System for controlling a function of a sauna stove, sauna stove, and method for controlling a function of a sauna stove

Abstract

The invention relates to a system for controlling a function of a sauna stove (10), which system includes a sauna stove (10) arranged in a sauna room (8), wherein the sauna stove (10) includes a stone space (14) that includes a thermal mass capable of being heated to a temperature of 200-700 °C and of evaporating water dispensed into the stone space ( 14 ),and a sensor (50) for detecting a physical phenomenon caused in the sauna room (8) by water evaporating in the stone space (14) and software means for identifying the physical phenomenon, by means of which the system is configured to identify an instance of water being thrown into the stone space, wherein the system is configured, using the software means, to momentarily adjust a function of the sauna stove (10) based on the detected instance of water being thrown into the stone space. The invention also relates to a corresponding sauna stove and to a corresponding method.

Description

[0001] SYSTEM FOR CONTROLLING A FUNCTION OF A SAUNA STOVE, SAUNA STOVE,

[0002] AND METHOD FOR CONTROLLING A FUNCTION OF A SAUNA STOVE

[0003] The invention relates to a system for controlling a function of a sauna stove, to a sauna stove, and to a method for controlling a function of a sauna stove.

[0004] A sauna stove in what is known as a Finnish sauna includes a stone space that is filled with heat-retaining stones or some other heat-retaining mass, such as a ceramic material. The mass in the stone space is typically heated to a temperature of around 200-700 °C in operation. When the sauna is in operation, water is dispensed intermittently into the hot stone space, i.e. water is thrown into the hot stone space to create steam. The throwing of water into the stone space to create steam can be performed, for example, manually with a ladle or automatically through the control of a valve. Water dispensed into the stone space of the sauna stove in operation thus evaporates quickly and forms vapour, or steam, which rises upwards out of the stone space and spreads into the room. The hot stone space of the sauna stove simultaneously also contributes to the heating of the air in the sauna room, the air typically being heated to a temperature of around 60-120

[0005] Throwing water into the stone space, i.e. the dispensing and evaporation of water in the stone space of the sauna stove, causes physical phenomena in the sauna room. Among other things, throwing water into the hot stone space leads to a change in air humidity in the sauna room. The condensation of the water vapour on the user's skin transfers thermal energy to the user's skin and thus causes the sensation one gets from a fresh batch of sauna steam. In addition, the dispensing and evaporation of water in the stone space produces, among other things, a sound that the user can hear.

[0006] Systems are known in the prior art that can detect the presence of a user in the sauna and that can control a function of a sauna stove based on this information. It is not possible with the solutions according to the prior art, however, to influence a function of a sauna stove and the conditions in the sauna with the precision of a single instance of water being thrown into the stone space.

[0007] The object of the invention is to provide a system, a sauna stove and a method which make it possible to detect an instance of water being thrown into the stone space and to control a function of the sauna stove in a novel manner. The characteristic features of a system according to the invention are set out in the attached patent claim 1, the characteristic features of a sauna stove according to the invention are set out in the attached patent claim 13, while the characteristic features of a method according to the invention are set out in the attached patent claim 14.

[0008] A system according to the invention for controlling a function of a sauna stove includes

[0009] - a sauna stove arranged in a sauna room, wherein the sauna stove includes a stone space that includes a thermal mass capable of being heated to a temperature of 200-700 °C and of evaporating water dispensed into the stone space, and

[0010] - a sensor for detecting a physical phenomenon caused in the sauna room by water evaporating in the stone space and software means for identifying the physical phenomenon, by means of which the system is configured to identify an instance of water being thrown into the hot stone space, wherein the system is configured, using the software means, to momentarily adjust a function of the sauna stove based on the detected instance of water being thrown into the stone space.

