I have been lurking on this site for about a year now and finally decided to register. There is a wealth of information and it has been very helpful. I thought I was all set to go to my local hearth and home store until I realized one flaw with my fireplace/room set up. If you are looking at my exisitng fireplace I have about 6 feet to the right sidewall but to the left I have bookshelves. The distance from the centerline of my fireplace to the edge of the bookshelf is about 36"-40". If I put in an insert (Jotul 550), is that bookshelf/sidewall distance going to be an issue?