I did my second test burn of my new pacific energy Newcastle which is essentially a neo with iron sides. I can hear a whining sound as air is entering the stove through the door. It gets much worse when I turn the air down. I was hoping that the doors were adjusted from the factory. I have heard about the dollar bill test but I am not sure how to adjust the door to make it seal better. Are there any screws around the door that need to be adjusted. Is it normal for the air to enter the stove faster with the stove turned down. Also much soot build up on both sides of the glass.