[Terrapreta] Explanatory photos

[MFH]

See: http://terrapreta.bioenergylists.org/henderson062608

 

First is from the front of the kiln just after the fire was lit and before
bricks were added across the front. The drum lid is held in place with an
over-centre clamp. The side and rear bricks have been moved in to touch the
drum to improve insulation.

 

Second is through a hole in the front brickwork, shortly after the gas
started to flow. There are two fire layers - at the base of the fireplace,
and an upper fire just under the drum. This is the gas exiting from the
holes in the base of the drum, igniting, and then curling upwards.

 

M

 

 

 

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