Here's the mfg site:
http://www.firebrandindustries.com/pages/392343/They say they are regular pellet stove pellets with some methyl alcohol incorporated into them.
You could probably get some regular stove pellets ($4-5 for 40 lbs) & add a bit of Heet gasoline additive at time of use and get the same result.
Since alcohol is the "active ingredient" and it tends to evaporate, I wonder if they have a limit to their useful life?
Sue