Weighing new vs used kiln options comes down to real inspection, not just age or price. A used Skutt kiln can be a genuine bargain, but only if you know what to check first. Elements, thermocouples, and relays all wear out at different rates. A kiln that looks fine sitting cold can still have serious problems once it’s fired.
This guide covers exactly what to check before buying used, and when new is actually the smarter choice.
New vs Used Kiln: What Actually Wears Out
Elements are the most common wear item. They lose power gradually, so a kiln can technically still run while falling short of its rated temperature. Ask the seller how many firings the elements have on them, and whether they’ve ever been replaced.
Thermocouples wear out too, though at a different rate depending on how hot the kiln typically fires. A kiln used mainly for lower-temperature glass work might never need a thermocouple change. A kiln regularly pushed to cone 10 might need one every 20 firings. As a thermocouple nears the end of its life, the kiln tends to fire a little hotter each time. The sensor is simply reading slightly off by then.
Relays fail less often but cause real problems when they do. A bad relay means part of the kiln simply stops heating. This shows up as uneven firing, or a section of elements that never glow during a test firing.
How to Actually Test a Used Kiln
Skutt’s own diagnostic method is simple and doesn’t require special tools. Fire the kiln and look through the peepholes, wearing eye protection, to see which elements are glowing. If a section isn’t glowing at all, that usually points to a bad relay or switch. If every element glows but the kiln still won’t reach temperature, the elements themselves are likely worn out.
Newer Skutt kilns with a green LED display include a built-in current sensor. This lets you read the amperage going to each section of the kiln individually. A section reading zero amps usually means a bad relay. A section reading noticeably low usually means a broken element. This is one of the most reliable tests available. It only takes a few minutes if the kiln has this feature.
Questions to Ask the Seller
Ask how old the elements, thermocouple, and relays are. A conscientious owner will actually have this written down, since Skutt kilns track firing counts through their controller.
Ask what’s typically been fired in the kiln. A kiln that’s mostly fired low-temperature glazes has had an easier life than one regularly pushed to cone 10. Ask specifically about lead glazes too. Older studio kilns sometimes have a history buyers want to know about before bringing the kiln into a home.
Check the exterior carefully. Look at the nameplate for model and voltage information. Look for rust, burn marks, or anything that looks like it’s coming loose. Plug the kiln in if at all possible before you commit, even just to confirm it powers on.
A Real Buyer’s Experience
One potter’s documented search is worth sharing here. She was specifically looking for something around the size of a KM-1027 that could reach cone 6. She ended up finding a KM-1227 that could be converted to 240V instead. That conversion actually let her reach cone 6, despite it being a different model than she originally searched for.
It still took longer than she expected to get the kiln fully up and running. Used kilns are rarely a same-day plug-and-fire situation. Budget real time for inspection and possible repairs. Also plan time for getting the electrical side sorted before you count on the kiln for actual production work.
Doing the Real Cost Math
A used kiln’s low sticker price can be misleading once you add up likely repairs. Element replacement often runs $150 to $400 depending on kiln size. That’s before paying anyone to install them, if you’re not comfortable doing it yourself. Thermocouples cost less, usually under $50. A bad relay or control board repair can run several hundred dollars more, though.
Add these possible costs to the used kiln’s purchase price before comparing it to new. A used kiln priced a few hundred dollars below new can end up costing close to the same. This happens especially fast if more than one component needs attention.
When New Is the Better Choice
Say you can’t inspect the kiln in person, or the seller can’t answer basic questions about its history. That uncertainty carries real risk. Used kilns can become expensive money pits. This is especially true once you factor in paying someone else to diagnose and repair problems you couldn’t catch yourself.
New kilns remove all of this guesswork. You get a known element and thermocouple age of zero. You also get a full manufacturer warranty, plus confidence that what you’re firing matches what’s listed on the spec sheet. Even a smaller new kiln, like the Skutt 818, comes with that same peace of mind at a lower price point than a larger used kiln might cost after repairs.
If You Do Buy Used, Buy Local
Local pickup gives you the chance to actually plug in the kiln first. You can run the diagnostic checks before handing over any money. A kiln shipped sight-unseen removes that entire safety net. Kilns are also heavy, awkward, and expensive to ship, which makes a bad remote purchase even more costly to reverse.
Studio closures, estate sales, and other potters upgrading equipment are common sources for a well-cared-for used kiln. These sellers are also more likely to know the kiln’s real maintenance record, since they used it themselves.
Skutt 1027
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