exactly, and also this is a good test to find out if your draft problem is with the firebox or the stack/ baffle plate gap. if you crack the door slightly the fire will have more air which will make the fire hotter, if the cook chamber temp does not go up, you have a problem after the firebox. on the other hand if it does, you more likely have undersized air inlets. also if it goes up but does not last long your firebox may be undersized.alleyrat58 wrote:If you really want to get some air in that box, crack the door. That will tell you if you need to add another inlet or not.