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Kilns and Firing Accessories
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Orton Self-Supporting Cones
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Item #: 32920
$10.18
SAVE 17% off List!
No cone holders needed. Use for visual firings, to test kiln uniformity, and to check shut-off devices. Box of 25.
$10.18
SAVE 17% off List!
+ 11 Options
Orton Small Pyrometric Cones
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Item #: 32921
$11.82
Unlike a pyrometer that tells you only the atmospheric temperature in your kiln, one pyrometric cone in your kiln sitter will shut off the power when ...
$11.82
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Orton Pyrometric Mini Bars
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Item #: 32919
$12.92
SAVE up to 10% off List!
The uniform shape of these bars makes consistent placement easy without affecting the firing. Easy to use, just position one bar flat side down in you...
$12.92
SAVE up to 10% off List!
Pyrometric Cones
Pyrometric cones measure heatwork in a kiln. Made from the same ceramic materials as the pottery pieces being fired, they respond to firing in the same way clays and glazes do. Cones are made for a range of heatwork measurements spanning cone 022 to cone 12, and four firing ranges — ultra-low fire, low-fire, mid-fire, and high-fire. To choose the correct pyrometric cones for your purposes, consider the cone numbering system, which has a zero in the center. The cones farthest left of zero are for lower heatwork than those closer to zero. For example, cone 06 is much cooler than cone 6. Shop Blick for pyrometic cones and pyrometic bars for use in kilns and kiln sitters.