After a few weeks of heating with this old fisher stove we are going to swap it out for our newer (15-18yr old) hitzer stove. Yesterday's 50mph wind reaffirmed why we switched out initially. With no internal baffle or shelf this old stove is not efficient enough to heat the space we require. The hitzer can heat up to 2500sq ft and has an automatic magnet damper to set the side wall of the stove to a certain temperature. The newer stove also has an internal smoke shelf to devert flame and burn gases off plus a blower. This old stove is a straight pipe with just a pipe damper......last night I couldn't get this stove hot hot safely with the heat being sucked straight out the chimney with only a pipe damper to slow it down. I tried for nostalgia sake and will still hold on to this stove but it won't be out full time burner.