It's supposed to be below 0 here the next few nights so I picked up a few bags of Cubex to help deal with the cold. Afterward I got thinking about it and began to wonder if I wasted my money. Because Harmans run based on temp and not to a fixed feed rate, the stove will be putting out the same temp no matter if I'm burning Cubex or Greene Team of Pennington. The only savings I'll see is less pellet usage and probably less ash with the Cubex. So in the log run, it probably would have been more cost effective to run a decent pellet rather than a super premium pellet.