Fired up the englander nc13 for the first time. It was 50 degrees outside and I had all windows open. Had a small fire going and I shut the door. I had the air lever open all the way and the fire was going out. The wood was seasoned. Called england stove and tech support said it may have not been cold enough out side for the chimney to get a good draft going. This is a new install with sipson dura pipe going straight up. Any sugustons?