Since its original publication in 1969 by Yankee, Inc., Vrest Orton's classic book on fireplace design has gone through numerous printings and has brought about a revival of the Rumford fireplace. The basic principles that Count Rumford set forth in 1795 describe the construction of a large shallow fireplace which does not smoke and which throws out much more heat than many of today's fireplaces which send too much of the heat up the chimney. This...