By the Home Kiln Hub UK — Pottery Kiln Reviews, Guides & Buying Advice Team · Updated May 2026 · Independent, reader-supported

Best Kiln Accessories & Furniture to Buy With Your Kiln UK (2026)

Your new kiln is only half the story. The accessories and consumables you choose will determine how reliably it fires, how long the elements last, and how much time you spend maintaining it rather than making pots. After several years of working with kilns and talking to UK potters who've invested in both budget and premium options, a few patterns emerge: cheap shelves warp unpredictably, the right stilts prevent costly glaze sticking disasters, and monitoring cones are genuinely non-negotiable. This guide covers the essentials that actually matter.

Kiln Shelves: The Foundation Decision

Kiln shelves take the punishment. Heat cycles, glaze drips, uneven loading—they're the first thing to fail if you get this wrong. Most UK potters using home kilns work with either alumina oxide or silicon carbide shelves. Alumina is cheaper and perfectly adequate for stoneware and earthenware; silicon carbide costs roughly double but handles thermal shock better and lasts considerably longer if you're firing regularly.

The shelf thickness you need depends on your kiln size and firing frequency. A 30-litre kiln stacked with pottery across a large shelf will bow if the shelf is too thin. Standard thickness is 16mm to 19mm for home kilns; going thinner to save money is false economy because a warped shelf ruins everything resting on it. Pre-shaped shelves for specific kiln models are more expensive than generic rectangular ones, but they fit properly and waste less space.

One practical detail: buy spares. A cracked shelf mid-firing cycle means pulling everything out, and kiln shelves take weeks to arrive from most UK suppliers. Having one backup shelf costs less than the frustration of a cancelled firing.

Stilts: Preventing Glaze Fusion Disasters

Stilts are ceramic pyramids or tripods that sit between your shelf and the pot, creating space so glaze doesn't fuse everything together. If you glaze the base of your work—which most glazes require you to—stilts are essential. The moment you skip them thinking "this glaze won't run that far," you'll glue a pot to a shelf and lose both.

Three-point stilts are standard and work well for most forms. Four-point or six-point stilts are worth considering if you're firing unusually flat or oddly shaped work. Budget brands sometimes have uneven points that rock; slightly better brands are worth the extra few pounds because uneven stilts leave visible marks on pot bases.

Stilts are consumable—they break and glaze accumulates on them. Buy them in packs of 10 or more, not singly. After 20 or 30 firings, you'll retire half of them and wish you'd bought extra.

Pyrometric Cones: Your Actual Temperature Guide

Pyrometric cones measure heat-work, not just temperature. A kiln at the right temperature for two hours and the right temperature for six hours reach different maturity levels; cones account for that. If you're relying on thermocouple readings alone, you're guessing.

Cones are cheap—typically 40p to 70p each—but potters regularly skip them to save a few quid, then underfires or overfires an entire batch. Buy cones matched to your target firing temperature. For earthenware, cone 04 or 06 is typical; for stoneware, cone 6 to 8. Cones bend at their specific temperature-and-time combination, so you set two or three cones in your kiln (one as a guide, one as your target, one as a safety margin) and watch them through a spyhole.

A cone pack from a UK supplier costs roughly £8 to £15 for ten cones; buying them individually when you've run out is more expensive and inconvenient.

Thermocouple Spares

Thermocouples measure kiln temperature and typically last 18 to 36 months depending on kiln design and firing schedule. When one fails, you lose real-time temperature data. Replacement thermocouples are £20 to £60 depending on your kiln model.

Rather than panic-order when yours dies, buy a spare when you buy the kiln or within the first year. Spares sit idle, but they're inexpensive insurance. Thermocouples are fragile—don't try to clean or repair them. When yours reads erratically or stops, swap it out.

Kiln Wash: Protecting Shelf and Element Life

Kiln wash is a ceramic coating painted onto shelves and kiln interiors to catch glaze drips and protect the refractory brick from damage. Without it, glaze sticks permanently to shelves and brick, creating cleaning nightmares and slowly degrading the kiln structure.

Standard kiln wash is a mix of alumina and clay that's mixed with water and painted on. Most potters repaint shelves every 10 to 15 firings depending on how much glaze work they're doing. A 500g pack costs £6 to £12 and lasts for multiple shelf coatings. Specialist brands (some with silica additions for better drip resistance) are available but make minimal practical difference for most home kilns.

The only genuine mistake here is skipping kiln wash entirely thinking you'll save time. You won't—you'll spend far more time scraping hardened glaze off shelves and repairing damaged brick.

Element Kits and Replacement Parts

Kiln elements degrade over time, particularly if you're firing regularly or running at high temperatures. A replacement element kit typically costs £40 to £150 depending on element count and kiln model. If your kiln is over three years old and fires regularly, having a spare element on hand makes sense.

Don't attempt replacement yourself unless your kiln documentation explicitly covers it and you're confident with electrical safety. Most potters arrange professional replacement when elements fail; the cost is roughly £80 to £150 for labour depending on how difficult your kiln is to access.

What Matters Most

Start with quality shelves, a set of spare stilts, and pyrometric cones. Kiln wash and spares—a thermocouple and one element—follow once you've settled into a regular firing pattern. The cumulative cost of these accessories is roughly 15–25% of a home kiln's price, and they directly extend kiln life and firing reliability.