DE102022130039A1 - Procedure for commissioning a heater, control device, heater and computer program - Google Patents

Abstract

A method is proposed for starting up a heater (1) which is designed to burn a combustion mixture of combustion air and fuel gas which is fed to a burner (3) and ignited by an ignition device (12). The method comprises at least the following steps: a) detecting at least one location-specific environmental parameter and/or one state parameter of the heater (1), b) adapting an ignition ramp to the environmental parameters and/or state parameters of the heater (1) detected in step a), c) initiating an ignition process of the heater (1) with the ignition ramp adapted in step b). The proposed method enables the ignition ramp to be adapted to the environmental and state conditions of the heater (1) and can thus increase the safety and comfort of an ignition process.

Description

The invention relates to a method for commissioning a heating device, a control device, a heating device and a computer program.

A large number of heating devices are known which burn a mixture of a fuel, in particular gas or hydrogen, and ambient air in a combustion chamber in order to generate heat to supply a building or to provide hot water.

When such heaters are put into operation, a conveyor is usually started up to a target output and fuel is added to a conveyed volume flow of intake combustion air. The combustion mixture formed is fed to a burner of the heater and ignited by an ignition device, for example a spark or glow igniter. Due to the desire to enable the operation of a heater for changing ambient conditions and in particular several types of gas, the gas supply is usually operated with an ignition ramp during an ignition process, whereby a largely constant mass flow of combustion air is fed with a mass flow of fuel gas that increases from a start value to an end value within a safety period. The safety period is selected so that the escape of a critical (unburned) amount of fuel gas at the burner during an ignition process can be safely avoided.

The ignition ramp ensures that suitable starting conditions are set for different types of gas (for example, from a gas family) during an ignition process. There is a need to use heaters with a variety of gas types, which can result in very steep ignition ramps with a high gradient of the mass flow of fuel gas to be supplied. The associated short dwell times of a mixture composition can make ignition difficult during an ignition process. If the supplied combustion mixture cannot form a flame during an ignition process within a safety period, the start attempt is aborted.

Changing ignition conditions, such as a modulation point of the heater that needs to be approached during the ignition process or operating parameters of the heater, can have a significant impact on the ignition process. Problems during the ignition process can lead to unwanted noise and, if more severe, can also cause damage to the heater.

The EP 3 301 365 A1 proposes a method for controlling the ignition of a heater, in which an operating characteristic value recorded before the ignition is taken into account. The operating characteristic value can be suitable for representing a quality, type or calorific value of the fuel and/or a performance requirement for the heater. However, the proposed method is very complex, in particular the determination and consideration of the operating characteristic value must be tailored to the heater and is therefore prone to errors.

Based on this, the object of the invention is to propose a method for starting up a heater which at least partially overcomes the problems of the prior art described. In particular, a particularly simple and universally applicable method is to be proposed which enables a heater to be safely ignited even when the operating and environmental conditions of the heater change.

In addition, the invention should at least not significantly increase the complexity of a heating device, require only minor structural changes to a heating device and enable easy integration into an existing production process.

These objects are achieved by the features of the independent patent claims. Further advantageous embodiments of the solution proposed here are specified in the independent patent claims. It is pointed out that the features listed in the dependent patent claims can be combined with one another in any technologically reasonable manner and define further embodiments of the invention. In addition, the features specified in the patent claims are specified and explained in more detail in the description, with further preferred embodiments of the invention being presented.

1. a) Erfassen mindestens eines standortspezifischen Umgebungsparameters und/oder eines Zustandsparameters des Heizgerätes,
2. b) Anpassen einer Zündrampenfunktion an die in Schritt a) erfassten Umgebungsparameter und/ oder Zustandsparameter des Heizgerätes,
3. c) Initiieren einer Zündvorgangs des Heizgerätes mit der in Schritt b) angepassten Zündrampe.

A method for commissioning a heating device contributes to this, wherein the heating device is designed to burn a combustion mixture of combustion air and fuel gas, which is fed to a burner and ignited by an ignition device, and the method comprises at least the following steps:

1. a) Recording at least one site-specific environmental parameter and/or one status parameter of the heater,
2. b) adapting an ignition ramp function to the environmental parameters and/or status parameters of the heater recorded in step a),
3. c) Initiating an ignition process of the heater with the ignition ramp adjusted in step b).

