However, it is not a big problem because you can always buy special cleaners for fireplace screens and glass doors. More often the construction of furnaces have special channels that send air flow along the inner surface of the door, and don't allow the soot particles settle on the glass. If your fireplace has no doors at all, you can use a variety of nets and shutters that can be installed directly in front of the firebox. They help to manage the air flow and thus regulate the heat level.
In designing contemporary fireplaces, the project commences with a basic design concept. Then a simple measured image is drawn up, which then is transformed into a life-size representation that permits a more detailed look at the moldings and the carving details so that more minute dimensions can be determined. After all of this information is ascertained, the details are sent to a stone mill, and the materials are ordered (10-ton blocks are commonly ordered as a starter piece, but each project will require something different).