Page "Raku ware" Paragraph 16

The type and the size of kilns that are used in raku are crucial in the outcome.

One aspect that can affect the results is the use of electric versus gas kilns.

Electric kilns allow easy temperature control.

Gas kilns, which comprise brick or ceramic fibers, can be used in either oxidation or reduction firing and use propane or natural gas.

Gas kilns also heat more quickly than electric kilns, but it is more difficult to maintain temperature control.

There is a note-worthy difference when using an updrift kiln rather than a downdrift kiln.

An updrift kiln has shelves that trap heat.

This effect creates uneven temperatures throughout the kiln.

Conversely, a downdrift kiln pulls air down a separate stack on the side and allows a more even temperature throughout and allows the work to be layered on shelves.