Product Overview
The Paragon Caldera X Collar (S0743-3) is a durable expansion ring designed to increase the interior height of your Paragon Caldera X kiln, making it ideal for glass fusing, slumping, ceramics, metal clay, and vitrigraph applications. This collar allows you to accommodate taller pieces or specialized firing setups, such as crucibles for stringer and cane pulls. Crafted from high-temperature insulating firebrick, it offers excellent thermal stability and integrates seamlessly with your Caldera X kiln body and lid. Perfect for artists and studios looking to expand firing capabilities with greater versatility and efficiency.ragon Caldera-X Blank Extension Collar
The Caldera-X collar is a kiln section that stacks onto the Caldera or Caldera-S kiln, adding 4 ½” of height. The Caldera-X has no heating elements. It is designed to add extra space for low-fire projects such as glass slumping. The Caldera and Caldera-S, even with a blank collar, still fire to 2350F. The Collar is made of 2 ½” hand-selected insulating refractory firebricks.
To strengthen the firing chamber, the firebrick corners are fitted together with L-shaped notches. This type of joint lasts longer than the butted joint and the "picture frame" mitered joint found on competitive brands. Rugged construction makes this collar a workhorse. The insulating firebricks, wrapped in heavy-gauge stainless steel, soak up heat for slow, efficient cooling. For easy maintenance, the stainless steel case includes case tighteners.
