I just edited the title since it seems that replacing with NG is the answer. Now the question is which one? I found one made by Majestic: Marquis ClearView Premium Clean Face Fireplace it is rated at 32,500-50,000; however the FE Rating seems low: 67.6%. I have a "builder grade" gas fireplace installed in my home. The draft coming in from around it is crazy. I have had a fireplace repair person come out and look at it and he said there isn't much he could do. He sealed around the areas that go outdoors to no avail. When it is windy the pilot light goes out. This year I bought some foam insulation board to try to stop the draft. As a result of putting up with this for ten years I decided to go to the local fireplace store to look at a replacement gas fireplace. The store recommended a pellet stove over a new gas fireplace; however, most of their clientele live in older houses heated with more costly fuels (propane, oil, electric baseboard). If I go with a pellet stove, I have decided on the QF, Mt Vernon insert. My original intent was not to save money on fuel bills rather to stop the cold air from coming in the house. I am not sure if I want a solution that requires more effort than flipping a switch but the thought of potentially saving money has me intrigued. I have been reading about the new gas fireplaces and they seem to have become more advanced in the last ten years. On the same token, these pellet stoves have me very interested. The price for both options are about the same. From what I have read pellets are the least expensive fuel OUTSIDE of natural gas so I am not sure that I would see any savings. What to do, what to do??? The facts: I have two zone heating. Brand new heat pump upstairs. Main level and basement are heated with a natural gas furnance which is ten years old. Approx 3500 sq ft above ground Relatively open floor plan 13' ceiling in FR where fireplace is. Return duct is about 25' from the fireplace Last winter gas bill average was $225/mo Last winter electric bill average was $273/ mo (before new heatpump) Thoughts?????