Steps a), b) and c) can be carried out at least once in the specified order when carrying out the procedure regularly. In particular, steps a) to c) can be carried out each time the heater is started up. The procedure serves to ensure a safe ignition process or safe start-up of a heater and can in particular help to reduce noise during the ignition process and prevent damage to the heater.

The heating device can comprise at least one heat generator, in particular a gas condensing boiler, which releases heat energy by burning a fuel and can transfer it to a heating circuit via at least one heat exchanger, whereby consumers of the heating circuit can be connected to the heating device via a heating flow and a heating return of the heating circuit. The heating circuit can comprise a circulation pump, which can be set up to circulate a heat transfer medium (heating water) in the heating circuit, whereby heat transfer medium heated via a heating flow can be supplied to consumers, such as convectors or surface heating systems, and returned to the heat generator or the at least one heat exchanger via the heating return. Exhaust gases generated during combustion can be discharged to the outside via an exhaust duct of the heating device and a subsequent exhaust system.

The heater can have a conveying device, in particular a fan, which can supply a mixture of combustion air and fuel (hydrogen) to a burner of the heater. The conveying device can comprise a power control, in particular a speed controller. The heater can form a pneumatic gas-air connection in which a mass flow of combustion air is added to a mass flow of combustion air in accordance with a negative pressure (control pressure) of a throttle point, such as a Venturi nozzle, so that a predefined (predetermined) combustion air ratio (air ratio, lambda) can be set. The heater can alternatively have an electronic gas-air connection in which a conclusion can be drawn about the flames and the combustion air ratio (also referred to as lambda or air ratio) based on a signal from a flame monitor, so that it can be regulated. The heater can be set up to burn any fuel, in particular to burn a fuel gas, such as natural gas (NG), liquefied petroleum gas (LNG) or natural gas. The heater can also be set up to burn hydrogen as a fuel or a mixture containing hydrogen. The mixture may have a hydrogen content of at least 80% or at least 90%.

The heater can also have a flame monitor. An ionization electrode is often used for this purpose, which can use an ionization current from the flame to detect it. However, this principle cannot be used robustly with a hydrogen flame, since significantly fewer free charge carriers are produced when hydrogen is burned. Other methods are therefore often used with hydrogen-powered heaters, such as detecting the electromagnetic radiation emitted by the flame, in particular infrared (IR) and/or UV (ultraviolet) radiation, or detecting the flame temperature. A signal from a flame monitor can indicate the presence of a flame and allow a conclusion to be drawn about the combustion air ratio of the flame.

The heating device can also have an ignition device which is arranged on the burner in such a way that combustion mixture emerging from the burner can be ignited. The ignition device can in particular be an electrical ignition device whose output can be controlled electrically.

The ignition device can in particular be a spark igniter, whereby the intensity of the ignition spark formed can be adjusted by the applied electrical power. The intensity of the ignition spark, and thus the (electrical) power of the ignition device, can significantly influence the ignition process. The electrical power can be adjusted, for example, by an ignition voltage.

Alternatively, the ignition device can be a hot surface igniter, which can be heated electrically to a surface temperature above the ignition temperature of the combustion mixture. The electrical power of a hot surface igniter can be used to adjust its surface temperature and thus the ignition conditions of the combustion mixture at the burner.

Commissioning of a heater can proceed as follows. Firstly, for example, a control device of the heater can start up a conveyor device, which is usually designed as a fan, to a predetermined starting power or starting speed. Then, after the starting power or starting speed has been reached, a mass flow of fuel predetermined for the starting speed can be supplied and an ignition process can be initiated by commissioning the ignition device with a predetermined power. The predetermined mass flow of fuel can in particular be specified as a range that maps different gas types and ignition conditions and can therefore enable a safe ignition process for different gas types and/or ignition conditions. The range of the mass flow of fuel gas can be mapped by an ignition ramp within the safety period.

The ignition ramp can define a functional relationship between time and the mass flow of fuel gas to be supplied, whereby the ignition ramp must be regularly run through within a safety period of the ignition process. The safety period is selected so that if a flame does not form on the burner during an ignition process, no critical amount of unburned fuel (fuel gas) escapes, and is often in the range of 3 to 5 seconds. Since the safety period cannot be extended for reasons of operational safety, the entire ignition ramp must be run through within the safety period, which can lead to high rates of change in the mass flow of fuel gas during an ignition process. The functional relationship, also known as the ramp function, is usually a linear function that increases from a starting mass flow to a final mass flow. A stabilization time can then define a period of time in which a flame that has formed can stabilize before the heater can switch to free modulation following the ignition process. The stabilization time is often in the range of 2 to 5 seconds, although environmental conditions may also be taken into account.

