The fireplace glass door performs it's utilitarian functions only when you use the fireplace. Do not forget the every day function of a glass door in making your selection. 365 days a year the fireplace glass door accents the focal point of the room, the fireplace. The glass door is a piece of fireplace furniture which is the central to the interior design theme of your home. The decision as to the style and finish of glass door should bear as much importance as any other major furniture fixture purchase.