I cleaned the 16' SS chimney yesterday and noticed the caulk around the storm collar should be re-done. What type of caulk should I use? ie Plain old silicone? And, no, I don't have any pics of what came down the liner - we have our Oslo rear vented so I have to take the top of the stove off before I can reach the soot. Family issues have been a bit trying the last few days around here. Maybe I can get the stove top off tomorrow & post my 'soot results' then.