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izquierdista
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Sat Nov-03-07 04:04 PM Response to Original message |
| 1. Here's some pictures |
    Courtesy of the National Park Service http://www.terragalleria.com/parks/np.death-valley.4.html The idea is to heap the wood inside the kiln, so that you have a controlled low flow of oxygen to the fire. That way, the heat drives off the volatile compounds in the wood and leaves behind the charcoal. A corbeled dome of plain red bricks would work. You could leave gaps between the bottom courses to allow for combustion air to enter, and shovel dirt onto the gaps if you needed to lower the air flow. |
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