alright i have asked tons of questions and gotten great advice. i used a charcoal basket, put dryer duct from vent pipe and used a diffuser coming from the fire box and my heat was about 220 for 4 hours or so then when the shade hit (outside temp 75*) i couldn't get it to go past 150. i was dumping charcoal and had vents all the way open and nothing. any ideas?? i did notice when my wood would smoke i saw it really come out of where the door meets the bottom and also the pull out door on the side of the firebox, but my heat was fine for a while. it never would go past 220 though the whole time.