Updated at: 16-07-2022 - By: cnbusinessnews

A wood stove’s fire bricks need to be replaced, but you’re not sure how? Because we have your back, you don’t have to worry about it! Let us install wood stoves now, before anything happens, to alleviate our concerns even further. On the other hand, it could be a symptom or the root of an issue.

What, exactly, are the purposes of fire bricks? What if you have no notion what they’re for? As a result, they serve as an effective form of heat retention, allowing the firebox to heat up more evenly while preventing the device from overheating.

There’s little doubt that it’s helpful in preventing burns, even though it takes some time to heat up

Regardless, let’s go on to the rest of the subject. You may be able to pick up some useful terms and lessons from here on out, which could prove useful at any time. As a result, without further ado, let us continue our discussion. Keep an eye out since you never know what you’ll learn.

What are Fire Bricks?

Using refractory materials, Firebricks are constructed and designed to stand up to extreme temperatures. Artisans and cooks from all walks of life use these special bricks to line the insides of kilns, furnaces, ovens, stoves, and so forth. Due to their low thermal conductivity, firebricks offer greater energy efficiency, which makes them excellent for fireplaces and forging, as well.

How to Replace Fire Bricks in a Wood Stove | Hunker

Why Should You Use Fire Bricks?

In order to withstand intense temperatures, Firebricks are built and developed with refractory materials. Artisans and cooks from all walks of life use these special bricks to line the insides of kilns, furnaces, ovens, stoves, and so forth. Due to their low thermal conductivity, firebricks offer greater energy efficiency, which makes them excellent for fireplaces and forging, as well.

Extreme temperatures are no match for the refractory materials used in Firebricks’ construction. These particular bricks are used in kilns, furnaces, ovens, stoves, and so on by a wide range of artisans and cooks from all walks of life. Low thermal conductivity makes them ideal for fireplaces and forging because of the higher efficiency they provide in terms of heat transfer.

  • Pastries and other baked items are less prone to burn because of better heat retention.
  • Because more light is reflected back into the oven fire, food cooks more quickly as a result of this effect.
  • When it comes to pizza ovens, firebrick is a more authentic option.
  • Toxic ingredients are absent from Firebricks.

How To Replace Fire Bricks In A Wood Stove

If you’ve never done this before, you’ll need to spend some time on it because there are a lot of factors to keep in mind. The following steps can serve as a guide to help you go through it quickly and easily. Then, immediately put it to use:

Step #1. Preparation before the replacement of fire bricks

We recommend that you bring your protective gear with you before working or touching a wood burner in the event that the work area gets a little filthy. Put some newspapers around the area you’re working in to help prevent this. As a result, ashes are easier to clean up afterward.

Also, allow the ashes and the appliance to cool down for a while before moving on to the next step. You risk getting burned if you try to do your work with a heated equipment. To prevent ashes from flying into your nose or eyes, always wear a mask. It would be helpful if you always took care of it. Once you’re done, we can move on to the next step.

Step #2. Removing the insides of the stove

This is the beginning of the replacement process. First, you’ll need to remove the ashes and garbage, along with some log grate, to begin the process. To do so, you’ll need to carefully remove all of the bricks that you no longer require or that have been damaged. Then, one by one, softly stretch each one.

Slowly pulling from the bottom to the inner and outer wall’s upper portions is how to do this. Remove it carefully because it is heavy and can seriously harm or injure you even if you only take a gentle fall.

The fire bricks should be stored away from the stove and the new ones prepared. Now that you’ve finished putting the old things away, you’re ready to complete the next stage. In the meantime, let’s go on to the next step. Take a look at this guide on how to remove firebricks safely if you ask me.

Step #3. Placing new fire bricks inside your wood stove

Now that the area has been cleared, the only thing left to do is stack the fire bricks to construct a new stove wall insulator. The first step is to properly clean the area you’re working with. If it doesn’t work, use a wire brush to remove any ashes or other debris that might be lurking in the interior. Find out how to use fire bricks as a stove lining in the following article.

Use the old fire bricks as a reference to get exact measurements for your new ones. They’ll fit perfectly that way, saving you the trouble of having to cut or grind them down any further.

To ensure a proper fit, measure the distance between the object and the wall. Once everything is in place, use a hammer mallet to tap it down until it is firmly in place.

The wood stove can be heated once all the necessary precautions have been taken, but it should not be overheated because there may be imperfections on the walls or floors of the fire bricks. You should open the door and wait for the appliance to cool down a bit if that ever happens to you. Using gloves to pick up the bricks is recommended.

You may find it difficult at first, but you’ll soon get the hang of it. This is what you get when you change the fire bricks in a wood stove. You don’t have to worry about cracked fire bricks anymore when it comes to improving your home’s insulation. Learn how to arrange bricks in a wood fire to get a better grasp of the subject.

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How Often to Replace Fire Bricks?

When there is damage

If you notice that the fire bricks inside the firebox are crumbling or falling off, it’s time to replace them.

You don’t have to immediately replace a brick if it has a crack in it. There’s nothing to be concerned about as long as the firebrick is still standing in one piece.

If the crack does appear to be excessive, it is possible to have it repaired rather than having it replaced. You might also try using some fire cement to fill up that gap instead.

