at least one living space (17) can be fed. 5. Heating system according to claim 4, characterized in that at least one controllable flap (14, 15) is provided to the supply air (42) selectively through the ers¬te air supply line (12) and / or the at least one third air supply line (36) füh¬ren. 6. Heating system according to one of claims 2 to 5, characterized in that at least one first air return line (16) is provided, by means of which exhaust air (37) from at least one living space (17) can be fed to the ventilation device (8), and in that the ventilation device (8 ) comprises a heat exchanger (11), by means of which the exhaust air (37) heat can be withdrawn and the feed air (42) can be fed. 7. Heating system according to claim 6, characterized in that the ventilation device (8) comprises at least one exhaust air fan (10) to suck the exhaust air (37) and deliver it as forward air (19) to the outside. A heating system according to claim 1, characterized in that the heating system comprises a heat pump (26) and means (25, 22, 27) are provided to supply a feed air (41) warmed by the tiled stove (1) to the heat pump (26). Heating system according to claim 8, characterized in that the at least one air supply means includes an air mixing box (20) and that the air mixing box (20) comprises a first flap (21) to control the composition of the feed air (42) corresponding to the chute ¬chelofen (1) via a fourth air supply line (39) can be fed, and / or the composition of a first mixed air (23) as selectable, preferably continuously selectable ratio of outside air (18) and exhaust air (38) from the heat pump ( 26) via a second air return line (28) dischargeable and at least partially the first flap (21) can be supplied to adjust. 10. A heating system according to claim 9, characterized in that the air mixing box (20) comprises a second flap (22) to the composition of a second mixed air (24) as a selectable, preferably continuously selectable ratio of the first mixing air (23) a sixth air supply line (40) from the first flap (21) of the second flap (22) can be supplied, and the tiled stove (1) warmed supply air (41) via a fifth air supply line from the tiled stove (1) of the second flap (22) can be set to adjust. 11. Heating system according to claim 10, characterized in that a seventh Luftzu¬ lead (27) is provided, by means of which the second mixed air (24) of the heat pump (26) can be fed, wherein by means of the heat pump (26) of the second mixed air (24 ) Heat-extractable and a heating fluid circuit (31), which preferably has a fluid reservoir (35), is transferable. Heating system according to claim 11, characterized in that the heat pump (26) comprises a fan (29) with which the second mixed air (24) can be sucked in via the seventh air supply line (27) and the exhaust air (38) via the second air return line (28 ) is dissipatable. 13. Heating system according to one of claims 10 to 12, characterized in thatTemperatursensoren and a cooperating with these control unit are provided to the first flap (21) and / or the second flap (22) in dependence on the temperature of the exhaust air (38) and / or the outside air (18) and / or the tiled stove (1) and / or the feed air (42) and / or the feed air (41) and / or the second mixed air (24) heated by the tiled stove (1) to control. A heating system according to any one of claims 9 to 13, characterized in that the air mixing box (20) is formed as a structural unit comprising the first flap (21) and the second flap (22), the flaps (21, 22) respectively have a pivoting range of 90 ° and preferably electric motors for moving the flaps (21, 22) are provided. 15. A method of operating a heating system with a heated tiled stove (1), wherein supply air (42), which is not intended for combustion in the tiled stove (1) and which is preferably external air (18), the tiled stove (1) supplied by Ansau¬gen or blowing, warmed by means of the tiled stove (1) and as a from the tiled stove (1) warmed supply air (41) then weg¬ led away from the tiled stove (1). 16. The method according to claim 15, characterized in that the warmed supply air (41) at least one living space (17) is supplied. 17. The method according to claim 16, characterized in that an exhaust air (37) from the at least one living space (17) heat is extracted before the exhaust air (37) is led to the outside, and that the heat of the feed air (42) is supplied. 18. The method according to any one of claims 16 to 17, characterized in that the mit¬tels the tiled stove (1) warmed supply air (41) with air, which has not been warmed by means of Kachel-ofens (1) is mixed before it is the at least one Wohn¬raum (17) is supplied. 19. The method according to any one of claims 16 to 18, characterized in that air is then only the at least one living space (17) is supplied, if this air has a temperature less than or equal to a maximum value, the maximum value preferably in the range of 45 ° C to 52 ^ lies. 20. The method according to claim 15, characterized in that the warmed supply air (41) of a heat pump (26) is supplied. 21. The method according to claim 20, characterized in that a first mixed air (23) is generated by external air (18) with at least part of an exhaust air (38) of the heat pump (26) is mixed in a selectable ratio that a second mixed air (24) is generated by the warmed feed air (41) is mixed with the first mixed air in a selectable ratio, and that the second mixed air (24) of the heat pump (26) is supplied. 22. The method according to claim 21, characterized in that the second mixed air (24) is supplied to the heat pump only if the second mixed air (24) has a temperature smaller than a maximum value, the maximum value preferably 35 ^ 0 carries. 23. The method according to claim 22, characterized in that the mixing ratio of the first mixed air (23) and / or the mixing ratio of the second mixed air are selected so that the temperature of the second mixed air (24) is less than or equal to the Maximal¬ value.