Where are the tertiary air openings located on a fixed combustion head?

The tertiary air openings on a fixed combustion head play a crucial role in enhancing combustion efficiency. They are strategically located around the outside of the retention head. This positioning allows for a secondary intake of air, which aids in the complete combustion of fuel by promoting better mixing of air and fuel.

Having tertiary air openings around the retention head helps to facilitate optimal flame stability and improved combustion characteristics, leading to reduced emissions and increased efficiency. This design helps to maintain a consistent and stable flame by allowing additional air to enter the combustion process, thus ensuring that all fuel is adequately burnt.

The other locations mentioned, such as inside the combustion chamber or at the base of the fuel line, would not provide the same benefits in terms of air intake and combustion enhancement. The location on top of the burner could potentially interfere with the main combustion process rather than support it effectively.