Whether you are renovating or building a new home, if you want to include a fireplace without a flue built into the wall, then this Bio Blaze Bloc 23½ Inch Biofuel Burner is perfect for you. It uses bio-ethanol to power its flames so, although it burns just as brightly and as beautifully as a wood burning hearth, its flame burns clean with just minute amounts of carbon dioxide and water vapor produced. With no smoke, soot and harmful particulates produced, this burner does away the need for additional ventilation. It's also very easy and simple to use! Simply pour bio-ethanol into its reservoir using the included funnel, wipe off any spillage, and light up a fire.