Warwick Brickworks 5
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One of the fireboxes of an updraught kiln which is no longer in use. Firing this kiln was much harder work than firing the down-draught kilns.

Only the walls of the updraught kiln were permanent. The unfired bricks were packed leaving channels to allow the heat to circulate. Fired bricks and ash were used on top of the stack of unfired bricks. The corrugated iron roof has been added to turn the kiln into a storage shed.

Temperature distribution was judged by the amount of slump in the stacked bricks. If one area slumped more than average then firing in that area was eased off. The total shrinkage during firing depended opon the clay used, but could be as much as 30cm.

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