The Modern Flames RedStone RS-5435 built-in electric fireplace features new Hybrid-FX™ flame technology, which maximizes the flame height in an enlarged vertical viewing area. Some of the eye-catching features on the Modern Flames RedStone RS-5435 built-in electric fireplace include high-intensity RGB independently controlled up-lighting, down-lighting & flame color. Other standard features on the Modern Flames RedStone RS-5435 include 10 different unique colors to choose from, variable and thermostatically controlled heat, variable motor controls, timer, push button and remote controls. The Modern Flames RedStone RS-5435 can slide into an existing Zero Clearance wood burning fireplace or will need 10″of depth in a wall for the built-in flush mount look. The Modern Flames RedStone RS-5435 plugs into a standard outlet and includes a 5000 BTU heater. Acrylic crystal media and lighted driftwood logs are both standard media on the Modern Flames RedStone RS-5435 built-in electric fireplace. The Modern Flames RedStone RS-5435 comes with 2 trim sizes: 5/8″ and 1 5/8″. *5-YEAR WARRANTY*