What is a potential consequence of insufficient air in an oil furnace?

Insufficient air in an oil furnace can lead to higher carbon monoxide production. When there is not enough air mixed with the oil fuel during combustion, the combustion process becomes incomplete. This incomplete combustion results in the generation of carbon monoxide, a colorless, odorless gas that can be highly dangerous if it accumulates in living spaces.

Carbon monoxide is produced when fuel does not burn completely, which occurs when there is inadequate oxygen available for the combustion reaction. As a result, monitoring and ensuring proper airflow is essential for both safety and efficiency in oil furnaces. Preventive measures, such as regular maintenance checks on burners and ensuring that ventilation systems are functioning properly, are crucial to minimize the risk of carbon monoxide buildup.