e23S-JH 240V 1P APM SSR FK
$ 6812.75 New Available online

e23S-JH 240V 1P APM SSR FK

$8,015.00 $6,812.75 $1,202.25

Item #: LLe23S-JH2401APSSFK

Available Options:

Voltage / Phase:

Element & Control:

Furniture Kit & Vent:

Made to Order: Will ship in 18-20 weeks

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As of 2023, ALL new L&L Kilns come standard with the Genesis Touchscreen Kiln Controller

-- Kiln Upgrades and Add-Ons --
Small Stilt Kit
Saftey Gloves
Grinding Brick
Vent Extension Kit
Vent Doubler
Vent-Sure Mounting Box

L&L Crystalline JH Series Kilns fire to Cone 12, 2400 F. The JH kilns feature special higher temperature K25 firebrick for extra high cone 12 firing (and faster cool-down), extra power for fast heat up, “Quad” element configuration for extra element area, super heavy-duty thick elements to hold up to the special rigors of crystalline firing, minimal insulation to allow for fast cool down, and Type S Platinum Thermocouples for long life. L&L Crystalline JH Series Kilns are designed specifically for firing crystalline glaze with fast heat up, fast cool down to freeze crystals and the ability to soak without prematurely aging elements. These kilns come with approximately 25% more power than a regular kiln of similar size. Includes 2-1/2” of K25 2500°F firebrick on sides and bottom with a 3” thick top. Quad element holder system with super heavy-duty elements.

The Genesis control includes a touch screen interface and WIFI connectivity added to the proven software of the DynaTrol. More programming options and memory. Free App available to monitor kiln via WiFi. Touch-screen intuitive technology for easy user interface. Easy-to-follow screen descriptions. Different user-interface levels, which can be set to match the user’s firing knowledge. Graphical display of the firing process right at the controller, this means you can graph the firing in real time and compare the program with actual results. Glass programs included. Store up to 12 custom user programs. Up to 32 segments per program. Ability to make adjustments during a firing such as add segments, add temperature, and skip segments. Built in diagnostics testing. Alarm. Error Codes. WiFi enabled for easy software updating. Included Phone App allows you to monitor kiln operation remotely.

This is a standard feature with either a DynaTrol or touch-screen Genesis control. The control separately measures temperatures in the bottom, middle, and top of the kiln and automatically adjusts the heat of three zones during the firing. Kiln temperatures are automatically equalized to within 1/2 cone or better. Zone control automatically compensates for many loading issues and element resistance changes. Additionally, L&L kilns are fundamentally uniform because the element holders radiate the heat more evenly.

The very best thermocouple for constant high fire applications is a Type S platinum thermocouple with an alumina sheath. Type S thermocouples are composed of a positive leg which is 90% platinum and 10% Rhodium, and a negative leg which is 100% platinum. Since they can be used up to 2700°F/(1480°C) they will not drift or degrade in these kilns.

The combination of 1/2” diameter element coils, the doubled surface area of the Quad element design, and superior heat transfer of L&L’s patented ceramic element holders, make this the best element system in the world today.


Shelves are high alumina cone 11 shelves. Each post kit includes six each 1/2”, 1”, 2”, 4”, 6” and 8” high square (1.5”x 1.5”) cordierite posts. All furniture kits include one pair heat-resistant gloves.

Vent-Sure downdraft vent vents fumes from kiln out of room and away from the kiln. Downdraft venting pulls air down to bottom of kiln. Improves temperature uniformity inside the kiln. Powerful 130 CFM fan motor, typically mounted on wall, allows fumes to be under vacuum in your studio. The strong fan motor helps overcome static pressure in long exhaust lines. The duct may be up to 60 feet in length, and include up to four 90° bends. 120 volts with on/off switch on cord (240 volts available). 8 foot long flexible aluminum duct. Bypass collection box mounted on kiln allows adjustment of venting. Fan motor, mounted away from the kilns, stays cool and no vibration transmitted to the kiln. Multi-Mount Bracket comes with the Vent System - allows you to mount vent motor in various positions.

Industrial Grade Solid State Relays are quiet and result in longer element life because the switching time is so fast the elements don’t expand and contract as much. The whole system includes extra large heat sinks, special fast acting fuses, cooling fan and extra safety relays.

Special sintered alloy provides the ultimate in element life. The special sintered alloy inhibits grain growth and this resistance change in the elements.

Max Firing Temp: Cone 12 (2400F)
Inside Dimensions (inches): 23.3 Diameter x 18 High
Outside Dimensions: 30W x 40D x 59H
Cubic Feet: 4.7
Amps: 47.9
Breaker Required: 60
Plug: NEMA 6-50
Shipping Weight: 335 lbs