Spring 1988, a group of ten USC students joined me in building a hard brick fast fire wood burning kiln, based on Fred Olsen's design.  The kiln's stacking capacity is about 35 cubic feet.  In 1993, I built a smaller soft brick version of the kiln as my MFA thesis research.  As expected, the kiln is economical and efficient to fire.  In researching the project, Paul Soldner and Phil Cornelius wrote to me agreeing with Fred Olsen's assertion that an efficiently designed small scaled fast firing kiln fires from "dead cold to cone 11 in less than 4 hours." 

But why do it? 

As Soldner said, fast firing wood kilns are "so fast, so clean and so lean, they don't leave any aesthetic qualities...because of short firing cycle and very little ash build up." 

My thinking was that if I could fire it fast then by adjusting the fuel and air, I could fire it slowly. By raking the coals frequently, a good amount of ash is deposited on the wares and heavily fluxed wood ash glazes are achieved.

The results of the kiln encouraged me to build the larger hard-brick version. After eight exciting firings of the new kiln, I am beginning to understand its potential.

- Vicky Hansen 

 

Click here for more images of the kilns.