It's the same size as my small gas kiln and would make a great hobby kiln/test kiln. I'll be interested to compare it to the small gas kiln in terms of fuel economy. I've used fire bricks throughout (house bricks will just melt at these temperatures) laid on a bed of cinder blocks. The kiln reaches temperatures of over 1300 degrees Celsius, so it is suitable for any kind of stoneware.
Here are some photos showing four stages of the construction:
|The first layer of fire bricks, sitting on a foundation of cinder blocks|
|The second level, showing the firebox and throat into the kiln which runs under the floor.|
|Side view. This is where the diesel burner goes in, under the chimney. It goes under the floor combustion space before it gets into the kiln.|
|Side view showing kiln shelf covers in place, and chimney - I will add a stainless steel flue chimney as well, before firing, to create more draw.|
I hope to fire this one in another week or so, with some new salt glazes and subsequent oxidisation and reduction firings.
There are some plans similar to what I used here. They were originally taken from 'New Zealand Potter' magazine but unfortunately I forgot to write down a reference. Here is a plan showing a cutaway view of the kiln in action: