We usually have few options when it comes to pellet brands/types in our area. Recently a store I deal with brought in some different pellets, fir, so I bought 10 bags to try. We usually get Heartland which are softwood out of Spearfish SD.. The fir were advertised as hardwood, more BTUs, less ash, etc. After burning a few bags I don't see that much difference, in fact they don't seem to burn as hot but that may just because of my expectations. What experiences have others had with different wood types?