Newbie here with my first question. I have been burning corn for the last 7-8 years but have decided to put in a wood stove. I just looked and the existing chimney in the house is a Heatilator Mark 700 chimney. I have searched the net but have found no real info on it. Can I plumb directly into the existing chimney? If not can I just re-line the Heatilator chimney? Thanks in advance!