Hello, we are newcomers to this site. So far, I have found it very helpful, however, I was not able to find information relating to my specific problem. We shopped around a little for a wood burning insert last season and found out that our fireplace was too narrow at the back to accept most (if not all) inserts. At least, they would not install flush, which we want. I then saw one of those home makeover shows on TV where they installed an insert and knocked out some brick in the opening to accommodate it. So, now we are thinking that we could do the same to our fireplace. The fireplace opening is wider at the front than at the back. We are thinking that knocking out a couple of inches on each side in the back will do the trick and not affect the integrity of the structure. Has anyone ever had to do something like this, or heard of anyone having to do it? Or, does anyone know of a wood burning insert for very small fireplaces that can heat around 1200 sf? Any information or advice is much appreciated. Thanks.