This is my 1st bag of these pellets. So far very little ash. They don't seem to be burning very hot. The pellets are small,most around 3/4-1 inch long. they are are a dark color. I think these are hardwood too. I have heard that these pellets come hardwood/softwood mix. These look very dark to me. So far I am pleased with them. I still think I will buy the LG Granules from pelletsales.com this spring. I hear those are awesome pellets. It depends on what part of the country you are from and the availability of pellets for you.