A burner control system comprising: a first sensor having a first port connectable to an air supply, a second port, and a signal terminal; a second sensor having a first port connectable to the air supply, a second port, and a signal terminal; a third sensor having a first port connectable to the air supply, a second port, and a signal terminal; a first coupling point having a first port connected to the second port of the third sensor, a second port connectable to a fuel source, and a third port; a second coupling point having a first port connected to the second port of the second sensor, a second port connectable to a fuel source, and a third port; a third coupling point having a first port connected to the second port of the first sensor, a second port connected to the third port of the second coupling point, and a third port; a fourth coupling point having a first port connected to the third port of the third coupling point, a second port connected to the third port of the first coupling point, and a third port connectable to a combustion chamber; a processor having a first terminal connected to the signal terminal of the first sensor, a second terminal connected to the signal terminal of the second sensor, a third terminal connected to the signal terminal of the third sensor, and having a fourth terminal connected to a control terminal for the fuel source; the control terminal for the fuel source comprises a first variable restriction device having a first port for connection to a fuel supply, a second port for connection to the second port of the first coupling point, and a third port; a second variable restriction device having a first port for connection to the third port of the first variable restriction device and a second port for connection to the second port of the second coupling point; and wherein the system s configured to adjust the second variable restriction device between an opened position and a closed position, which adjusts an outputted reading of the second sensor; and the second sensor outputs a reading that is intended to be redundant with readings from the first sensor when the second variable restriction device is closed and the second sensor outputs a reading that is intended to be redundant with readings from the third sensor when the second variable restriction device is opened. a first sensor having a first port connectable to an air supply, a second port, and a signal terminal; a second sensor having a first port connectable to the air supply, a second port, and a signal terminal; a third sensor having a first port connectable to the air supply, a second port, and a signal terminal; a first coupling point having a first port connected to the second port of the third sensor, a second port connectable to a fuel source, and a third port; a second coupling point having a first port connected to the second port of the second sensor, a second port connectable to a fuel source, and a third port; a third coupling point having a first port connected to the second port of the first sensor, a second port connected to the third port of the second coupling point, and a third port; a fourth coupling point having a first port connected to the third port of the third coupling point, a second port connected to the third port of the first coupling point, and a third port connectable to a combustion chamber; a processor having a first terminal connected to the signal terminal of the first sensor, a second terminal connected to the signal terminal of the second sensor, a third terminal connected to the signal terminal of the third sensor, and having a fourth terminal connected to a control terminal for the fuel source; the control terminal for the fuel source comprises a first variable restriction device having a first port for connection to a fuel supply, a second port for connection to the second port of the first coupling point, and a third port; a second variable restriction device having a first port for connection to the third port of the first variable restriction device and a second port for connection to the second port of the second coupling point; and wherein the system s configured to adjust the second variable restriction device between an opened position and a closed position, which adjusts an outputted reading of the second sensor; and the second sensor outputs a reading that is intended to be redundant with readings from the first sensor when the second variable restriction device is closed and the second sensor outputs a reading that is intended to be redundant with readings from the third sensor when the second variable restriction device is opened.