Wood fired downdraft kiln was only a quick experiment I did to see what temperature can be achieved. I did not fire any objects inside the kiln, because I did not have enough wood to keep the temperature at the maximum for at least a couple of hours.
Downdraft concept for the kiln is simple but effective. As the illustrations explain, the fire box is located at the bottom of the front, whilst the kiln space is above the fire box. The heat rises and travels down into the chimney providing a consistent heat inside the kiln.
The concept appeared to work great creating an extremely high draft on a calm sunny day and achieving up to 900C inside the kiln space.
Hi there this looks cool.. what type of brick did you use and how much did all of this cost?
I got these bricks from http://kilnlinings.co.uk/firebricks
42GD – 230 x 114 x 76mm for 1.29GBP each. Used just under a 100 bricks to build the kiln.
The insulation blanket I had from somewhere else, but they also have it on kilnlinings website.
The pyrometer cost me only around 8-10GBP from ebay.
Hope this helps!
Thanks for the info I am going to try and build something similar
Good luck with it! This type of kiln is definitely an exciting one! 🙂