"Your chimney - and the flue that lines it - may add architectural interst to your home,
but the real function is to carry dangerous fireplace, wood stove or furnace gases and
smoke safely out of your home. A chimney helps your household air stay breathable...
just as your windows and your bathroom, attic and kitchen vents do. Unlike those other
exhaust points in your home, however, fireplace and wood stove chimneys need a special
kind of care..."