Four levels of flame brightness. Features a removable front frame assembly for placing optional faux glass crystals or natural stone for the flame bed. Lighted embers can be adjusted from orange, blue, purple or auto-cycle for all three colors. Infrared heating element with 6 pre-set thermostat settings. Provides up to 5386 BTU/1500W and warms up to 1,000 sq. /ft. Remote control.