Hi everybody, I was hoping to get some ideas from seasoned pros about disappointing performance from our PE Summit on our 2nd season. We installed a brand new PE Summit INSERT and used it last season. I spent quite a bit of time on here (THANKS AGAIN FOR ALL THE INFO AND SUPPORT) before I chose the Summit. I installed it myself using a fully insulated SS flexible liner in the existing chimney. The lenght of the liner is about 13". Its a 1 story ranch and the chimney is in the center of the house, not an outside wall. Ichose a liner for improved draft and safety. I also installed a complete heat shield to reflect the heat from going up the open area of the chimney. The house is about 1900 sq ft all on 1 level and fairly open. Last year I put about 2 cord of wood through it and about 3 tons of Bio Bricks. I cleaned the chimney back in September of this year and there was 1/5 of a cup of crud. I removed the baffel for cleaning. Last year, it was fairly easy to keep the house around 70 degrees when the temp was around freezing outside. Obviously much colder ouside was more work. This yeay, we are loading and loading the stove but simply cannot maintain above 66 degrees. Last year, 66 is what it would hit in the mornings when it was out of wood. This year, 62 is what the mornings are and I am stuffing the stove far more than I did last year. Now I know that wood varies greatly, however, I am seeing this with red oak that I split myself 2 years ago as well as with the Bio Bricks which are at least 99 % consistant IMHO. Last year, the most I ever loaded with Bio Bricks was 16 of the 2lb bricks and even that could be a bit scary if you let too much of them get really going. It was easy to get to 700 degrees, even dampered way down. This season, I have loaded up to 20 of these bricks and let them get going and I can barely hit 600 degrees. I am going through at least 30% more of my fuels this year and its still not enough for comfort. Does anyone have any ideas or suggestions for my to do at this point?