That's how you burn 'em. The only reason they became so popular is that they don't stick into the room as far as a Mama or Papa. They had to have an 8 inch flue to be able to run with the doors open. The novelty of the wide open view of the fire wore off quick when you don't get much heat out of them , and they burn like crazy that way. Square inch size of fire box and square inch heating surface is the same or less than a Papa, and the 6 inch flue on that worked just fine. So many people thought, since they could stick one back in their hearth, they should buy a top vent and go straight up. I'm sure the salesmen told them they needed a rear or side flue for that installation, but the customer didn't want the stove sticking out into the room. Can't have an efficient heater and bury it into your fireplace either............... Best installation to me is in the middle of the room for better circulation, and no clearance problems. A section of pipe straight up with the damper, then adjustable elbow to pitch upwards to a hole higher up in the chimney. The horizontal run doesn't kill the draft that much, and takes advantage of all that surface area of the pipe on the way out. I built my own house with a Dura-Vent chimney support box in the center of a big kitchen, and a chimney in the center of the living room. I have an old piano mover that is a low steel frame on wheels that goes right under a piano or stove. lifts it a bit, and roll it right out. That way it's no big deal to use an antique parlor stove fall and spring, for a little heat, and the Fisher of my choice for the winter. I lean towards the Goldilocks since it's square and doesn't take up much room. It also has a double heat shield on the back that directs the heat off the back straight up. I face the back of the stove towards the fridge to keep that part of the house the coolest. It used to be an ice box, but the rest of the family couldn't deal with my Amish tendencies so she's parked in the corner in case the power goes out. Will they ever learn? I have a 1901 duplex rental that has every hole cut into the chimneys 2 feet from the ceiling. 3 stoves were used on each side of that house. During the summer, the stoves were pushed aside, and the pipes were stored in a closet in the attic. I found a treasure trove of oval-ed pipe, oval dampers and elbows made with two straight pipes cut on a 45* and welded together. That started a Griswold damper collection I should get pictures of and post. But that's another fetish altogether. They called it "Putting up the stove" for the winter. Gotta go put up the stove honey. Ah, things were different back then.