Do you know that lyme is the same as ashtrol for a fact? Or is that just your opinion or guess? In my Classic, I experimented with using it for a couple weeks, then not using it for a couple of weeks. I could visually see less creosote build up on my firebox walls when using ashtrol. I also was told it would neturalize the acids in the ash reducing metal corrosion. I have to say, I had no corrosion in the firebox even after 7 years of use, so it must have been working. I continue to use ashtrol in my Eclassic, but don't really don't see that it reduces creosote build up in firebox, but I do continue using for its neturalization of the ash acids. My Eclassic is a big investment, ashtrol small price to pay for extra longevity of it in my mind, along with the consistant maintenance procedures listed in the owners manual. I'm into my 3rd season with my E2400 and the firebox still looks great, with no signs of corrosion.