What is the recommended color for a properly adjusted gas flame?

A properly adjusted gas flame is characterized by a blue color. This blue hue indicates that the gas is burning efficiently with sufficient oxygen, resulting in a complete combustion process. Complete combustion occurs when the gas combines with the right amount of air, producing a clean flame with minimal soot production.

When the flame is blue, it signifies optimal gas flow and air mixture, leading to the best heat output and reduced risk of harmful emissions.

In contrast, other colors such as orange, purple, or white typically indicate incomplete combustion, which can result from an incorrect air-to-fuel ratio or other combustion issues. An orange flame often suggests the presence of soot or fuel residues, while purple or white flames can indicate other problems or the burning of impurities. Proper flame color is crucial for both efficiency and safety in gas fittings.