What is the recommended net flue gas temperature?

The recommended net flue gas temperature of 350 degrees Fahrenheit is considered optimal for efficiency and safety in heating systems using oil fuel. This temperature helps to ensure that the combustion process is efficient, allowing for maximum heat transfer and minimizing the risk of condensation within the flue system. When flue gas temperatures are too low, condensation can occur, leading to the formation of corrosive substances that can damage the flue pipes and the heating equipment itself.

Maintaining a net flue gas temperature around 350 degrees also allows for better performance of the combustion system, reducing the likelihood of producing carbon monoxide and other harmful emissions. It supports the overall effectiveness of the heating system, contributing to fuel economy and extending equipment lifespan. This temperature range is thus a critical standard in ensuring both operational longevity and safety.