[0011] A physical phenomenon caused by the throwing of water into the hot stone space can be, for example, a change in air humidity in the sauna room, or a change in the temperature of the air in the sauna room, or a change in the optical properties of the air, or a sound. The sensor can be any sensor according to the prior art capable of producing a detectable signal from a physical phenomenon caused by water being thrown into the stone space. The selected sensor can be configured to monitor the sauna room for the complete duration of a sauna session. In this case, the system must include software means for identifying a change produced in the continuously generated measurement signal of the sensor by an instance of water being thrown into the stone space. Software means is broadly defined here as any computer program that includes software code means configured to identify a change in the measurement signal of the sensor caused by an instance of water being thrown into the stone space when the computer program is executed on a computer. The software means can be arranged, for example, in a control unit of the sauna stove or in a separate computer. Data relating to instances of water being thrown into the stone space detected by the system can be utilized for a selected application, such as for controlling functions of the sauna stove, or for a lifestyle application by providing the user of the sauna with data relating to the sauna session. In general, the characteristic profile for each identifiable phenomenon can either be learned or defined deterministically.

[0012] In other words, the system allows a function of a sauna stove to be momentarily, actively and automatically controlled during a sauna session with the precision of a single instance of water being thrown into the stone space. More specifically, the throwing of water into the stone space is configured to cause a change in a function of the sauna stove that can affect the short-term conditions in the sauna room and thereby the sauna experience of the user. A change in a function of the sauna stove can effect a change in the steam intensity experienced by the user.

[0013] The sauna stove used in the system can be any sauna stove according to the prior art. The stone space of the sauna stove can be configured to be heated by resistors or by burning wood or gas or a combustible liquid, such as oil, or by friction generated by an electrically operated turbine. It is thus possible to produce the required temperature in the stone space.

[0014] The system can be configured to modify a function of the sauna stove for 5-120 seconds, preferably for 10-60 seconds, as of a detected instance of water being thrown into the stone space, in such a manner that the system is configured to modify a steam intensity in a selected manner. The system is thus able to influence the conditions in the sauna room with the precision of a single instance of water being thrown into the stone space.

[0015] Preferably, the sauna stove is a sauna stove based on natural convection. In other words, the sauna stove does not include a fan to produce a forced convection, but rather heat is transferred from the stone space to the sauna room mainly by natural convection. The structure of the sauna stove is thus simple .

[0016] Preferably, the system is configured to adjust the flow of air flowing through the stone space of the sauna stove momentarily based on a detected instance of water being thrown into the stone space. It is thus possible to momentarily increase the heat transfer from the sauna stove to the sauna room, whereby it is possible to influence the intensity of the sauna steam experienced by the user. This is particularly useful in sauna stoves based on natural convection in which the flow through the sauna stove is typically poor.

[0017] In one embodiment, the sensor is a humidity sensor configured to measure the air humidity in the sauna room. The water that has evaporated in the stone space of the sauna stove passes into the air of the sauna room, where it momentarily increases the air humidity in the sauna room. The humidity sensor measuring the humidity in the sauna room can detect a momentary increase in humidity resulting from an instance of water being thrown into the stone space, based on which it is possible to identify an instance of water being thrown into the stone space. There is typically a continuous change in air humidity during a sauna session, but a momentary increase in humidity resulting from water being thrown into the stone space can be distinguished from long-term changes in humidity by the software means.

[0018] In one embodiment, the sensor is a sensor capable of detecting a sound produced by evaporating water, such as a microphone. It is thus possible to detect a sound produced by water being thrown into the hot stone space, i.e. by the evaporation of water in the stone space, based on which an instance of water being thrown into the stone space can be detected and identified. It is also possible to use, instead of a microphone, some other sensor capable of detecting a sound. The sensor can be configured to monitor selected frequencies, so that the sound caused by an instance of water being thrown into the hot stone space can be better distinguished from other sounds in the sauna room. As far as the detection of this sound is concerned, the sound profile of water being thrown into a hot stone space is also very specific and easy to identify.

[0019] In one embodiment, the sensor is a temperature sensor. The creation of steam due to water being thrown into the stone space produces a small momentary change in local temperature levels in the sauna room, which can be detected by the temperature sensor and distinguished from long-term temperature changes by the software means.

[0020] In one embodiment, the sensor is an optical sensor, preferably an infrared sensor. Water vapour produced by evaporation in the stone space and spreading out from the stone space causes momentary changes in the optical properties of the air in the sauna room, such as absorption or emission or reflection, which changes can be detected by the optical sensor and identified by the software means.

[0021] In one embodiment, the sensor is a sensor that measures electrical conductivity. The electrical conductivity of the air in the sauna room depends on the air humidity, which changes as the result of steam created by water being thrown into the hot stone space. It is thus possible to detect a change in the electrical conductivity of the air caused by an instance of water being thrown into the stone space.

