How to
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How to
The usual method of creating a reducing atmosphere is to close off the flue or chimney. This can be done by laying a piece of kiln shelf or kiln brick across the top of the flue/chimney, or if it is a larger chimney, by pushing in the damper (a piece of tile which can be pushed into a slot in the chimney, which is at an accessible height, reducing the air flow). Reduction firings are generally not recommended for electric kilns, although it is possible to achieve reducing effects by introducing combustible materials (e.g. twigs) into the kiln chamber through the spy hole. But the carbon monoxide tends to attack the kiln elements (electrical coils), which then deteriorate quickly.
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| Carma Spence-Pothitt |
