good evening all. i was wondering if anybody could tell me if there is any connection between how clean the glass on the door stays, and the soot build up on the inside of my liner. my chimney is over 30 ft high so its hard to take a peek down.. I'm new to burning in an insert and im pleasantly surprised at how clean the glass stays . it only seems to to cloud over with a slight haze when i turn the air all the way down.(is that normal?)