Caldera Bead Collar Extender w/Door

Caldera-BC Bead Annealing Bead Collar Extends Kiln Height. Collar Provides A Bead Working Door For Inserting Beads Into The Side Of the Kiln While Keeping Heat Inside 8" x 8" x 4-1/2" Tall. The Caldera-BC collar is a kiln section that stacks onto the Caldera or Caldera-S kiln. The Caldera-BC collar has a 7-1/2" x 2" door on the side for annealing glass beads. The Caldera-BC collar adds 4-1/2" of height to the kiln. The collar has no heating elements. The Caldera and Caldera-S, even with a collar, still fire to 2000°F/1093°C. The Collar is made of 2-1/2" insulating refractory firebricks. Specifications Max. Temperature 2000F 1093C - Sides 4 - Chamber Interior: 8.00"(W) X 4.50"(D) Vol 0.16 CU.FT Chamber Exterior: 13.00"(W) x 13.00"(D) x 4.50"(H) - Ship Wt 14.00 Lbs.