Gas kiln - A large front load gas kiln for firing pottery and ceramics. A gas kiln is ideal for reduction firing up to stoneware/porcelain temperatures. This kiln is made of ceramic fibre. Image Credit: Olympic kilns http://www.Bigceramicstore.com
Kilns - History and Basic Designs - The BEEHIVE kiln was the first kiln constructed that looks like what we consider a kiln. "...notice that now the fuel and fire are below the ware, the insulation, in the form of an arch is on top, retaining the heat better."