Hello all. I am completely confused about what kind of stove or insert to get, so I really appreciate any input. We have an 1850 Colonial (two story) with a large central fireplace. The fireplace has a large opening (42" wide by 34" tall) about 20" deep at the top of the opening, 30" deep at the bottom of the opening, and a 20" deep hearth. Also, the chimney works. We are paying a fortune in gas bills in the winter and want to offset that with some efficient wood-burning. We don't expect to heat the whole house (about 2,000 sq. ft.) with the wood stove all the time, but want to keep warm at night without the furnace working non-stop. With that size opening, can I just put a free-standing wood stove in there? Or do I have to go with an insert? Which would give a better heat output? Which would be cheaper? What size stove can we get away with? We just cut down a dozen 100 ft. trees that were choked off by ivy (inherited from previous owners, that's a-whole-nother issue) so availability of wood isn't an issue. Cost is, however. Looking for something that will work, is somewhat attractive/in keeping with Colonial style, and as inexpensive as quality will allow. Any suggestions? Also: We have 10' ceilings on the first floor, which will probably factor in.