My new hearth stove arrived and I have a dilema. Obviously the black stove pipe will run up my chimney about 2' past my damper. My damper is only about 4" wide so the pipe will have to be compressed into an oval shape but after it passes the damper it must go back at an angle to go towards the chimney and I cannot figure out how to do this? Someone suggested a piece of flex pipe but Home depot, Lowes and all of the fireplace stores I have visited have never heard of stove pipe that is flexible??? Any advise would be greatly appreciated.