Kiln Support
Paragon HomeKiln ProductsWhere To Buy KilnsKiln SupportAbout ParagonKiln Resellers and Dealers
Search Menu


Why does the Orton cone chart have three columns?

The three columns in the Orton temperature chart each represent a different firing speed. The 27 degree F column = 27 degrees per hour of temperature rise during the last 90 - 120 minutes.

Digital kilns are programmed with cone temperatures from the 108 degree column.

The 27, 108, and 270 degrees per hour rates apply only to the last 90 - 120 minutes of firing. The earlier part of the firing can be fast or slow, and the temperatures in the columns will still apply.

The Orton chart is similar to B&W film developer charts. Processing time varies depending on developer temperature. The higher the temperature, the shorter the film processing time.

Paragon Kilns on FacebookParagon Kilns on Twitter Paragon Kilns on YouTube Paragon RSS Feed

Kilns Sold

Get The Adobe Reader


  • Home
  • Privacy Statement
  • Legal Notice
  • Paragon's Green Statement
  • Where To Buy Kilns
  • Resellers
  • About Us
  • Contact Paragon
  • News & Events
  • Support

  • Kiln Technicians
  • Kiln Support
  • Products

  • Bead Kiln
  • Glass Blower's Crucible Furnace
  • Ceramic Kilns
  • China Painting Kilns
  • Enameling Kilns
  • Industrial Furnaces
  • Glass Kilns
  • Lamp Working Kilns
  • Pottery/Ceramic and Glass
  • Pottery Kilns
  • Silver Clay Kilns
  • Wax Burnout Furnaces
  • Heat Treating Furnaces
  • Knife Making Furnaces
  • Custom Furnaces
  • Discontinued Models
  • “Custom and standard Kilns and Industrial Furnaces for ceramics, pottery, heat treating, enameling,
    dentistry, laboratory, and glass fusing.
    Better Designed Kilns from Paragon Industries!"