From House & Garden’s Complete Guide to Interior Decoration, 1970A hearth refers to the floor of a fireplace or to the area immediately adjacent – usually made of stone or brick and often extending out into the room. Historically the hearth provided the main source of heat for the home, as well as being the place where most of the cooking was done. Naturally, the fireplace evolved into the central gathering place for the family and the hearth became synonymous with home – especially d...