But, Peggy, pellets are wood! Pellets are compressed wood. I've seen a "pellet" smoker that the owner was quite proud that he could use straight sawdust. But...ash produced was considerable and the efficiency would not be good. Meaning you'd use a lot of sawdust or wood bits (smaller than chips) to get good results. In SW MO, finding food grade wood pellet fuel should be no problem. There's a couple of retailers in that area that carry BBQr's Delight's Heat ReSource BBQ pellets and like Rodney said, there's a plant in Springfield.