What type of flame is created due to an insufficient draft?

A floating flame is produced when there is insufficient draft in a combustion system, such as a gas appliance. This phenomenon occurs because the combustion gases are not being effectively drawn away from the burner, causing the flame to hover or appear to float above the burner surface instead of establishing a stable connection.

In a properly functioning system, the draft helps to ensure that the flame is held in place and burns uniformly. When the draft is inadequate, the flame can become unstable, which may lead to incomplete combustion and increased emissions. This condition can not only affect efficiency but also pose safety risks. Understanding the characteristics of a floating flame is crucial for diagnosing issues within gas systems and ensuring safe operation.