How did a glass chimney and added air make an oil lamp flame brighter?

The Argand burner, patented in 1784, revolutionized oil lamps by utilizing a cylindrical wick positioned between two concentric metal tubes. This design allowed air to flow through the center and around the outside of the wick, supporting combustion on both the inner and outer surfaces of the flame.12

The addition of a glass chimney was critical to this process because it increased the draft, or the upward current of air, around the flame. This enhanced airflow ensured more complete combustion of the oil, which resulted in a significantly brighter, whiter, and cleaner flame compared to earlier lamp designs. By steadying the flame and providing a consistent supply of oxygen, the chimney allowed the lamp to produce substantially more light while minimizing smoke.123