The 4 Flame Colors, What They Mean And When To Seek Professional Help

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Usually, the flames from a gas are either blue or yellow. However this is actually a question of complete combustion vs incomplete combustion. 

LPG (propane) and natural gas (methane) flames are both blue. When you see blue flames and temperature, there has been complete combustion, however if what you see are red or yellow gas flames, it may mean incomplete combustion, wasted gas and a serious safety hazard.

Orange, red, and yellow flames signify incomplete combustion. These flames are usually caused by the incandescence of very fine soot particles that are produced in the flame.


Incomplete combustion can be dangerous, not just because it wastes gas but also because it releases carbon monoxide. If you notice orange, red or yellow flames it may be time to do some maintenance to prevent a hazard.

Aside from emitting dangerous gasses, did you know that these flame colors can also affect temperature and food quality? When your burners have an issue, cooking temperature will quickly be affected. This, in turn, causes a lower temperature that compromises cooking consistency, making your kitchen less efficient.

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