What to get?

The size is obviously the most critical consideration. You should always double-check the size of your existing wood burner’s firebricks before purchasing a new.

The best thing to do, though, is to follow the manufacturer’s instructions. Make sure to read any instructions that came with the stove or furnace you purchased.

This Amazon (link) option should be compatible with most stoves on the market.

How do firebricks get damaged?

It’s possible to crack a brick with the wood split you’re packing if you strike it too hard. You’ll end up with a firebrick that’s destined to fail if you keep doing this.

As far as I know, no one has ever replaced any of the fire bricks in a heating unit that has been burning wood for years and years. As a result, they take their time loading firewood.

Moisture can be absorbed by some varieties of firebrick. To put it another way, if you burn firewood that hasn’t been properly seasoned, the bricks may become brittle because of the water that is released.

Why firebricks are important

In other words, if your firebrick is defective, it will weaken the structure of your wood stove, causing the metal to break and other problems.

As a result, each of the flames is in direct touch with a piece of metal. As the heat radiates into your room, the bricks absorb most of the heat.

The Best Fire Bricks

We’ve put together this Buyer’s Guide to help you learn everything you need to know about Fire Bricks and why they’re so effective as a heating source in both residential and commercial settings. What are you waiting for? Let’s get started!

1. Rutland Products Fire Bricks


  • Withstanding temperatures up to 2,700°F.
  • • Quick and simple setup
  • Heat retention is excellent.


  • Poor shipment has been reported by some purchasers.

Customers and professionals in the building industry have relied on Rutland Products for more than a century. That their firebrick is of such high quality and ideal for use in household heating units, as well as replacing old bricks in existing ones, is no surprise.

2. Girtech Fire Bricks


  • For temperatures up to 3,050°F, it can handle
  • Is suitable for both indoor and outdoor use
  • – High tensile power


  • – Shipping might be better.

Fire bricks are among the greatest materials for use in all types of heating units, from furnaces and fireplaces to stoves and ovens, due to their high compressive strength and density, among other characteristics. Actually, this type of brick is employed in the construction of a well-known piece of equipment. Surely, we’re referring to the pizza oven here!?

3. US Stove Firebricks

  • — Small and light in weight
  • – Quick and Simple Setup
  • Heat Transfer Rate of 2,000 BTU/in2


  • – Firebricks should not be used outside.


  • — Small and light in weight
  • – Quick and Simple Setup
  • Heat Transfer Coefficient (TC): 2000

The quality and performance you’re searching for in a firebrick for your oven, kiln, wood or coal-burning stove can be found at US Stove Firebricks.

Over the past 150 years, the US Stove Company has been developing heating appliances that help keep Americans warm and self-sufficient. There’s no doubt in my mind that the firebricks offered by this company are of the highest quality.

Things to Consider When Buying Fire Bricks?

When it comes to wood stove fire bricks, there are a few things to keep in mind. As an illustration:

Hard and Soft

Either fire bricks are soft or firm.

It is ideal for chimneys, huge kilns, fireboxes, and burner ports made of hard brick.

Soft bricks are made of refractory components that contain flammable ingredients but are lighter in weight. They are commonly used as liners to resist temperatures between 2,300°F and 3,300°F and provide excellent insulation when burnt.

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The alumina and silica of fire clay, which is used to manufacture firebricks, allow it to withstand high temperatures. Hard bricks are available in a variety of grades, including the following:

  • – Low-Duty: Alumina content is between 24% and 26%. Designed for use in fireplace chimneys, this material can resist temperatures of up to 1,750 degrees Fahrenheit.
  • – Medium-Duty: Alumina content ranges between 34% and 38%. Ceramic kilns and chimneys up to 2,700oF can use this material.
  • – High-Duty: Alumina content is 36-40%. Chimneys, boilers, backup linings, and ceramic kilns all use this material. It can endure up to 2,850 degrees Fahrenheit.


There are a variety of forms and sizes available for refractory bricks, including the conventional 9 x 4.5 x 2.5-inch dimension.

  • – Lines of Fire
  • – Soaps –
  • – Divided by sections
  • – Archaeological
  • – Wedge.

Fire bricks come in a variety of shapes and sizes, and the ideal choice depends on how you want to use them. With a saw, firebricks that insulate can be simply cut, however hard bricks require special equipment to be cut. Consider what you intend to use your fire bricks for before making a decision, and choose the shape that best meets your needs!

What are the Best Fire Bricks for Pizza Ovens?

Concrete fire bricks should be avoided if you’re looking for them exclusively for your pizza oven. Unlike concrete bricks, which crack easily at high temperatures, clay and kiln-fired bricks are great for pizza baking magic.

You won’t have to worry about your fire bricks melting in a pizza oven, which can reach temperatures of around 1,000°F. Even low-duty models are capable of withstanding temperatures much higher!

It’s A Wrap!

In light of your newfound knowledge, we believe that the task at hand will be significantly easier for you. If you don’t have things in your possession now, you may not be able to use them in the future when they’re needed. Check out how to use a wood stove damper for more articles like this. Thank you for your attention! I trust you took something away from this.