What’s In Flue Gas?

The term “flue gas” is used to describe the emissions that are generated during the combustion process. The composition of flue gases varies according to the type of fuel that’s being burned, but typically they will contain one or more of the following elements and compounds: • Carbon dioxide: Carbon dioxide is a colorless and odorless gas that’s absorbed by plants as part of the process of photosynthesis. • Nitrogen: Nitrogen is a gas that’s colorless, odorless and essentially nonreactive. It’s the most common gas in the earth’s atmosphere. • Sulfur: Sulfur is an element that shares many properties in common with oxygen. In gaseous form, it has a distinctive, noxious odor. • Water vapor: Water vapor is the gaseous form of the common water compound. • Carbon monoxide: Carbon monoxide is a colorless, odorless gas that’s formed as a result of the incomplete combustion of carbon. Carbon monoxide binds to oxygen sites within your body, which makes it highly toxic. Every year, between 20,000 and 30,000 Americans are sickened or killed by carbon monoxide exposure. Regular furnace and boiler inspections have the potential to reduce the number of carbon monoxide exposures.