There is an old flue (likely 90+ years old) that runs straight through the kitchen of a house we are considering buying. You can see where it starts in the unfinished basement and trace it through the house to the attic and out to the roof. How expensive would it be to remove this thing? If it is prohibitively expensive, then can we route cooking ventilation ductwork through it or would that also be insanely expensive? Somehow we would need to duct a hood in this kitchen and locating the stove on an exterior wall is out since every wall is wall to wall windows and the interior walls are necessary doors except for the four foot space that houses the fridge. There is a jagged space where this flue is. Currently the cooktop is in a too tight island with no ventilation.