I watched my husband's technique last nite and he cracks the door for a little bit, when it catches, he shuts the door, goes about his business, and the mother burns like no tomorrow. He said not to stress over every single piece of wood, that it will all burn. I think I leave the door cracked too long? I am not messing with it anymore, I work with my hands at my job and you can't inject people and start iv's with stumps.......