I spoke with my insurance company about installing a new wood stove in my house that came with a bad one. They said if I just left the chimney and connected a new stove I'm fine but if we put a new chimney they wanted it to be a pro job. What constitutes a professional? I've worked construction etc and am sure I'm more than fine but obviously their looking for something. Is it an HVAC cert? Also I have a friend who's a fireman who does the investigations of arsons etc. Is there a paper or a review type thing I can have him come perform to show my job is up to code?