[0022] Alternatively, the sensor can also be a radar or video camera that detects micromotion.

[0023] Alternatively, the sensor can also be a mechanical sensor, such as a switch or a valve that is moved by the force of the pressure generated by evaporating water. In this case, the sauna stove can include, for example, a flow channel, which includes a valve that opens under the pressure of the steam and that is configured to open the flow channel running through the sauna stove in connection with water being thrown into the stone space. In this case, the opening of the valve can be identified by the software means for a selected purpose. It is also possible to use a mechanical switch that is moved by the force of steam pressure without a separate flow channel.

[0024] The sensor can be arranged on the ceiling or on a wall of the sauna room. Water that has evaporated in the stone space mainly diffuses from the sauna stove upwards towards the ceiling and upper parts of the walls in the sauna room, so that the physical phenomena caused by the creation of steam in the stone space are more pronounced in the upper part of the sauna. It is consequently easier to detect these phenomena in the upper part of the sauna. The sensor can, however, be arranged at any location in the sauna room where a signal caused by water being thrown into the hot stone space can be formed in the sensor. The sensor can also be arranged close to the stone space of the sauna stove.

[0025] A single sensor or a plurality of sensors of different types can be provided. An instance of water being thrown into the hot stone space can be detected more reliably when a plurality of sensors that measure different variables is used. It is possible to use any of the sensors described in the foregoing together or separately.

[0026] Preferably, the software means include artificial intelligence (Al) for identifying a physical phenomenon caused by water evaporating in the stone space. In this case, training material for the artificial intelligence of the software means can take the form of a signal measured by a sensor in a selected sauna room, and the system can learn using Al to identify a change in the signal of the selected sensor that is produced by a phenomenon caused by water being thrown into the hot stone space in that particular sauna. For example, when the sensor is a microphone, the system can be taught using Al to identify, in the measurement signal of said microphone, a signal caused by water being thrown into the hot stone space in the soundscape of a particular sauna room.

[0027] Instead of artificial intelligence, it is also possible to use a software algorithm with corresponding features.

[0028] In one embodiment, the sauna stove includes a flow channel that includes a valve, wherein the valve is configured to open when the system identifies an instance of water being thrown into the stone space, which enables an increased air flow through the stone space. The flow of air through the stone space of the sauna stove can thus initially be kept low, which facilitates the storage of a temperature in the stone space that is significantly higher than that of the sauna room. When an instance of water being thrown into the stone space is detected and identified in the system, the valve and the flow channel can be opened to increase the air flow through the stone space. This increases the heat transfer from the stone space to the air in the sauna room, which increases the steam intensity and thus the sauna steam effect experienced by the user.

[0029] The valve can be configured to close within 5-120 seconds, preferably within 10-60 seconds, of opening. This allows the flow through the sauna stove to only be affected for the time it takes the liquid water dispensed into the stone space to evaporate in the stone space and to travel to the skin of the user, thus creating the sauna steam effect. The valve can consequently be closed between instances of water being thrown into the stone space, which allows a much higher temperature to be stored in the stone space than in the sauna room. In one embodiment, the system includes memory means and the software means are configured to store an instance of water being thrown into the hot stone space detected by the sensor and identified by the software means in a memory on the memory means together with a time corresponding to the detected instance of water being thrown into the stone space, and the system includes display means for displaying an instance and time of water being thrown into the stone space stored on the memory means. It is thus possible, for example, to generate measured data for the user regarding instances of water being thrown into the stone space and to display this data visually to the user, for example in connection with other health benefits of the sauna session. It is also possible for this to be implemented without modifying a function of the sauna stove in connection with water being thrown into the stone space.

[0030] A sauna stove according to the invention includes

[0031] - a stone space that includes a thermal mass capable of being heated to a temperature of 200-700 °C and of evaporating water dispensed into the stone space,

[0032] - a sensor for detecting a physical phenomenon caused by water evaporating in the stone space and software means for identifying the physical phenomenon, by means of which the sauna stove is configured to identify an instance of water being thrown into the stone space, wherein the sauna stove is configured, using the software means, to momentarily adjust one of its functions based on a detected instance of water being thrown into the stone space.

