Focus on a gas burner

In a professional gas stove burner, we often do not suspect all the parts of which it is composed…

Generally, we only pay attention to the upper part, the burner cap, where the flames for cooking emerge.

However, there are very small internal elements that are there to optimise the correct functioning and ensure maximum safety!

 

Here, we take a closer look at the thermocouple, the pilot light and the ignition electrode…

 

The thermocouple

This is a safety device installed on gas hobs that are equipped with a pilot light (it is also found in gas boilers, always next to the pilot). Its function is to ensure that the pilot flame is always well lit.

Thanks to its composition of two metals of differing nature, when the thermocouple is heated by the pilot flame, an electric coil creates a current. The current then activates the opening of the gas inlet valve. As this current is generated automatically by the action of the flame on the metal, it is completely independent and the device continues to operate, even in the event of a power cut.

If the pilot flame is not lit or if it goes out, the current is blocked and the gas supply is instantly cut off. This avoids any risk of leakage.

 

 

The pilot light

As its name suggests, the pilot is there to remain on standby, always ready to light the flame! Once on the way, the pilot light will allow cooks to light and extinguish their stove as they wish, without the need for a match or a gas lighter.

But you might still be wondering… how is the pilot lit?

 

The ignition electrode

Also called the spark plug, this device makes it possible to ignite the gas mixture in the combustion chamber by creating an electric arc. In the event of a breakdown or malfunction, you can use a long match (be careful not to burn your fingers!) or a gas lighter.

 

This initial spark will awaken the pilot light and start the stove, which will then be able to burn perfectly!