angegeben werden. Die Steigerung m der Rampe kann mit: $$m=\frac{{\dot{v}}_1-{\dot{v}}_0}{t_1-t_0}$$

und der Offset b kann mit $$b=\frac{{\dot{v}}_0\times t_1-{\dot{v}}_1\times t_0}{t_1-t_0}$$

gegeben sein. Zum Zeitpunkt eines Auftretens einer Flamme t_F (die durch eine Flammenüberwachung erkannt werden kann), kann ein Volumenstrom v̇_s für die sich anschließende Stabilisierungszeit gebildet durch Addition einer Überhöhung des Volumenstromes v̇_Ü zu dem Volumenstrom Brenngas zum Zeitpunkt des Auftretens der Flamme v̇(t_F) eingestellt werden, der für den Stabilisierungszeitraum konstant gehalten werden kann, bevor das Heizgerät den Zündvorgang beendet und in eine freie Modulation übergeht: $${\dot{v}}_S=\dot{v}\left(t_F\right)+{\dot{v}}_{\ddot{\text{U}}}.$$

Thus, a ramp function can be given, for example, by a starting point v̇ ₀ at time t ₀ and an end point v̇ ₁ at time t _1. The safety period as the duration for the ramp function can thus be determined by t ₁ -t ₀ and the ramp function can be given by $$\dot{v}\left(t\right)=m\times t+b$$

The increase m of the ramp can be given as: $$m=\frac{{\dot{v}}_1-{\dot{v}}_0}{t_1-t_0}$$

and the offset b can be $$b=\frac{{\dot{v}}_0\times t_1-{\dot{v}}_1\times t_0}{t_1-t_0}$$

be given. At the time of occurrence of a flame t _F (which can be detected by a flame monitor), a volume flow v̇ _s for the subsequent stabilization period can be set by adding an increase in the volume flow v̇ _Ü to the volume flow of fuel gas at the time of occurrence of the flame v̇(t _F ), which can be kept constant for the stabilization period before the heater ends the ignition process and goes into free modulation: $${\dot{v}}_S=\dot{v}\left(t_F\right)+{\dot{v}}_{\ddot{\text{U}}}.$$

According to step a), at least one location-specific environmental parameter and/or a status parameter of the heater can be recorded.

A location-specific environmental parameter can in particular indicate environmental conditions at the location of the heater, such as air pressure, outside temperature, geodetic altitude (above sea level), wind speed and/or humidity of the ambient air. Likewise, a storm warning could be an environmental condition to be recorded.

A state parameter can be a parameter that describes or indicates a state of the heater. An example of this can be a temperature of the heater, in particular a temperature in the combustion chamber, which significantly influences the ignition conditions. Other examples of state parameters of the heater can be a temperature of the heater flow and/or the heater return.

A detection according to step a) can be carried out by measuring a parameter, for example by a control and regulation device of the heater. In particular, the detection of a location-specific environmental parameter can be carried out via a network, in particular the Internet. For this purpose, for example, a control and regulation device of the heater can be connected to a network for exchanging data. Likewise, existing smart home devices can be used to query location-specific environmental parameters. A measuring device (smart metering device) that can be connected to a smart home device could also provide information on ambient conditions or on the fuel supplied (quality, pressure, energy content, temperature),

According to step b), the ignition ramp function can be adapted to the ambient parameters and/or status parameters of the heater recorded in step a). The adaptation can relate to both the ignition ramp function, in particular its rise and offset, as well as a subsequent stabilization time. To do this, the ramp function can be adapted based on a recorded location-specific ambient parameter or a recorded status parameter, whereby the stabilization time can also be adapted. An extension of the stabilization time can seem sensible, for example, in the case of high wind speeds or a storm warning.

According to one embodiment, the ignition ramp can be adapted to several environmental or state parameters separately and one after the other. This allows a very specific and precise adaptation of the ignition ramp to the current ignition conditions.

According to one embodiment, in a step d), a diagnostic parameter that allows a conclusion to be drawn about the ignition process can be recorded and evaluated during the ignition process. The diagnostic parameter can be a parameter that allows a conclusion to be drawn about a pressure curve in the flow path (combustion air supply, fuel gas supply, mixture channel, exhaust pipe or system) of the heater, for example a volume or mass flow sensor in the combustion air supply or in the mixture channel, and/or a signal from the conveyor device, in particular a speed signal or a control signal from a speed controller of the conveyor device. Alternatively or cumulatively, a signal from a flame monitor on the heater can also be used as a diagnostic parameter, for example an ionization current of the flame or a signal from an optical sensor (UV sensor) that can be directed in the direction of a flame on the burner.

