Paragon Industries

2011 South Town East Blvd.
Mesquite, Texas 75149-1122

Product: Caldera XL-KS, Discontinued Kiln, Model/SKU: S1223-1, Price: $0.00

Caldera XL-KS, Discontinued

Decals    Dolls    Glaze Testing    Porcelain and Stoneware   


  • Feature: frequency of use does not affect warranty
  • Feature: Optional color at no extra charge
  • Paragon Caldera XL-KS

    Fire porcelain, stoneware, china, ceramics, and decals in Paragon’s Caldera XL-KS. Test glazes and glaze application ideas before running production quantities in a large studio kiln.

    You will never outgrow a small kiln. If you eventually buy a larger kiln, continue to use the Caldera XL-KS for testing or small projects. Carry it with you to seminars or on vacation; hand lifts on the sides aid in moving the kiln.

    The Caldera XL-KS in the Classroom

    A Caldera XL-KS is a nice addition to school programs. A test kiln is relatively inexpensive. With the Caldera XL-KS, students can make gifts in time for a birthday or holiday instead of waiting until the school’s large kiln is fired. A test kiln creates enthusiasm for a clay program. Students can test glazes while they feel the momentum instead of waiting to fire them in the large kiln.

    New teachers inherit bags of unlabeled clay in their classrooms. Many loads of clay have been ruined because they were fired to the wrong temperature. With a Caldera XL-KS kiln, you can easily test unlabeled clay. Teach your students to fire this little kiln as part of your clay program.

    The Infinite Control Switch

    The Caldera XL-KS operates without electronics or timers. It uses a reliable infinite control switch to adjust the heating rate. This switch has been proven for many years in Paragon kilns.

    The infinite control switch contains a bi-metallic timer that cycles on and off. The higher the switch setting, the longer the heating elements stay on during each cycle. When the switch is turned to High, the heating elements stay on continuously.

    The Orton Auto-Cone Shutoff Device

    The Caldera XL-KS is equipped with the Orton Kiln Sitter Auto-Cone, a cone-activated automatic shutoff device. The Auto-Cone is dependable and accurate when loaded and fired properly.

    A small pyrometric cone placed in the Auto-Cone bends to maturity and turns off the kiln. (A pyrometric cone is a small pyramid of clay that bends when the ware has received the proper amount of heat work. Cones and ceramic materials are rated by cone number.)

    Note: Please monitor the kiln during firing and check it near the expected shutoff time. Do not completely depend on any shutoff device, mechanical or electronic.

    Built to Last

    The firebrick corners of the Caldera XL-KS are fitted together with L-shaped notches for extra strength. This type of joint lasts longer than the butted joint and the "picture frame" mitered joint found on competitive brands.

    The inner and outer lid surfaces and the top rim of sidewall firebricks are hardened and sealed with a refractory coating that protects the ware from dust. The firing chamber, including the lid and bottom, is made of 3” thick firebricks, 20% thicker than standard 2 1/2” bricks. A heavy steel base supports the brick bottom. No extra stand is needed.

    We make the heating elements from the finest high-temperature wire available. Paragon uses heat-dissipating barrel-shaped element connectors refined and proven over many years in our kilns. The stainless steel case and lid band include case tighteners for easy maintenance.

    Water-Base Paint

    The Caldera XL-KS control box is painted with a durable high temperature, water-base finish. We use water-base paint because of the low emissions during spraying. This creates a safer working environment for our employees and cuts down on pollution.

    UPS Shipping

    The Caldera XL-KS can ship by UPS. Enjoy a lower shipping cost and faster service. Specially designed cartons and foam padding assure that the kiln will arrive safely.

    Creative Satisfaction

    The heat of the kiln offers wonderful surprises. Glazes undergo a complete transformation in the kiln. Opening a kiln to view your masterpieces is a joy you will never outgrow. Get your family involved and create priceless memories using your kiln.

    The Furniture Kit

    The furniture kit consists of carefully selected fireclay shelves and posts for the Caldera XL or Caldera XL-KS. When estimating the price of the kiln, include the cost of furniture. The furniture allows you to stack multiple layers of ware. Without it, you could fire only the ware that would fit on the kiln bottom.

    Made in the USA

    The Caldera XL-KS is proudly made in Mesquite, Texas by skilled workers. Not only that, but phone calls during business hours are answered by a live person at the Mesquite factory. We are open from 7 a.m. to 5:30 p.m. Central Standard Time Monday through Thursday. Our expanded hours allow us to serve customers in different time zones. Call us—we would enjoy hearing from you. Our customer service representatives will be glad to help you after the sale, even long after the kiln is out of warranty, and at no charge.


    Max. Temperature










    Breaker Size


    Circuit Wire Size

    12 gauge





    IMPORTANT: Some areas such as Canada and Europe require a lid or door safety switch on kilns.

    Control Type

    Infinite Switch with Kiln Sitter





    Kiln Type

    Top Loading Square



    Understanding Chamber Measurements

    Chamber Volume

    0.29 CU.FT.
    8.21 litres

    Chamber Length

    7.50 IN
    191 mm

    Chamber Width

    7.50 IN
    191 mm

    Chamber Depth

    9.00 IN
    229 mm

    The Outer Size of the Kiln and the Shipping Size: Width = Left to Right; Depth = Front to Back; Height = Top to Bottom

    Outer Size

    17.00W x 20.00D x 17.50H Inches
    432W x 508D x 445H mm

    Ship Size

    27.50W x 20.50D x 24.00H Inches
    699W x 521D x 610H mm

    Ship Weight

    75.00 Lbs.
    34.02 Kg.

    Ship Method & Notations

    This Kiln Ships Via UPS/FedEx

    Part Number

    S1223-1   * Base Model



    Disclaimer: The specifications above assume that the kiln will be plugged into a dedicated circuit. Local electric codes supersede our recommendations.

    The pricing and electrical specifications for the above products reflect their design for use in the United States. The International versions of most models will have variations in electrical specifications and price due to consumer safety requirements or electrical regulations.


  • Discontinued Models
  • Other Phases and Voltages

    Part Number








    Legend: * = Base Model

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