I have a large fireplace and like everyone has told me, it looks great but really isn't practical for providing heat. We have been looking at different inserts, and have narrowed it down to the Jotul C550 and Regency I3100. I really like the looks of the Jotul. I also looked at the Regency I3100. Both inserts are similar, but I am at a standstill. Any help would be appreciated. Thanks.