Hi all. I'm new here and am looking for some advice. We want to put an insert into our fireplace to help heat our 1100 sq. ft. first floor. The house is pretty well insulated and we can actually heat this floor with the open fireplace, but it uses a lot of wood to do so. I've narrowed my choices down to the PE Vista or the Regency i1100. The plusses on the Regency are the good reviews I've read here and elsewhere, but I am a bit concerned about the narrow (6") depth of the firebox. The Vista has a 9" depth and the same 18" width as the Regency. Does anybody have any experience with either of these units? Any help will be greatly appreciated.