[0033] The system described above can thus be integrated into the sauna stove, in which case it is not necessary to install a separate sensor and control means in the sauna room. The preferred embodiments of the system described in the foregoing can be integrated into the sauna stove via the necessary modifications .

[0034] In a method according to the invention for controlling a function of a sauna stove

[0035] - a sauna stove is arranged in a sauna room, wherein the sauna stove includes a stone space, which includes a thermal mass that is heated to a temperature of 200-700 °C and into which water is dispensed in order to be evaporated, and

[0036] - a physical phenomenon caused in the sauna room by water evaporating in the stone space is detected by a sensor and identified by software means,

[0037] - a function of the sauna stove is momentarily adjusted based on the detected instance of water being thrown into the stone space .

[0038] It is thus possible to detect and identify an instance of water being thrown into the stone space in a sauna automatically, and this information can be used for a selected application for controlling the operation of the sauna stove.

[0039] Preferably, the function of the sauna stove is controlled repeatedly during a sauna session. In other words, the function of the sauna stove is not only controlled in connection with the initialization of a sauna session, but actively throughout the sauna session. It is thus possible to influence the operation of the sauna stove according to the conditions in the sauna room and / or according to a selection of the user, for example in connection with each detected instance of water being thrown into the stone space.

[0040] Preferably, the function of the sauna stove is controlled for 5-120 seconds, preferably 10-60 seconds, as of a detected instance of water being thrown into the stone space, in such a manner that a steam intensity is modified in a selected manner. It is thus possible in the method to influence the conditions in the sauna room with the precision of a single instance of water being thrown into the stone space.

[0041] Preferably, the flow of air flowing through the stone space of the sauna stove is adjusted momentarily based on a detected instance of water being thrown into the stone space. It is thus possible to momentarily increase the heat transfer from the sauna stove to the sauna room, whereby it is possible to influence the intensity of the sauna steam experienced by the user .

[0042] In one embodiment, when an instance of water being thrown into the stone space is detected by the sensor and identified by the software means, a valve in the sauna stove is opened simultaneously, said valve opening a flow channel in the sauna stove through which air is conveyed through the stone space of the sauna stove. This allows the air flow through the stone space to be increased momentarily, whereby the heat transfer from the stone space to the air in the sauna room can be increased .

[0043] In one embodiment, an instance of water being thrown into the stone space detected by the sensor and identified by the software means is stored in a memory on memory means together with a time corresponding to the detected instance of water being thrown into the stone space, and the stored instance and time of water being thrown into the stone space are displayed by display means. It is thus possible to generate measured data for the user, which data can be displayed to the user visually.

[0044] Preferably, artificial intelligence (Al) is used in the software means, wherein the artificial intelligence is trained to identify a signal generated in a sensor by an instance of water being thrown into the stone space in a selected sauna room. The method can thus be reliably adapted to different, individual sauna rooms in which the signal measured by the sensor and the momentary change in the signal caused by water being thrown into the stone space can be unique.

[0045] More specifically, the sensor can generate an electrical signal caused by the physical phenomenon caused by water being thrown into the stone space, which is read by the software means. The software means can generate a signal, for example an electrical signal, which is sent to the sauna stove. The sauna stove includes an actuator, which receives the signal and initiates an action that modifies a function of the sauna stove, for example the flow through the stone space. For example, when an instance of water being thrown into the stone space is detected, a signal can be sent that produces an increase in the flow rate through the stove, for example by opening the valve for 5-120 seconds, preferably 10-60 seconds, and then closing the valve.

[0046] The invention is described in detail in the following with reference to the attached drawings illustrating embodiments of the invention, wherein

[0047] Figure 1 shows a system according to the invention for identifying an instance of water being thrown into the stone space,

[0048] Figure 2 shows a signal produced by a sensor of a system according to the invention as a function of time,

[0049] Figure 3 shows a sauna stove according to the invention for detecting an instance of water being thrown into the stone space, Figure 4 shows a second system according to the invention for detecting an instance of water being thrown into the stone space.

