Carbon monoxide is a gas produced by furnaces and other devices that burn fuel.
Any fuel that is incompletely burned produces carbon monoxide, a colorless, odorless gas.
Fuel that burns incompletely in a furnace creates carbon monoxide.
What happens when a fuel burns incompletely?
* Carbon monoxide disappears
* direct damage to the lungs
* deadly and devastating
* Carbon monoxide is created
* retaining heat
* Oxygen increases
* permineralization
* It's recycled