How Do Gas Cooktops Work?
Gas Gas stoves use natural gas or propane gas. This gas flows from the main gas valve to a manifold that has burner valves for each burner on the cooktop. The burner valves regulate the amount of gas sent to each cooktop burner via a control knob out the outside of the stove. The more gas that is allowed to flow to each burner, the higher the flame will be and the more heat given, whereas less gas means a lower flame and less heat. Ignition A short, narrow tube—which, according to AP Wagner Appliances, is called a “venturi” tube—is set between the burner valve and burner to mix the gas with air for combustion. This mixture is ignited by a pilot light, spark ignitor, or piezoelectric crystal. A pilot light is a small flame that constantly burns under the center of the cooktop. The gas-and-air mixture passes through a tube to the pilot light and ignites. Flames then flow out of tube to cooktop burner. Some models have a pilot light that stays lit and waits for the burner control knob