[0050] Figure 1 illustrates a system according to the invention for detecting an instance of water being thrown into a stone space, which system includes a sauna stove 10 arranged in a sauna room 8. The sauna stove 10 includes a stone space 14 that includes a thermal mass capable of being heated to a temperature of 200- 700 °C and of evaporating water dispensed into the stone space 14. The system here includes a sensor 50 arranged on the ceiling of the sauna room 8 for detecting a physical phenomenon caused in the sauna room 8 by water evaporating in the stone space 14, and software means arranged in a control unit 60 of the sauna stove 10 for identifying the physical phenomenon. The stone space 14 is configured to be heated by resistors 16. The invention does not depend on the manner in which the stone space 14 is heated so that the invention can be adapted to any sauna stove according to the prior art. The stone space 14 here includes heat-retaining stones 15 arranged inside the frame 12 of the sauna stove 10 as the thermal mass.

[0051] The system shown in Figure 1 is configured, using the software means, to momentarily adjust a function of the sauna stove 10 based on a detected instance of water being thrown into the stone space. The controllable function can be, for example, the flow through the stone space 14 of the sauna stove 10 or other factors affecting heat transfer, or the heating power of the sauna stove 10.

[0052] In this embodiment, the sensor 50 is a humidity sensor that is configured to measure the humidity in the sauna room 8. Figure 2 shows a signal produced by the sensor 50 as a function of time. The signal measured by the sensor 50 also varies when water is not being thrown into the stone space, i.e. during times tl and t3 in Figure 2, which is what is known as a background signal. During instances of water being thrown into the stone space, however, i.e. during times t2 and t4 in Figure 2, a momentary change is discernible in the signal that differs from the variation in the signal during times tl and t3. Using the software means, the system can identify in the signal the times t2 and t4 at which water was thrown into the stone space. For example, for the signal shown in Figure 2, existing peak detection algorithms can be used to identify instances of water being thrown into the stone space by identifying local peaks of the measurement signal according to a selected criterion.

[0053] The sensor 50 shown in Figure 1 can also be a microphone or a temperature sensor or an optical sensor, such as an infrared sensor. When alternative sensors 50 are used, such as a microphone, the signal can differ significantly from the signal shown in Figure 2, with respect to both the background signal and the change caused by an instance of water being thrown into the stone space. The algorithm used by the software means must consequently be adapted to the measurement signal of the sensor 50 used in the system. The measurement signal can also be unique to each sauna room 8, in which case the system can be calibrated so as to be tailored to a particular sauna room 8.

[0054] Preferably, the software means in the system includes artificial intelligence for identifying a physical phenomenon caused by water evaporating in the stone space 14. In this case, the system uses a signal measured in each sauna room 8 to train the software means of the system, so that the system can be readily and reliably calibrated so as to be tailored to each sauna room 8. Figure 3 shows a sauna stove 10 according to the invention that includes the features of the system described in the foregoing in connection with Figure 1. The sauna stove 10 includes a stone space 14 that includes a thermal mass capable of being heated to a temperature of 200-700 °C and of evaporating water dispensed into the stone space 14. The stone space 14 is configured to be heated by resistors 16. The invention does not depend on the manner in which the stone space 14 is heated so that the invention can be adapted to any sauna stove according to the prior art. The stone space 14 here includes heatretaining stones 15 arranged inside the frame 12 of the sauna stove 10 as the thermal mass.

[0055] The sauna stove 10 includes a sensor 50 for detecting a physical phenomenon caused by water evaporating in the stone space 14 and software means for identifying the physical phenomenon. The sensor 50 is arranged here in an upper part of the stone space 14 inside the frame 12, where a physical phenomenon caused by water evaporating in the stone space 14 is most pronounced. The sensor 50 here is a humidity sensor, although the other sensors mentioned in the foregoing are also possible. The software means can be arranged, for example, in a lower part of the sauna stove 10, which is where the temperature is lowest, and thus the best place to arrange the software means.