An evaluation of the recorded diagnostic parameters can include a comparison with reference values or characteristic maps. The reference values or characteristic maps can have been determined in advance using laboratory tests on a reference heater.

According to one embodiment, in a repeated process implementation, the evaluation of an ignition process from step d) can be included in the adaptation of the ignition ramp in step b).

According to one embodiment, if a critical ignition process is detected, the heater can be put into an error state in which restarting is blocked or can only be carried out by a qualified person. A critical ignition process can be detected, for example, by exceeding a pressure limit in the gas supply to the heater or by a lack of or insufficient flame formation.

According to a further embodiment, information about a result of an evaluation of the ignition process, a recognized critical ignition process or about the heater entering a fault state can be displayed via a display device (external or integrated in the heater) and/or made available for retrieval via a network, in particular the Internet, and/or sent as a message. For example, the information can be made available for retrieval on an appliance interface of the heater or on a network storage device (cloud). In this way, for example, a user/operator of the heater and/or a specialist company can advantageously be informed about the implementation of a method proposed here by means of a message and the specialist company can plan and carry out an appointment for maintenance and/or repair accordingly. In particular, this can bring about a rapid end to a fault state of the heater.

According to a further aspect, a computer program is also proposed which is set up to (at least partially) carry out a method presented here. In other words, this relates in particular to a computer program (product) comprising commands which, when the program is executed by a computer, cause the computer to carry out a method proposed here. The computer program can in particular be executed on a control and regulating device of the heating device.

According to a further aspect, a machine-readable storage medium is also proposed on which the computer program is stored. The machine-readable storage medium is usually a computer-readable data storage device.

According to a further aspect, a control and regulation device for a heating device is also proposed set up to carry out a method proposed here. For this purpose, the regulating and control device can, for example, have a processor and/or have access to one. In this context, the processor can, for example, carry out the method stored in a memory (of the regulating and control device). For this purpose, the regulating and control device can in particular be electrically connected to an ignition device, a conveyor device and a flame monitor. In addition, data recorded or required as part of the implementation of a method proposed here can be stored in a memory of the regulating and control device, for example environmental or state parameters recorded in step a) and/or reference values and/or characteristic maps for adapting the ignition ramp in accordance with step b).

According to a further aspect, a heating device is also proposed, designed to burn a combustion mixture of combustion air and combustion gas, which can be fed to a burner and ignited by an ignition device, and further comprises means which are adapted to carry out the steps of the method disclosed here. The means can comprise a regulating and control device. The heating device can be a gas heating device, in particular a hydrogen-operated gas heating device. The gas heating device can have a burner and a conveying device with which a mixture of fuel (hydrogen) and combustion air can be fed to the burner.

According to a further aspect, the use of a detected environmental parameter and/or a state parameter of the heater to adapt an ignition ramp for an ignition process of the heater is also proposed.

The details, features and advantageous embodiments discussed in connection with the method can also occur in the computer program, the control device, the heater and the use presented here and vice versa. In this respect, reference is made in full to the explanations there for a more detailed characterization of the features.

A method for starting up a heater, a control and regulating device, a heater and a computer program are therefore specified here, which at least partially solve the problems described with reference to the state of the art. In particular, the method for starting up a heater, the control and regulating device, the heater and the computer program as well as the use at least contribute to enabling a heater to be started up safely and conveniently. Noises generated during the ignition process can advantageously be reduced and a safe start of the heater can be made possible regardless of the ambient conditions and the operating state of the heater.

In addition, the invention can be used particularly advantageously without structural changes to a heating device in the form of an implementation of software.

• 1: einen Ablauf eines hier vorgeschlagenen Verfahrens,
• 2: ein hier vorgeschlagenes Heizgerät, und
• 3: Parameterverläufe, die sich bei Durchführung eines hier vorgeschlagenen Verfahrens einstellen können.

The invention and the technical environment are explained in more detail below with reference to the attached figures. It should be noted that the invention is not intended to be limited by the exemplary embodiments given. In particular, unless explicitly stated otherwise, it is also possible to extract partial aspects of the facts explained in the figures and combine them with other components and findings from the present description. In particular, it should be noted that the figures and in particular the size relationships shown are only schematic. They show:

• 1 : a sequence of a procedure proposed here,
• 2 : a heater proposed here, and
• 3 : Parameter curves that can occur when carrying out a procedure proposed here.

