When you turn on a gas stove, gas comes out of the front (or the burner) due to the functioning of the stove's gas supply system. Here's how it works:
Gas Supply: Gas stoves are connected to a gas supply line that delivers natural gas or propane to the stove. This gas supply is controlled by a valve located behind the stove or in a nearby wall.
Gas Control Knobs: On the front of the stove, there are gas control knobs for each burner. When you turn the knob to the "on" position, it opens the gas valve that allows gas to flow from the supply line to the burner.
Gas Tubes and Jets: Inside the stove, there are gas tubes that lead from the gas control knobs to the burner. These tubes are designed to carry the gas safely. As the gas flows through the tubes, it reaches small openings called jets on the burner.
Ignition: Once the gas reaches the jets, the stove has a built-in ignition system (usually an electric spark or a pilot light) that ignites the gas as it comes out of the jets. This creates a flame on the burner.
Flame and Heat: The ignited gas produces a flame, which heats the cookware placed on the burner, allowing you to cook your food.
The reason you see gas coming out of the front of the stove is that the gas is not yet ignited. When you turn the knob, gas starts flowing through the tubes towards the burner. However, the ignition system (spark or pilot light) is responsible for igniting the gas, turning it into a flame. Until that happens, you might see or smell the unburned gas.
It's essential to be cautious when you smell gas without the stove being lit, as this can be a safety hazard. If you smell gas and cannot light the stove, it's best to turn off the gas supply, ensure proper ventilation, and seek assistance from a qualified technician to inspect and fix any issues with the stove.