Still another modern model you can find has a futuristic and visionary design with a spherical shape. From its square fascia to the pivoting base, this fireplace displays its versatile style and functionality. Its materials are a mix of fiberglass, tempered glass windscreen and vent free stainless steel burner. You can use it for indoor and outdoor. It can be customized to any other tones like black or white and other combinations. This model is also fuelled by denatured, eco-friendly and renewable energy bio-ethanol.
Many furnaces are also equipped with glass doors that are especially necessary when the fireplace is warming up and can not deal with smoke and thus lets the bitter smell in the room. The glass cover helps to prevent it. The doors can be swinging or lifting. By the way, furnaces with a fireproof door are safer than open grates, and allow you to manage the flow of warm air much better and easier. The only drawback is that sometimes the heat-proof glass may be covered with soot.