Air pressure at the burner head: what it indicates and how it affects combustion

Air pressure at the burner head is a useful diagnostic parameter for actual air flow and the condition of the head.

Relationship with air flow

As the load increases, fan pressure and differential pressure at the head change.

Dirty head

Dirt or clogged passages can change the pressure characteristic and affect mixing.

Incorrect head position

It can cause different flow resistance and change the shape of the flame.

Use in maintenance

Comparing with previous measurements or manufacturer data helps in identifying deviations.