Medieval kiln experiment
The kiln is based of kilns placed in the 13th Century from excavations of the double flue/stoke hole type.
It is constructed over a sand dome and allowed to dry, wall are constructed but no roof as various types will be tried. The finished kiln will be much smaller for portability and use, diameter in the region of 18 inches. The kiln will be constructed on firebrick base, on a steel frame, with trolley wheels.
Inner wall recipe
China clay 1 part by volume
Saw dust 1 part by volume
Water to mix to stiffness
Outer wall recipe
Ball clay 4.5 part by volume
Coal cinders or ash 4.5 part by volume
Please keep popping back as I'll update as we build it
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Bellamy, C Four medieval pottery kilns on Woodhouse farm, Winksley, near Ripon, W Riding of Yorkshire Med Arch 14 (1970)
Evison Vera Medieval Pottery from excavations St Martins (1974)
Holden, Andrew The Self Reliant Potter Black (1982)
Mayes Philip The experimental kilns at Leeds Current Archaeology (an early one I think no 6)
Singer Charles, Holmyard E.J., Hall A.R A History of Technology Vol II, Oxford University Press, (1954) The pictures have been taken from this volume.
Vidler, A Medieval Pottery & Kilns found at Rye, Sussex Archaeology 74 (1933)