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Infinitely adjustable air inlet damper for optimum air supply during firing and reduced cooling time
This construction technique allows individual firebrick to move independently of each other during the heating and cooling cycles
Easy access 18" tall stand
ceramic fiber and instruction manual 50 Amps* 208-240 volts
and the ducting
Orton Cones: Large Cones - 9 Kiln Wash Infinitely adjustable air inlet damperORTON LARGE CONES 9 : Box of 50 Orton cones, pyrometric cones or witness cones are for accurate kiln firing. Order online from Sheffield Pottery Ceramic Supply. Orton Pyrometric Cones for Ceramic Arts Pyrometric cones measure heat work (the effect of time and temperature). Orton Pyrometric cones are slender pyramids made from about 100 carefully controlled compositions. Each cone number is unique in measuring temperature within a small temperature