[0056] The sauna stove 10 shown in Figure 3 is configured, using the software means, to momentarily adjust a function of the sauna stove 10 based on a detected instance of water being thrown into the stone space. The controllable function can be, for example, the flow through the stone space 14 of the sauna stove 10 or other factors affecting heat transfer, or the heating power of the sauna stove 10. Figure 4 shows an embodiment of the system according to the invention in which the controllable function of the sauna stove 10 is the flow of air flowing through the stone space 14. A detection of an instance of water being thrown into the stone space is thus used here to control the operation of the sauna stove 10 by adjusting the flow of air through the stone space 14. The sauna stove 10 includes a flow channel 20, which runs through the frame 12, and a valve 30, which is configured to open when an instance of water being thrown into the stone space is detected and identified by the system. The opening of the valve 30 allows air to flow from the flow channel 20 into the stone space 14 and onwards through the stone space 14. As it travels through the stone space 14, the air from outside the stone space 14 heats up and, as it leaves the stone space 14, mixes with the water vapour or sauna steam leaving the stone space 14. This renders the heat transfer from the stone space 14 to the air in the sauna room 8 more effective and increases the intensity of the steam. The valve 30 is configured to close within 5-120 seconds, preferably 10-60 seconds, of opening.

[0057] The stone space 14 is configured here to be heated by resistors 16. The stone space 14 here is partially enclosed in such a manner that the frame 12 of the sauna stove 10 covers more than 50% of the stone space 14. The stone space 14 here contains stones 15 as the heat-storing mass. The cross section of the sauna stove 10 shown in the figure is illustrative and the frame 12 does not have to be continuous around the stone space 14, but rather the frame 12 can include, in addition to the flow channel 20, other openings via which air can flow through the stone space 14. The sauna stove 10 can also be what is known as a caged sauna stove, in which the frame of the sauna stove consists at least partially of a metal mesh. In the system shown in Figure 4, the position of the valve 30 is controlled by a motor 34. A motor 34 is used here as a general designation for any electronic or mechanical actuator that can modify the opening state of the valve 30. The motor 34 can be, for example, an electric motor, such as a servo motor, or it is possible to use a solenoid valve. The motor 34 can also be a thermo-mechanical component, such as a capillary thermostat or a bimetal thermostat. The motor 34 and the valve 30 are connected to the control means of the system. When the system detects and identifies an instance of water being thrown into the stone space, the control system is configured to open the valve 30 by means of the motor 34 and thereby open the flow channel 20. The valve 30 can be programmed to remain open for a selected period of time, typically a few seconds or tens of seconds, after which the valve 30 is closed. When the valve 30 is closed, the air in the stone space 14 heats up and, when the valve 30 is reopened, cooler air flowing from the flow channel 20 pushes this warm air out of the stone space 14, while the air flowing from the flow channel 20 into the stone space 14 is simultaneously heated. The warm air flowing out of the stone space 14 mixes with the water vapour or steam leaving the stone space 14 and thus enhances the sauna steam effect.

[0058] In the embodiment shown in Figure 4, the system further includes a temperature sensor 40 that measures the temperature of the sauna room 8 and a temperature sensor 18 that measures the temperature of the stone space 14 of the sauna stove 10. This makes it possible to use measurement data of the temperature sensors 40, 18 in conjunction with an instance of water being thrown into the stone space detected by the sensor 50 and the software means to control the sauna stove 10. For example, a duration of the opening of the valve 30 in connection with an instance of water being thrown into the stone space can be controlled as a function of a reading of the temperature sensors 40, 18. Preferably, the control unit 60 includes input means with which a user can regulate the operation of the sauna stove 10 according to desired criteria based on measurement data of the sensor 50 and the temperature sensors 40, 18.

[0059] In one embodiment, the system includes memory means, and said software means are configured to store an instance of water being thrown into the stone space detected by the sensor 50 and identified by the software means in a memory on the memory means together with a time corresponding to the detected instance of water being thrown into the stone space, and the system includes display means for displaying an instance and time of water being thrown into the stone space stored on the memory means. The system can thus be configured, for example, for a lifestyle application, and the number of instances of water being thrown into the hot stone space can be visually displayed to the user together with their times. In this embodiment, a function of the sauna stove 10 is not necessarily controlled based on an identification of an instance of water being thrown into the stone space.

Claims

CLAIMS1. A system for controlling a function of a sauna stove (10) , which system includes- a sauna stove (10) arranged in a sauna room (8) , wherein the sauna stove (10) includes a stone space (14) that includes a thermal mass capable of being heated to a temperature of 200- 700 °C and of evaporating water dispensed into the stone space ( 14 ) , and- a sensor (50) for detecting a physical phenomenon caused in the sauna room (8) by water evaporating in the stone space (14) and software means for identifying the physical phenomenon, by means of which the system is configured to identify an instance of water being thrown into the hot stone space, wherein the system is configured, using the software means, to momentarily adjust a function of the sauna stove (10) based on the detected instance of water being thrown into the stone space .

