How to find the right Firing Accessories AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Firing Accessories
- Kiln shelf material
- Cordierite is fine for most cone 6 work. Choose nitride-bonded silicon carbide (thinner, lighter, more resistant to sagging) for heavy or frequent cone 10 loads. Shelves that sag or crack under load can ruin a whole firing.
- Shelf fit
- Size and shape shelves (half-round, full-round, octagonal) to your kiln's interior, leaving clearance from the elements and walls. Shelves that sit too close to the walls block heat and can touch the elements.
- Kiln wash vs glass primer
- Use kiln wash on pottery shelf tops only, never on the edges or undersides. Use shelf primer or fiber paper for glass fusing. Kiln wash flaking onto lower pieces ruins glazes, and pottery kiln wash can stick to fused glass.
- Witness cones
- Use self-supporting cones or a cone pack in the cone number you are firing to, even with a digital controller. Cones measure actual heat work, while thermocouples drift over time.
- Stilts
- Use metal-tipped stilts for low-fire earthenware glazed on the foot. Do not use them in stoneware or porcelain firings. High-fire clay softens and can slump or fuse onto the stilt.
- Replacement elements and thermocouples
- Buy elements and thermocouples that match your exact kiln model, voltage and thermocouple type. The wrong element wattage or thermocouple type causes uneven firings or wrong temperature readings.
Brands that matter
- Orton: The reference brand for pyrometric cones, cone packs and kiln vents.
- Skutt: OEM elements, thermocouples and parts for Skutt kilns.
- Paragon: OEM parts for Paragon kilns.
- L&L Kilns: OEM elements, element holders and controllers for L&L kilns.
- Bartlett: Maker of the digital controllers used in many electric kilns.
- Advancer: Nitride-bonded silicon carbide shelves for high-fire work.
What to avoid
- Cracked shelves, which can fail suddenly under load.
- Generic elements without a stated wattage or kiln-model match.
- Kiln wash on shelf edges or undersides.
- Stilts in stoneware or porcelain firings.
Questions
Do I still need cones if my kiln has a digital controller?
Yes. Witness cones show actual heat work and catch thermocouple drift that the controller cannot detect.