i think my glass is getting too dirty too quick. It comes clean very easy but is almost black within a couple of hours so bad that you cant see the flame thru the glass. The damper is about a half of an inch out and it is burning on low heat and low fan. I am using about a bag and a half a day. I am really happy with the stove other than this problem. I am hesitant on calling the installers because there was 2 guys doing the install and both had extremely different ideas on how to run it. Thanks, Denny