2. The system according to claim 1, characterized in that the system is configured to modify a function of the sauna stove (10) for 5-120 seconds, preferably 10-60 seconds, as of a detected instance of water being thrown into the stone space, in such a manner the system is configured to modify a steam intensity in a selected manner.

3. The system according to claim 1 or 2, characterized in that the sauna stove (10) is a sauna stove based on natural convection .

4. The system according to any one of claims 1 - 3, characterized in that the system is configured to adjust the flow of air flowing through the stone space (14) of the saunastove (10) momentarily based on a detected instance of water being thrown into the stone space.

5. The system according to any one of claims 1 - 4, characterized in that the sensor (50) is a humidity sensor configured to measure the air humidity in the sauna room (8) .

6. The system according to any one of claims 1 - 4, characterized in that said sensor (50) is a sensor capable of detecting a sound produced by evaporating water, such as a microphone .

7. The system according to any one of claims 1 - 4, characterized in that said sensor (50) is a temperature sensor.

8. The system according to any one of claims 1 - 4, characterized in that said sensor (50) is an optical sensor, preferably an infrared sensor.

9. The system according to any one of claims 1 - 4, characterized in that said sensor (50) is a sensor that measures electrical conductivity.

10. The system according to any one of claims 1 - 9, characterized in that said software means includes artificial intelligence for identifying a physical phenomenon caused by water evaporating in the stone space (14) .

11. The system according to any one of claims 1 - 10, characterized in that the sauna stove (10) includes a flow channel (20) that includes a valve (30) , wherein the valve (30) is configured to open when the system identifies an instance of water being thrown into the stone space, which enables an increased air flow through the stone space (14) .

12. The system according to claim 11, characterized in that said valve (30) is configured to close within 5-120 seconds, preferably within 10-60 seconds, of opening.

13. A sauna stove (10) including- a stone space (14) that includes a thermal mass capable of being heated to a temperature of 200-700 °C and of evaporating water dispensed into the stone space (14) ,- a sensor (50) for detecting a physical phenomenon caused by water evaporating in the stone space (14) and software means for identifying the physical phenomenon, by means of which the sauna stove (10) is configured to identify an instance of water being thrown into the stone space, wherein the sauna stove (10) is configured, using the software means, to momentarily adjust one of its functions based on a detected instance of water being thrown into the stone space.

14. A method for controlling a function of a sauna stove (10) , wherein in the method- a sauna stove (10) is arranged in a sauna room (8) , wherein the sauna stove (10) includes a stone space (14) , which includes a thermal mass that is heated to a temperature of 200-700 °C and into which water is dispensed in order to be evaporated, and- a physical phenomenon caused in the sauna room (8) by water evaporating in the stone space (14) is detected by a sensor (50) and identified by software means,- a function of the sauna stove (10) is momentarily adjusted based on the detected instance of water being thrown into the stone space.

15. The method according to claim 14, characterized in that the function of the sauna stove (10) is controlled repeatedly during a sauna session.

16. The method according to claim 14 or 15, characterized in that the function of the sauna stove (10) is modified for 5-120 seconds, preferably 10-60 seconds, as of a detected instance of water being thrown into the stone space, in such a manner that a steam intensity is modified in a selected manner.

17. The method according to any one of claims 14 - 16, characterized in that the flow of air through the stone space (14) of the sauna stove (10) is adjusted momentarily based on a detected instance of water being thrown into the stone space.

18. The method according to any one of claims 14 - 17, characterized in that, when an instance of water being thrown into the stone space is detected by the sensor (50) and identified by the software means, a valve (30) in the sauna stove (10) is opened, said valve opening a flow channel (20) in the sauna stove (10) through which air is conveyed through the stone space (14) of the sauna stove (10) .

19. The method according to any one of claims 14 - 18, characterized in that the software means uses artificial intelligence, wherein the artificial intelligence is trained to identify a signal generated in a sensor (50) by an instance of water being thrown into the stone space in a selected sauna room ( 8 ) .

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