I am looking for something to replace my old heat n glo.  Insert is not allowed in this model.  I hope to find something that will fit without the need to modify the front of the fireplace. I can pull it out from the back wall  of course looking for something efficient that can actually heat a room. Also would be nice to find something that can use the existing chimney or just have a liner installed.  I think I will need it to heat about a 2000 sq foot area. I thought this would be an easy project but I was very wrong.