What is a common cause of carbon monoxide production in oil burners?

A common cause of carbon monoxide production in oil burners is linked to multiple factors, each contributing to incomplete combustion. Excessive fuel pressure can lead to a richer fuel mixture, which does not burn completely and can create carbon monoxide as a byproduct. Inadequate ventilation restricts the supply of air necessary for proper combustion, potentially allowing unburned fuel to produce carbon monoxide. Low flue gas temperature indicates that the combustion gases are not being adequately expelled, which can also result in incomplete combustion and an increase in carbon monoxide levels.

Thus, all these issues together—excessive fuel pressure, inadequate ventilation, and low flue gas temperature—can contribute to higher production of carbon monoxide in oil burners. It is crucial for safety and efficiency to ensure that oil burners are functioning within the correct parameters regarding fuel pressure, air supply, and flue gas temperatures.