The best fire bricks, compared.
Top pick: Stove Wizard fireclay bricks, pack of 6 Best value: Stove Wizard fireclay bricks, pack of 6 – Next listing where the price buys a job the reviews describe: about £25.19 for six clay bricks, 4.8 from 48, fitted to wood stoves. Updated 22.10.2026.
A fire brick, for a UK stove or fireplace, is the lining you match to the piece you removed. Ordinary building [firebricks](/hub/fireplaces-and-stoves/firebricks) are a different product. Vermiculite board suits a firebox that already uses it. Dense fireclay suits a hot chamber, such as a pizza oven. A shaped set can shrink a 16 inch open grate. Match the material, the thickness and a measured size. The highest degree figure on the title is a seller’s claim, not a flue temperature and not a mark. A fire brick is a heat-resistant lining, not an appliance and not a bag of ceramic coals. Dense fireclay stores more heat and takes knocks, which is why the clay packs name pizza ovens, barbecues and fire pits. Says dense fireclay and vermiculite are not substitutes, and the says its board is not clay. Swapping them changes how the stove moves heat. That trade-off is set out in [vermiculite or fireclay](/hub/fireplaces-and-stoves/fire-brick/sub/fire-brick-vermiculite-vs-fireclay).
A fire brick, for a UK stove or fireplace, is the lining you match to the piece you removed. Ordinary building firebricks are a different product.
26 products checked · 64 hrs invested · +18,400 readers
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Personal buying guide
Question 1 of 2
What are you replacing?
The Stove Wizard six-pack is dense fire clay, a different material from the vermiculite boards: six bricks at £25.19, 230 x 114 x 25 mm, a title temperature of 1300C, and a pack weight of 9 kg. It scores 4.8 from 48 ratings, the highest star line in the set. The listing names high-temperature lining and repair for pizza ovens, barbecues and fire pits. Reviewers also report fitting wood stoves, an open fireplace and a small brazing hearth, and one buyer cut bricks for a log burner. The bullets do not promise that the clay cuts like a board. In this comparison it is the best value when the piece you removed is heavy clay of this thickness, because £25.19 buys six bricks that reviewers have put in stoves. Leave it if the old liner is a light vermiculite board.
Pros
Cons
Best for: Replacing heavy fire-clay of about 25 mm, or lining a pizza oven, barbecue or fire pit, when you want more stove reviews than the twelve-pack.
Less suitable: A vermiculite firebox, a single small patch, or a buyer who wanted the maker’s shaped baffle.
Specifications
Common questions
Are these vermiculite?
No. The title says fire clay, the material field says alumina clay, and the pack weighs 9 kg for six bricks.
What temperature is stated?
The title and the bullets say 1300C.
What jobs does the listing name?
High-temperature lining and repair, including pizza ovens, barbecues and fire pits. Reviewers also report wood stoves, an open fireplace and a small brazing hearth.
The hongyong pack is ten vermiculite bricks at £28.00, each listed as 230 x 114 x 25 mm and rated 1100c on the bullets, with a pack weight of 4.92 kg. It scores 4.7 from 439 ratings, the largest review count among the stove liners here, which is why it is the top pick in this comparison. Several UK reviews name a Villager wood burner, including a Villager A, and say five or eight bricks filled the stove with spares left from the ten. The title says vermiculite and the material field says Ceramic, and the listing does not explain the clash. The bullets do not say the bricks can be cut, though reviewers report sawing them. Several reviews also say bricks arrived broken. It suits a stove that already uses several plain 230 x 114 x 25 mm vermiculite panels, and it is the wrong pack if the old liner is dense clay or a shaped baffle.
Pros
Cons
Best for: A wood burner or multi-fuel stove that takes several plain 230 x 114 x 25 mm vermiculite panels, including owners whose reviews match a Villager box.
Less suitable: A single odd size, a dense clay firebox, or a notched baffle that has to be the maker’s spare.
Specifications
Common questions
What temperature does this pack state?
The bullets say temperature rated to 1100c. They also call it a high-temperature insulation board for most wood, gas or multifuel stoves.
Why does the material field say ceramic?
The title says vermiculite. The material field says Ceramic. The listing does not explain the difference.
