What does the term "draft" refer to in the context of oil burners?

The term "draft" in the context of oil burners refers specifically to the pressure difference that allows airflow in the combustion chamber. This pressure difference is crucial for promoting proper combustion by drawing air into the burner and expelling exhaust gases. A well-maintained draft ensures that the burner operates efficiently and safely, preventing conditions like backdrafts that can lead to incomplete combustion and the buildup of harmful emissions.

Maintaining the correct draft is essential for achieving optimal performance in oil burners. It plays a vital role in regulating the combustion process, which impacts both fuel efficiency and safety. Understanding draft is key for oil burner operators, as it directly influences how effectively an oil burner can convert fuel into energy.