Electric Coal Fireplace Insert - A fireplace glass door is installed on a hearth to keep the room warm longer when the flames die down. Whether a wood burning fireplace or a gas burning fireplace, warmth radiated into the area escapes through the chimney. One doesn't discover this while the fire is burning brightly, on account of the heat from the flames that radiates into the room.
However, when the fire starts to die down, the fireside becomes cold rapidly as the heat escapes through the fireplace opening. To stop this from occurring, a fireplace glass doors blocks the opening, maintaining the heated air from leaving the area.
Apart from keeping the warm air from escaping, the doors act to keep the hearth clean just as a fireplace display I did so in the olden days. Together with the doors closed, ashes and embers do not scatter about the space, keeping the carpet or rug clear and scorch -free. The doors also have created in devices that divert air to the bottom of the hearth. These vents make the fire burn brighter and more easy to mild.