Do the reviews mention a particular stove?
Several UK reviews name a Villager wood burner, including a Villager A, and say five or eight bricks filled the stove with spares left from the ten.
Twelve Stove Wizard fire-clay bricks are £38.99, listed at 230 x 114 x 25 mm and 1300C, with the origin field stating China and a 30-day warranty line. The amazon.co.uk score is 4.7 from 12 ratings, and the file holds only two review texts. One buyer built a reptile basking platform and the other used the bricks in gas furnaces. Neither describes a wood stove or a pizza oven, which are the jobs the bullets name. The page asks whether the bricks are safe with food and the captured bullets do not answer. About £3.25 a brick is the lowest unit price in the set, and that arithmetic is a weak reason to reline a stove from a sample of two off-topic reviews. Order it when you are lining a large clay chamber and you can accept the thin evidence.
Pros
Cons
Best for: A large clay lining, such as a pizza oven or fire pit, if you already know this brick matches the chamber and you can accept twelve ratings.
Less suitable: A wood-burner reline, where the review texts do not show that use, or anyone who needs a food-contact answer from the listing.
Specifications
Common questions
How many bricks are in the box?
Twelve. The included-components line says 12 BBQ clay bricks. The size is 230 x 114 x 25 mm.
Does the page say they are safe with food?
A prompt on the page asks if they are safe for food. The captured bullets do not answer it.
What do the two reviews describe?
One buyer built a reptile basking platform. The other used them as replacements in gas furnaces. Neither describes a wood stove or a pizza oven.
The Inglenook 9401334 is a coal and log saver for a 16 inch open fire, at £22.99 and 5.03 kg, scoring 4.4 from 407 ratings. It is a shaped set that shrinks the grate, a different product from a vermiculite stove liner, and the spec table does not list piece sizes. Many UK reviews say the fire uses less coal or wood and throws more heat into the room. This comparison does not turn those comments into a percentage. A repeated fault is the back brick cracking in half, sometimes within weeks, and some buyers trimmed the set to fit. The material field says charcoal and wood, which does not describe a refractory, and the page does not include a grate. It belongs in a 16 inch open fireplace if you have read the split-back reports. It does not replace the side, back or baffle of a wood burner.
Pros
Cons
Best for: A 16 inch open coal or log grate, if you have read the cracked-back reviews and you only need the brick set.
Less suitable: Any wood burner, multi-fuel stove, baffle or pizza oven.
Specifications
Common questions
Does this set include a grate?
No. The page asks whether a grate is included and does not list one. The product is the brick set only.
What is it made of?
The material field says charcoal and wood, and the product type says solid fire fuel. Those lines do not describe a refractory. The listing does not give a clay or vermiculite specification.
What goes wrong in the reviews?
Many UK reviews praise lower fuel use. A repeated fault is the back brick cracking in half, sometimes within weeks, and some buyers had to trim the set to fit.
The largest Stove Wizard blank in this set is £14.98, titled 193 x 303 x 25 mm, and it weighs 1.23 kg. It scores 4.4 from 76 ratings on amazon.co.uk. The bullets say 1200°C and a special-features line says temperatures up to 1250 degrees, with no test named for either figure. One UK reviewer cut it to fit a Stockton 7 inset, and other reviews mention a log burner after cutting. The listing does not claim those models. The title and the size field say 303 mm across, while the dimension field says 30.5 cm, so a tight rebate can miss. The seller allows a ±2–3 mm cutting tolerance with woodworking tools. Start here when you need a larger vermiculite sheet than the 230 mm piece and you can live with two temperature lines.
Pros
Cons
Best for: Cutting one larger vermiculite blank for a stove that already uses board of about this thickness.
Less suitable: A buyer who needs one temperature figure, one width, or a pack of identical 230 x 114 mm panels.
Specifications
Common questions
Which temperature figure is on the page?
The bullets say 1200°C. The special-features line says temperatures up to 1250 degrees. The listing does not say which figure was tested.
Do reviewers name a stove?
One UK review says it fitted a Stockton 7 inset. Others say a log burner after cutting. The listing does not claim those models.
Is the width 303 mm?
