What effect does improper combustion have on an oil heating system?

Improper combustion in an oil heating system generally leads to higher carbon monoxide emissions. This occurs because inefficient burning of oil does not fully convert the fuel into heat and can result in incomplete combustion. Consequently, this creates byproducts such as carbon monoxide, a colorless, odorless gas that poses serious health risks. Ensuring proper combustion is crucial for maintaining safety and compliance with health and environmental regulations.

In contrast, increased heating efficiency, lower fuel usage, and having no effect at all do not accurately reflect the risks associated with improper combustion. Increased efficiency and lower fuel usage would suggest that fuel is being burned effectively, which is the opposite of what is happening in cases of improper combustion. Similarly, implying that there would be no effect could overlook the serious implications of higher emissions, particularly concerning safety and air quality.