I did find one notation in my reading that RF smokers chew threw more wood to maintain temps then offsets. How much so? I also saw a post on here resently with a photo of their fire box and it being mostly empty other then a couple of small splits and the coment about how little it took to keep temps. As I'm planing out my build I'm just wondering as I am over building on my needs. Are your FB's pack to the 9's burning or are you just using a small amount to maintain after warm up. And what size CC are you running?? Yes I realize many factors will come in to play. Just looking for a benchmark.