Anyone here burning these pellets? I have run a few bags, and so far delighted. They are good with heat and seem to be low ash, but I am not running them around the clock to really know the ash situation. Also these are the smallest pellets in my stash, at around 1/2 inch or less. I wonder how much that helps for a cleaner hotter burn. They are Oak, from a flooring mill. They seem to compare with cubex and are $1 cheaper per bag.