I live outside Burlington Vermont. I got a ton of Vermont premium soft wood pellets primarily because 4 out of 5 people reccomended softwood pellets from the Vermont Pellet company. I was more than happy to support a local company just as I do with other Vermont products. They are my first pellets, the only problem being the glass turns black after only 2-3 hours. Turning the feed down to 2 (M55) and/or turning the combustion up to 4 or 5 did not help. Many folks have suggested I have the stove checked with a magnahelic gauge because the fuel air mixture is probably not correct. Yesterday I found a new Pellet store whose owner is familiar with Enviro stoves and my Vermont Pellets. After I told him my problem, he gave me two bags of "Ambiance" hardwood pellets by Valfei (Canadian) and said: burn these, if your glass turns black, I"ll check out you fuel/ air mixture....but I think you see a dramatically cleaner glass
! SO......after 8 plus hours, I have a very thin, hard to see light brown sheen on my glass. I am very impressed with these pellets and I guess hardwood in general. However.....I have 40 bags left of my Vermont softwood pellets and I would still rather support my local companies. For whatever reason my stoves NOW runs fine.......Is it possible that a a fuel/air mixture change could produce the same results with a softwood pellet. Confused, Bill.......PS, also the top front edge of the sliding top plus the entire front of the stove seems much hotter than before.......so more confused!

