Gas fireplaces are heating appliances that use natural gas or propane to produce flames. They provide warmth and ambiance without the need for traditional wood logs. These fireplaces can be vented or ventless, allowing for flexible installation options in homes. Many gas fireplaces come with features like adjustable flame height and remote controls for convenience. They are often more efficient than wood-burning fireplaces, producing less smoke and requiring less maintenance. Additionally, gas fireplaces can be designed to fit various styles, making them a popular choice for modern homes.