This thread is regarding my cab50 stove which was installed 10/2015 and manufactured 10/2012. Everything works fine but starting this season I have been noticing some smoke smell . Once there was even a puff of smoke from the door area upon combustion. I verified the door seal with the dollar bill test and it's tight. Upon close inspection of the glass seal it looks like there is not any seal across the top and bottom. Is this an air wash feature that I have read about? Or should the glass be completely sealed. Searches did not reveal any specifics