Twin-Star Electric Fireplace 18WM40070 Free Standing 1400 Watt Stone Electric Space Heater 1,400 watt space heater provides supplemental heat for up to 400 Sq. Ft. with an estimated 100,000 hour LED lifespan Stacked stone mantel with decorative arch is engineered with magnesium oxide stone detailing that looks and feels like a real stone fireplace 18" traditional log set and ember bed insert with glass front with 6 brightness levels that control the amber and spectrafire brightness Spectrafire Flame Effect Technology offers a classic wood-burning fire effect or a realistic gas-burning fire effect Safety features include: Safer Plug Fire Prevention technology that continuously monitors the temperature of the plug during use to prevent electrical fire, circuit or product damages as well as an 9-hour auto shut-off timer