Well, here she is in action--My cast iron wood burning kiln.
Looks good, but unfortunately the kiln did not reach temperature. Not a failure though. I learned lots.
First thing and perhaps the most important for me is that if I'm stoking the fire, I'm not doing it on my knees or bending over. I'm going to add another layer of cinder block to the base of this foundation and raise it up.
Another thing is that this kiln is too tight. By that I mean it didn't have enough air or draft. First of all I need to take a piece off the back of my door. The damper works great but there is a piece of metal that restricts airflow. With the back piece removed you'll be able to see right through the four holes and right into the fire box.
Perhaps most important of all I need to figure out how to put a mouse hole into the firebox floor. I needed air hitting the ember pile during this firing.
I only fired 4 teabowls in this test run. They were placed on a round kiln shelf supported by three fire brick. This really reduced the size of my firebox. There was one inch of clearance between the tops of the tea bowls and my fiber board roof. I also used a couple firebrick as a grate system to hlod the wood up off the floor.
When I rebuild this kiln I am putting the ware chamber above the whole firebox. I am thinking about making a small fiber-lined chamber and setting that over the round portion of the firebox. I am also going to stack brick around the exterior of the cast iron firebox because it puts out way too much heat. Looking for some suggestions. Help Wanted.
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