PE summit and 20' of 6" liner installed. Doing break in fires and am getting smoke spillage into the house when I open the door. I have the air set to high at all times and I open the door slowly, an inch or two every 15-20 seconds. I have good draft and wood is good. Outside temps are about 45 degrees. Stove seems to be drafting fine except when I open the door. Stove is burning great, just cant get the door open to add more wood. There is still a few small flames on one log but the rest of the load is coals. Any suggestions are appreciated.