Can anyone explain why two (or more) splits on a great bed of coals burn better than just one? I'm thinking air circulation, but really don't know. I'm often disappointed after tossing in one split to find it doesn't burn well while my bed of coals slowly goes cold. Within minutes of tossing in the second split, I have a roaring fire and a glowing bed, and it maintains it's intensity even when I damper down below what it was at with the single split. I'm burning in a small stove, Jotul F100, and have noticed this with both seasoned, and not-so-seasoned wood.