Burner control system

A method for compensating for mass air flow provided to a burner, the method comprising:

• providing a flow of air to a combustion chamber of the burner via an air supply channel;
• providing a flow of gas to the combustion chamber of a burner via a fuel channel that extends from a gas valve to the combustion chamber;
• using a sensor to sense to a measure related to a flow and/or a pressure in a measurement channel, wherein the measurement channel is fluidly coupled between the fuel channel and an air bypass channel, wherein the air bypass channel extends from the air supply channel and provides a bypass flow of air that bypasses at least part of the air supply channel before being ultimately delivered to the combustion chamber;
• and
• adjusting the flow of air and/or the flow of gas to the combustion chamber based at least in part on the measure related to flow and/or pressure in the measurement channel.

A gas valve assembly comprising:

• a valve body;
• the valve body including an input port for receiving gas;
• the valve body including an output port for providing the received gas to a combustion chamber;
• a valve housed by the valve body, the valve situated fluidly between the input port and the output port of the valve body for regulating a flow of gas that is delivered from the input port to the output port of the valve body through a fuel channel;
• a valve actuator for controlling a position of the valve;
• a mass air flow sensor housed by the valve body, the mass air flow sensor including a first port and a second port;
• the valve body defining a fuel bypass channel, wherein the fuel bypass channel extends off the fuel channel downstream of the valve and provides a bypass flow of fuel that bypasses at least part of the fuel channel, the valve body including an air inlet port for receiving a pneumatic signal that is related to a mass air flow of air provided to the combustion chamber, the first port of the mass air flow sensor is fluidly coupled to the fuel bypass channel and the second port of the mass air flow sensor is fluidly coupled to the air inlet port of the valve body;
• and
• an electronic controller housed by the valve body and operatively coupled to the valve actuator and the mass air flow sensor, the electronic controller configured to control the position of the valve via the valve actuator to achieve a flow of gas to the output port of the valve body that is based at least in part on the mass air flow sensed by the mass air flow sensor.