What component in the gas manifold distributes gas to each burner?

The correct choice is the orifice, as it plays a critical role in controlling and distributing gas flow to each burner. In a gas manifold system, orifices are typically installed at each burner's connection point. They function by allowing a controlled amount of gas to flow through, ensuring each burner receives the right volume and pressure of gas needed for efficient combustion.

The orifice size can be tailored to match the specifications of the burner, affecting the gas flow rate and the flame characteristics. By regulating the flow, orifices help maintain optimal performance while also enhancing safety and efficiency within the gas distribution system in appliances like stoves and furnaces.

Other components like interlock switches, pressure regulators, and thermostats serve different functions. An interlock switch is commonly used for safety purposes, preventing the gas supply from igniting under certain conditions. A pressure regulator controls the pressure of the gas being supplied throughout the system but does not distribute the gas directly to the burners. A thermostat is involved in monitoring and controlling temperature rather than managing gas distribution specifically.