According to the National Association of Home Builder's "Home of the Future" study, nearly half of industry experts surveyed say a room with a centrally located indoor fireplace remains a critical part of new home construction. Whether you're renovating an existing space or contemplating creating your own home's hearth room, start with the natural focal point of the room - the fireplace. Building a hearth room has never been easier using today's prefabricated fireplace, which does not require a stone foundation, said Deidra Darsa, Hearth, Patio and Barbecue Association spokeswoman in Arlington, Va. More