The present disclosure relates to a method for operating a burner assembly comprising a burner (1) burning an air-fuel mixture. In a step of the method, a target value for an ionization current is specified. The burner (1) is operated in a first operating state at a first specified power level. The ionization current (9) is measured using an ionization electrode (5). The measured ionization current (9) is compared with the predefined target value and a deviation is determined. When the deviation exceeds a predefined threshold value, the burner (1) is transitioned to a second operating state at a second power level. The second power level is higher than the first power level. The second power level is determined as a function of the deviation.

A system for igniting a grill can include a solenoid valve, a flame rectification sensor, an igniter, and a control circuit connected to the solenoid valve and the flame rectification sensor. The solenoid valve controls flow of gas to the grill's burner and includes a switch that closes when a handle connected to the switch opens the solenoid valve. The control circuit sends current to the solenoid valve when the switch is closed to hold the solenoid valve open. After the switch closes, the igniter is ignited. After ignition, the control circuit monitors the presence of a flame with a flame rectification sensor. If no flame is detected after a certain amount of time, the control circuit stops sending current to the solenoid valve to close the solenoid valve.

A system for igniting a grill can include a solenoid valve, a flame rectification sensor, an igniter, and a control circuit connected to the solenoid valve and the flame rectification sensor. The solenoid valve controls flow of gas to the grill's burner and includes a switch that closes when a handle connected to the switch opens the solenoid valve. The control circuit sends current to the solenoid valve when the switch is closed to hold the solenoid valve open. After the switch closes, the igniter is ignited. After ignition, the control circuit monitors the presence of a flame with a flame rectification sensor. If no flame is detected after a certain amount of time, the control circuit stops sending current to the solenoid valve to close the solenoid valve.

A method for regulating a gas burner, wherein the gas burner has a combustion air supply fan whose rotational speed can be set variably, has the following steps:—operating the fan and detecting a fan rotational speed (nVBL);—changing the fan rotational speed;—measuring an ionization voltage (UION) which correlates with an ionization flow in a flame region of the gas burner;—finding a minimum of a gradient of the measured ionization voltage at the current fan rotational speed;—determining an operating point by measuring the current ionization voltage and storing as an operating point;—while the burner is operating, continuously measuring the current ionization voltage;—determining a deviation between the currently measured ionization voltage and the operating point;—checking whether the deviation (Delta UION) is within a predefined limit (UY) and carrying out a case differentiation: +if the deviation is within the predefined limit (UY), continuing the continuous measurement of the current ionization voltage; +if the deviation is not within the predefined limit (UY), repeating the method from the above change in the fan rotational speed.

A burner system and a retrofit flame control system for an existing burner system are disclosed. The burner system may include burner components, electrodynamic components, and a data interface. The data interface may receive a command for controlling the burner components and prepare a command for controlling the electrodynamic components at least partially based on the command for controlling the burner components.

A gas powered water heater includes a storage tank, a main burner, a flame sensor assembly, and a controller communicatively coupled to the flame sensor assembly. The flame sensor assembly includes a probe positioned proximate the main burner to couple an electric current to the main burner through a flame on the main burner and not to couple an electric current to the main burner when the flame is not present on the main burner, and a detector that provides signals representative of the electric current provided through the probe. The controller is programmed to determine a length of time taken for a transition between a signal representative of no electric current and a signal representative of a steady state electric current, and determine, based at least in part on the determined length of time, a strength of the flame on the main burner.

A flame sensor for a furnace of a heating, ventilation, and air conditioning (HVAC) system includes a sensor body and an electrically conductive member of the sensor body. The electrically conductive member is configured to be disposed within a flame region of a burner of the furnace and configured to receive electrical current from a controller of the furnace. The flame sensor also includes an anti-oxidation coating disposed on an outer surface of the electrically conductive member and configured to transmit the electrical current from the electrically conductive member. The anti-oxidation coating is configured to contact a flame produced by the burner and expose the electrical current to the flame.

A system including a burner configured to be coupled to a fuel line to deliver fuel to the burner and an igniter positioned adjacent to the burner and configured to ignite fuel emitted by the burner. The system further includes a valve configured to control a flow of fuel through the fuel line and a control module operably coupled to the igniter and to the valve. The control module is configured to send a signal to the igniter and to close the valve if a quality of a return electrical signal from the igniter is below a predetermined value.

A system for igniting a grill can include a solenoid valve, a flame rectification sensor, an igniter, and a control circuit connected to the solenoid valve and the flame rectification sensor. The solenoid valve controls flow of gas to the grill's burner and includes a switch that closes when a handle connected to the switch opens the solenoid valve. The control circuit sends current to the solenoid valve when the switch is closed to hold the solenoid valve open. After the switch closes, the igniter is ignited. After ignition, the control circuit monitors the presence of a flame with a flame rectification sensor. If no flame is detected after a certain amount of time, the control circuit stops sending current to the solenoid valve to close the solenoid valve.

A gas burner controller adapter for use in adapting a gas burner control device, which is configured to be connected to a flame ionization electrode and a separate ignition electrode, to operate in a gas burner that only includes a single electrode serving as both the flame ionization electrode and the ignition electrode.