The "stackable" Caldera Kiln from Paragon can be purchased with optional accessory collars that accomplish a wide variety of artistic outcomes.
CALDERA BLANK COLLAR - Adds 4.5" of interior height of a Caldera Kiln without losing any temperature capacity. Maximum temperature of the kiln remains 2350F.
CALDERA BEAD ANNEALING COLLAR -
The Caldera Bead Annealing Collar has a 7 ½” x 2” door on the side for annealing glass beads. The collar includes a brushed stainless steel mandrel holder. Insert the mandrels into the kiln. The bead door stays partially open while the glass anneals. The kiln ships with a rare earth magnet to hold the bead door open.
The Bead Annealing collar adds 4 1/2 of height to the main kiln. The collar has no heating elements. The Collar is made of 2 ½” thick hand-selected insulating refractory firebricks. The insulating firebricks, wrapped in heavy-gauge stainless steel, soak up heat for slow, efficient cooling.
The Bead Collar drops the maximum temperature of the Caldera unit to 2000F.
CALDERA ENAMLING COLLAR
The Caldera Enameling collar has a 7 ½” x 4” copper enameling door on the side. Now you can explore the exciting art of copper enameling without having to buy a front-loading enameling kiln. The door is large enough for small enameling pieces such as pendants. The kiln ships with a rare earth magnet to hold the enameling door open, and a stainless steel bead mandrel holder. The mandrel holder attaches to the front of the kiln.
The Enameling Collar Drops the maximum temperature of the kiln to 1500F.