1 shows an example and schematically a sequence of a method proposed here. The execution of steps a), b) and c) shown with blocks 110, 120 and 130 can be carried out at least once in the order given in a regular process sequence. The method serves to increase the safety of a heating device 1, in particular one operated with hydrogen or with a hydrogen-containing mixture as fuel, during commissioning or an ignition process. The method enables an ignition ramp to be adapted to site-specific environmental parameters and/or state parameters of the heating device 1.

2 shows, by way of example and schematically, a heating device 1 proposed here. This can comprise a burner 3 arranged in a combustion chamber 8. Combustion air can be sucked in by a conveying device 2, in particular designed as a fan, via a combustion air supply 4. The conveying device 2 can be connected to a speed controller 6, which can regulate a speed n of the conveying device 2 by means of a pulse width modulated (PWM) signal. A gas valve 5 can control the sucked-in air mass flow of combustion air to add fuel gas from a gas supply 14 and comprise a safety valve and a gas control valve for controlling the mass flow of fuel gas to be added. The mixture of fuel gas and combustion air produced can flow via a mixture channel 11 to the burner 3 and be ignited there by the ignition device 12. The burner 3 can have a cylindrical shape, which can be attached with a base to a burner door 15 in such a way that combustion mixture can flow from the mixture channel into the burner 3. Heat generated during combustion can be transferred via a heat exchanger 20 to a heating circuit 19, via the heating flow 17 of which heat transfer medium of the heating circuit 19 can be supplied and returned to the heater 1 via a heating return 18. After combustion, the combustion products can be discharged to the outside via an exhaust pipe 9 of the heater 1 and an exhaust system 10.

The heating device 1 proposed here can be designed in particular for the combustion of hydrogen. In addition, the heating device 1 can have a (device for) flame monitoring 13 on/or in the burner door 15, which can be designed here as a sensor for UV (ultraviolet) radiation emitted by the flame.

A control and regulating device 7 can be set up to regulate the heating device 1. For this purpose, it can be electrically connected, for example, to the speed controller 6, the conveyor device 2, the gas valve 5, the flame monitor 13, the ignition device 12 and a network 16 (Internet). The control and regulating device 7 can be set up to carry out a method proposed here.

3 shows exemplary and schematic parameter curves that can occur when carrying out a method proposed here. The diagram shows a volume flow 7 supplied to the heater 1 as a function of time t. A first ignition ramp function 21 represents an unadapted ignition ramp function as a starting point for a method proposed here. This covers a large total volume flow range from a first volume flow 23 to a second volume flow 24 within a safety period continuously from a first time 26 to a third time 28 and thus enables ignition with a large number of gas types.

In block 110, according to step a), at least one location-specific environmental parameter and/or a status parameter of the heater 1 can be recorded. Step a) can be carried out in particular by the regulating and control device 7 of the heater 1, and signals from one or more sensors of the heater 1 or data from a network 16, such as the Internet, can be recorded.

In block 120, according to step b), the ignition ramp function can be adapted to the environmental parameters and/or state parameters of the heater 1 recorded in step a). 3 shows a second, adapted ignition ramp function 22, which was adapted by carrying out one of the steps b) in block 120. In step a) (block 110), a gas quality may have been detected using sensors of the heater 1, which leads to a reduction in the gradient and an increase in the offset of the second (adapted) ignition ramp function 22 compared to the first (unadapted) ignition ramp function 21, so that the adapted ignition ramp function 22 covers a volume flow space from a third volume flow 30 to the second volume flow 24.

In block 130, according to step c), an ignition process of the heater 1 can be initiated with the ignition ramp function 22 adapted in step b). To do this, the regulating and control device 7 can start the conveyor 2 up to a starting speed and, once this speed has been reached, trigger an admixture of fuel gas in accordance with the ignition ramp function 22 adapted in step b) and simultaneously initiate an ignition process. The adapted ignition ramp function 22 leads to a faster and smoother ignition, among other things due to the smaller volume flow space covered from the third volume flow 30 to the second volume flow 24.

At a second point in time 27, a flame can form on the burner 3. The flame formation at the second point in time 27 can be followed by a stabilization time 28 up to a third point in time 29, in which the volume flow is increased by the amount of an increase 25 and the flame can stabilize. Following the third point in time 29, the heater can switch to free modulation, and the ignition process is thus successfully completed.

