The Kiln Room

Three different annealing temperatures get quoted for fused glass, and all three are right — for different glass. Here is why, with...

Clay wants heat from the sides. Glass wants heat from above. That one difference drives element placement, maximum temperature, lid design and...

The complete Orton self-supporting cone chart, cone 022 through cone 12, with all three published heating rates in Fahrenheit and Celsius. Plus...

Knife ovens come in four layouts, and the layout matters more than the brand. Chamber depth versus blade length, why a Paragon...

We do not publish a school discount percentage, and this explains why. How educational pricing, purchase orders, quotes before funding and tax...

A kiln arrives on a pallet, on a truck with a liftgate, and the driver leaves it at the curb. Here is...

Kiln fumes contain carbon monoxide, sulfur oxides, hydrogen fluoride and metal vapors — and the same fumes corrode your elements from the...

What actually decides a school kiln purchase: the circuit your room can supply, the loading height your staff can sustain, and the...

Austenitizing temperature, soak time, quench and temper for twelve common knife steels, taken from mill and supplier datasheets, then matched against the...

What breaker, wire gauge and outlet does your kiln actually need? Published electrical specs for Olympic, Evenheat, Jen-Ken, HotShot, Cress and Paragon,...

A kiln does not come with shelves, and that is the most common reason a new kiln sits cold for an extra...

We pulled manufacturer spec sheets for matched Olympic pairs — same chamber, one top-loading, one front-loading — and put our current prices...