So my situation leads me to purchasing a new pellet stove and i have some questions for any one willing to lend there advise. I purchased a house that had a wood stove that was removed. I figured the chimney liner was cracked and they removed it because of that. No big deal.... I new I would have to reline the chimney with Stainless what ever I purchased. So I'm looking into either and Enviro Empress, Quadra fire Castile or Mt Vernon, Or Lopi Leyden. Leaning at this point to the Enviro or Mt Vernon. So im looking for input on these units (I have looked at the stove reviews). My questions are; 1. Can I run an OAK up my 20ft chimney and have the intake and exhaust that high together? 2. Has anyone run an OAK up a chimney? 3. How good are these units? Thanks for any input.