Sheesh Tent, I feel sorta thick for not making that connection myself! Of course he bought heating pellets! Lowes has never carried cooking pellets as long as I've known them.
RWH, yes, heating pellets are MUCH cheaper than cooking pellets because there are less strict regulations governing their production than cooking pellets. Everything used to produce cooking pellets must be food grade which increases the cost to produce. So, while those heating pellets seem cheaper out of the gate, the health risks you're exposing your family and friends to from eating food exposed to whatever carcinogens that could possibly be lurking in those cheaper heating pellets are simply not worth the few bucks you saved in purchasing them. I suggest you take them back and get a refund.