It's cold outside, really cold, so I'm doing some projects in my basement some of which really need to be done in "well ventilated area" (i.e. wood staining, working with acetone, etc.). So I really want to try and make some kind of inexpensive ventilation system. Then I realized, I already have a flue from my active oil boiler, which goes to the roof (about 30 feet up). Is there any way I can utilize it (add some kind of coupling or slitter)?