The title and the size field say 193 x 303 x 25 mm. The dimension field says 19.3 x 30.5 x 2.5 cm. Check both before you order a tight fit.
The Stove Wizard vermiculite board at £9.99 is a single 590 g panel, with the title stating 230 x 114 x 25 mm and 1200°C. On amazon.co.uk it scores 4.2 from 20 ratings, a thin sample beside the ten-pack in this set. The size field prints 230 x 115 x 25 mm and the dimension line mixes the axes, so measure the gap before you treat either width as exact. The seller says the board can be cut with ordinary woodworking tools if you allow ±2–3 mm. One UK review says the piece arrived broken inside a box that was still intact. The page does not name a stove. It is a low-cost single patch when the old liner is already vermiculite of about this size, and a weak order if you need several panels or one agreed millimetre.
Pros
Cons
Best for: Replacing one vermiculite panel of about 230 x 114 x 25 mm, if you can measure the old piece and check the board on arrival.
Less suitable: A full firebox that needs several panels, a dense clay liner, or a shaped baffle with a notch.
Specifications
Common questions
What size is this board?
The title says 230 x 114 x 25 mm. The size field says 230 x 115 x 25 mm. The dimension line mixes the axes. Measure the piece you need before you rely on one of those figures.
Can you cut it?
The listing says it can be cut and shaped with normal woodworking tools, and to allow a cutting tolerance of ±2–3 mm.
Does the listing name a stove it fits?
No. It says wood burners and multi-fuel stoves where vermiculite board is specified. It does not name a model.
This Stove Wizard board is the longer single, at £10.99 and 740 g, with the title at 305 x 115 x 25 mm and the model line at 12 in x 4.5 in x 25 mm, both stating 1200°C. The amazon.co.uk line is 4.0 from 38 ratings. Reviewers mention a multi-fuel stove, an open fire and a French wood-burning stove, while the listing itself names no model. One buyer who ordered 12 inch bricks received four 9 inch pieces and one 12 inch piece. Check the length before you cut, because that mix is already in the file. The page says the board can be shaped with woodworking tools and a ±2–3 mm tolerance. Buy it for a longer vermiculite patch only if you can return a short board.
Pros
Cons
Best for: A longer vermiculite patch near 305 mm, if you will measure every board before you cut it.
Less suitable: Anyone who needs a guaranteed 305 mm piece on the first delivery, or a clay liner.
Specifications
Common questions
Is this the 12 inch brick?
The model number says BRICK 12 in x 4.5 in x 25 mm. The title says 305 x 115 x 25 mm. One reviewer ordered 12 inch bricks and received four 9 inch pieces and one 12 inch piece.
What temperature does the listing state?
The title and the bullets say 1200°C.
Is a stove model named?
No. Reviewers mention a multi-fuel stove, an open fire and a French wood-burning stove. The page itself does not name a model.
Seven amazon.co.uk fire-brick listings were scored on a 0–100 scale. Amazon evidence is 25 points, from the star line, scaled down when the review count is far below about 400. Spec fit is 20 points, from a size you can read, a material line that agrees with itself, and a job the bullets name. Review outcome is 35 points, from comments that describe the job, minus broken arrivals, wrong lengths and cracked backs. Value is 20 points, from the stored GBP price against a job the reviews describe. The highest score is the top pick. The best-value award is the next listing where the price buys a job the reviews describe. This is not a lab test. A temperature on a title is the seller’s claim. Prices are the amazon.co.uk shelf prices on 19 October 2026.
Amazon evidence
25%Stars on amazon.co.uk, scaled down when the review count is far below about 400. The hongyong pack (4.7 from 439) and the Inglenook set (4.4 from 407) take most of this block. Twelve ratings on the clay twelve-pack take much less, even at 4.7.
Spec fit
20%A size you can read, a material line that agrees with itself, and a job the bullets name. The six clay bricks keep most of this block. The Inglenook set loses most of it: no piece sizes, no temperature, and a material field that says charcoal and wood.
Review outcome
35%Comments that describe the job, minus broken arrivals, wrong lengths and cracked backs. Villager reports on the ten-pack and stove reports on the six clay bricks score here. Two off-topic reviews on the twelve-pack do not.
