School-Master K12 School Kilns

SM23T School-Master Electric Kiln for K12 Schools

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call 800-750-8350.


Designed specifically for K-12 schools and Contemporary Studios

Five Year Warranty & Simple One-Touch™ Control

School-Master kilns are warranted for FIVE YEARS!. They are super-durable and include all of the easy-maintenance features of the Easy-Fire kilns. For simplicity, however, School-Master kilns feature the intuitive One-Touch™ kiln control that has a standard Bisque and Glaze program tuned to the needs of most K-12 programs. Temperature, heating and cooling rate, delay time and soak time can all be easily modified for the two main programs and remain set that way until deliberately changed. In addition, for more advanced users, there are four custom programs. The control is single zone and the kilns have graded elements. Because we only have two sizes we have tuned the element resistance for good performance. The School-Master kilns are limited to Cone 6 operation even though the construction of the kilns can handle higher temperatures.

Extra Images

One-Touch Simple Control
Peephole plugs are 1" in diameter and solid
Inside an SM23T-3
See how the back tilts back for easy loading

Kiln Models

Model No Cubic Ft Inside Dim (Inches) Description
SM23T School Kiln 7 23-3/8" Diam x 27" High 2-1/2" brick
SM23T-3 School Kiln 6.7 22-3/8" Diam x 27" High 3" brick
SM28T-3 School Kiln 10.2 28" Diam x 27" High 3" brick



Durability, Repairability, Better Heat Transfer. The smooth, hard surface of the inside ceramic channel allows the elements to expand and contract freely. No pins! The dense ceramic holders extend element life because they do not insulate the hot elements from the kiln interior.
Mullite protection tubes extend thermocouple life and keep kiln clean. The mullite protection tube keeps the metal oxides of the thermocouple tip from dropping off and contaminating your work.
Aluminized stands are extremely strong and corrosion resistant. The offer solid support under the kiln - unlike spot-welded angle stands that are common in the industry.
Industrial grade ceramic terminal blocks make changing elements easy.
Special brick coating hardens and seals brick for durability and cleaner operation.
Thick 8 gauge thermocouples last a long time. Special Limit of Error to ANSI MC96.1 specifications is used.
Stainless Steel clips help the lid stay secure and durable. This extra step ensures that the lid won't slip out of the stainless steel band.
Corrosion resistant materials and methods result in a long-lasting kiln.
Three case clamps per 9" high kiln section are redundant safety for your L&L kiln.


K23 firebrick combines good insulation with strength

Ease of Use

Feather-light spring hinge allows full access without a side support bar - for easy loading. Standard on all 10 and 10 sided polygonal kilns.
Four-Key Control that Redefines Simplicity • Perfect for Schools & Hobbyists
Solid large non-tapered peepholes allow a wider view into the kiln.


The combined experience at L&L Kilns in kilns, ceramics, electrical engineering and process engineering is unsurpassed. We work as a team to help you get you answers and help.
School-Master School kilns come with a special five-year limited warranty.


Remove two screws and a few plug-on wires and the panel disconnects in 5 minutes.
Sectional kiln construction makes kilns easy to move, set up and disassemble for maintenance.
The bottom can be easily reversed in case of a firing mishap.


Most L&L kilns are MET listed to UL499 standards. Listed kilns include Easy-Fire. Jupiter. DaVinci, School-Master, Liberty-Belle. Hercules & Easy-Load kilns areMET-Us Listed for US only.
Power Relays are mercury-free to comply with increasing regulation and concern about mercury in schools
All L&L Kilns come with an on-off switch


See PDF Library for International versions.