According to an optional step d), a diagnostic parameter that allows a conclusion to be drawn about the ignition process can be recorded and evaluated during the ignition process. A suitable diagnostic parameter can be, for example, a speed n of the conveyor device 2. An evaluation of a recorded speed curve of the conveyor device 2 during the ignition process can be carried out, for example, by considering a change in the speed n triggered by the ignition process. If the change in speed exceeds a limit, hard ignition can be assumed.

As a precaution, it should be noted that the numerals used here ("first", "second", ...) primarily serve (only) to distinguish between several similar objects, sizes or processes, and in particular do not necessarily specify a dependency and/or sequence of these objects, sizes or processes. If a dependency and/or sequence is required, this is explicitly stated here or it is obvious to the person skilled in the art when studying the specifically described design. If a component can occur multiple times ("at least one"), the description of one of these components can apply equally to all or part of the majority of these components, but this is not mandatory.

List of reference symbols

1

heater

2

Conveyor system

3

burner

4

Combustion air supply

5

Gas valve

6

Speed controller

7

Control and regulation device

8th

Combustion chamber

9

Exhaust pipe

10

Exhaust system

11

Mixture channel

12

Ignition device

13

Flame monitoring

14

Gas supply

15

Burner door

16

network

17

Heating flow

18

Heating return

19

Heating circuit

20

Heat exchanger

21

first ignition ramp

22

second ignition ramp

23

first volume flow

24

second volume flow

25

Excessive volume flow

26

first point in time

27

second point in time

28

Stabilization time

29

third point in time

30

third volume flow

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• EP 3301365 A1 [0006]

Claims (15)

Method for commissioning a heater (1) designed to burn a combustion mixture of combustion air and fuel gas, which is fed to a burner (3) and ignited by an ignition device (12), comprising at least the following steps: a) detecting at least one location-specific environmental parameter and/or a state parameter of the heater (1), b) adapting an ignition ramp to the environmental parameters and/or state parameters of the heater (1) detected in step a), c) initiating an ignition process of the heater (1) with the ignition ramp adapted in step b). Procedure according to Claim 1 , wherein in step a) at least one environmental parameter at the location of the heater (1) is recorded, selected from the following group: outside temperature, air pressure, air humidity, wind speed. Procedure according to Claim 2 , wherein the at least one environmental parameter is retrieved from a network (16). Method according to one of the preceding claims, wherein in step a) at least one state parameter of the heating device (1) is detected, selected from the following group: temperature of the heating device (1), temperature in the heating flow (17) of a connected heating circuit (19), temperature in the heating return (18) of a connected heating circuit (19). Method according to one of the preceding claims, wherein a ramp function and a stabilization time are adapted as part of the adaptation of the ignition ramp in step b). Method according to one of the preceding claims, wherein in step b) an adjustment of the ignition ramp is carried out separately for each detected environmental parameter and/or state parameter of the heater (1). Method according to one of the preceding claims, wherein in a step d) a diagnostic parameter which allows a conclusion to be drawn about the ignition process is recorded and evaluated during the ignition process. Procedure according to Claim 7 , wherein the diagnostic parameter is selected from the following group: a pressure in a flow path of the heater (1), a speed of a conveying device (2) of the combustion mixture, a control signal of a speed controller (6) of the conveying device (2), a signal of a flame monitor (13) of the heater (1). Procedure according to Claim 7 or 8th , wherein, in a repeated process execution, an evaluation of an ignition process in step d) such as the adaptation of the ignition ramp in step b) is taken into account. Method according to one of the Claims 6 until 8th , wherein if a critical ignition process is detected during the evaluation in step d), the heater (1) is taken out of operation. Method according to one of the Claims 7 until 10 , wherein information about a result of the evaluation of the ignition process according to step d) or about a detected critical ignition process is made available for retrieval via a network (16) and/or sent by means of a message. Regulating and control device (7) arranged to carry out a method according to one of the Claims 1 until 11 . Heating device (1) designed to burn a combustion mixture of combustion air and fuel gas, which can be fed to a burner (3) and ignited by an ignition device (12), and further comprising means which are adapted to carry out the steps of the method according to one of the Claims 1 until 11 carry out. Computer program comprising commands which cause the heating device (1) of the Claim 13 the process steps according to one of the Claims 1 until 11 executes. Use of a site-specific environmental parameter and/or a state parameter of a heater (1) for adapting an ignition ramp for an ignition process of a heater (1).

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