Potters and ceramists who struggle with top-loading kilns will enjoy the Iguana. The door swings open wide on a heavy ½” steel rod with sealed bearings. A spring-loaded latch presses the door tightly closed. A recessed firebrick lip around the door seals in heat. The Sentry digital controller is manufactured by Orton Ceramic Foundation. It is unsurpassed in reliability for a controller in its price range. It includes a programmed cool-down, Cone-Fire and Ramp-Hold modes, and is capable of accepting types K, R, or S thermocouples. A type-K thermocouple with an Inconel® sheath comes standard. We also recommend the optional Type-S for stoneware and porcelain. The Iguana is powered with reliable extra heavy-duty elements. This results in long element life, because the elements do not “struggle” to reach high temperatures. 10,800 watts heat the 18” wide, 18” deep, 22 ½” high interior to a full cone 10.