How come the fire from the stove go back down into the gas tank/gas pipes?

Question

How come the fire from the stove go back down into the gas tank/gas pipes?

In: 2

Answer 1

I assume you mean why *doesn’t* the fire go back down the gas pipes (because it definitely doesn’t).

There’s no oxygen in the gas pipes. The fire can only exist where there’s both gas and oxygen. The gas mixes with the oxygen in the burner after it exits the pipe. The pressure in the gas line is higher than air pressure, so the air doesn’t go into the gas line.

Without oxygen, there’s no fire, so nothing happens inside the line.