Last winter I was burning Stove Chow from the HD and when I cleaned the glass it was your basic black soot, and it came off with ceramic cleaner and a paper towel. This year I'm burning Lignetics and every time I clean the glass there are these black specks on the glass. It's almost like you flicked water with your fingers on the glass and it mixed with the ash and left a black speck that got hard and sticks to the glass. I've been having to pick them off with my finger nails vs. just spraying and wiping like last year. Any ideas on what this new speckling is and how to stop it ?
-S
-S