Value
20%Stored GBP price against a job the reviews describe. About £2.80 a brick on the ten-pack is the strongest unit price that still shows stove use. The six clay bricks take the best-value award because reviewers fitted wood stoves.
Match the job first, then the material already in the appliance, then the measured size and the pack. A degree figure on the title is a seller’s claim, not a flue temperature. One board suits a single patch. A stove that takes several panels is a pack. A 16 inch coal saver is a different product from a stove liner.
A fire brick on this page is a heat-resistant lining, not an appliance and not a bag of ceramic coals. Three products sit in the seven listings. Vermiculite board is the light insulating liner for a firebox that already uses it. Dense fireclay stores more heat and takes knocks, which is why the clay packs name pizza ovens, barbecues and fire pits. The Inglenook set is a shaped coal and log saver for a 16 inch open grate.
VITCAS says dense fireclay and vermiculite are not substitutes. Clay stores heat and takes knocks. Vermiculite is light and insulating. The Stove Wizard says its board is not clay. A swap changes how the stove moves heat.
1100°C, 1200°C and 1300°C on these titles are material claims. None of them is the stove’s operating temperature, a flue figure or a Defra mark. A brick is not an exempt appliance.
The set scores 4.4 from 407 reviews, and many UK texts describe less fuel and more room heat. A repeated fault is the back brick splitting, sometimes within weeks. Piece sizes are not on the spec table.
The first cut is the job, and the second is the material you removed. A stove liner, a building brick and a 16 inch coal saver are different products. Ceramic coals and gas-fire pebbles are not fire bricks. VITCAS says dense fireclay and vermiculite are not substitutes: clay stores heat and takes knocks, and vermiculite is light and insulating. The Stove Wizard says its board is not clay.
This set is almost all 25 mm. Titles use 230 × 114 mm, 305 × 115 mm or 193 × 303 mm. The £9.99 board’s title says 114 mm wide and the size field says 115 mm. The 193 × 303 mm board’s dimension field says 30.5 cm across. One 305 mm order arrived as four 9 inch pieces and one 12 inch piece. Measure the old brick, then measure what arrives, before you cut. One board, about £9.99 to £14.98, suits a single patch.
Three typical situations, each with a recommendation from this comparison.
You can measure the old panel and the stove already uses plain vermiculite. The hongyong ten-pack is the top pick at about £28: 230 × 114 × 25 mm, 4.7 from 439 reviews, with Villager reports and spares often left over. Several reviews say bricks arrived broken. It is the wrong pack if the old liner is dense clay.
The piece you removed is heavy fireclay, or you are lining a pizza oven, barbecue or fire pit. Six Stove Wizard clay bricks are the best value at about £25.19, 9 kg, 4.8 from 48 reviews, and reviewers also fitted wood stoves. Leave them if the old liner is a light vermiculite board.
You want a 16 inch open fire to use less coal or wood, and you have read the cracked-back reviews. The Inglenook set is about £22.99, with 4.4 from 407 reviews. A repeated fault is the back brick splitting within weeks. It does not replace a wood-burner liner or baffle.
The top pick is the hongyong pack of ten vermiculite bricks at about £28. Each brick is listed as 230 × 114 × 25 mm, the bullets say 1100°C, the pack weighs 4.92 kg, and amazon.co.uk shows 4.7 from 439 reviews. UK reviews name Villager stoves, often with spares left over. The title says vermiculite and the material field says Ceramic, and several reviews report bricks broken in transit. The best value is six Stove Wizard fire-clay bricks at about £25.19: 9 kg, 4.8 from 48 reviews, and a title temperature of 1300°C, when the liner you removed is heavy clay. About £9.99 for one board is cheaper for a single patch and loses that award, because 20 ratings and a broken-in-box report make the saving less reliable. A brick is not a Defra-exempt stove.
Stove Wizard fireclay bricks, pack of 6
Next listing where the price buys a job the reviews describe: about £25.19 for six clay bricks, 4.8 from 48, fitted to wood stoves.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources used for this comparison. amazon.co.uk prices, stars and review counts were taken from the listings on 19 October 2026.
This page contains affiliate links to amazon.co.uk (tag pcuk26-21). If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are from the listings. This is not a laboratory test.
