Contemporary fireplaces have increased in popularity because they double as functional industrial design-oriented heaters and interior design-oriented décor. They house real living flames that can be fueled by wood, gas, or other fuels. They are great sources of heat and enjoyment, and generally raise the value of the home by at least as much as they cost. They can be viewed either as functional art pieces or artistically-designed appliances, and are the ultimate marriage of the utilitarian and the aesthetic.
Most fireplace glass doors are made of tempered glass with either ceramic or anodized aluminum frames. Glass is placed on the door so that the fire can still be appreciated even with the door closed. Most of these fireplace doors can be bought stock - meaning that most of the door that are for sale can be purchased off the rack and installed with minimal changes.