A cooking oven pilot light is the basic cornerstone because this flame continuously supplies the gas to heat the oven. Waits and rests at the back or the bottom burner, so that it needs to be lit up manifold (by turning a valve and using a lighter). This small flame is necessary for the oven to work properly because it keeps the oven heated constantly so the heat keeps cooking and bak... https://www.partsfe.co.uk/oven-parts/oven-pilot-light