Question: how do inshot burners work?
Answer: The fuel comes in through a valve and rushes through an orifice which siphons in fresh air around venturi openings at the head of the burner. This is called an 'inshot' burner. The gas and the fresh air mix inside the burner and, as they exit the end, are ignited by a Glow plug or H.S.I. (Hot Surface Igniter).