Aside from keeping the warm air from escaping, the doors act to keep the hearth clean just as a fireplace screen used to do in the olden days. With the doors closed, ashes and embers don't scatter about the room, keeping the carpet or rug clean and scorch-free. The doors also have built in devices that divert air towards the bottom of the fireplace. These vents make the fire burn brighter and easier to light.
Despite the availability of other materials, stone is still a popular material to build contemporary fireplaces out of. The procedure for producing one of these modish modern stone fireplaces generally involves four stages: design, construction, delivery and installation.