The Marquis Atrium gas fireplace comes standard with a Millivolt or IPI valve system that operates even in the event of a power failure, a safety screen and a full-vision package. With its three glass sides, theAtrium lets you admire the spectacle of a captivating fireplace from several angles. Ideal for dividing a living space and creating a warm ambience. Optional extras: porcelain liner; glass platform with choice of contemporary rock, driftwood, decorative rock and glass ember; driftwood log set; lighting for use with glass platform and, finally, a thermostat. All you need is your imagination to personalize theAtrium.