How to Clean Fire Brick

Written by shae hazelton
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How to Clean Fire Brick
Cleaning your fire brick keeps it attractive and safe. (fuoco image by guby20 from

Firebrick is a special brick that can withstand high temperatures other stone would not be able to handle. Fireplaces, kilns and furnaces are only a few of the places where you will find this heat resistant brick. Just because the brick is tough enough to handle extreme heat doesn't mean you should leave it unattended, though. Regular maintenance such as cleaning is important to keep your firebrick in top shape. Without proper cleaning, filth can accumulate on the firebrick and lead to a potential fire hazard.

Skill level:
Moderately Easy

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Things you need

  • Gloves
  • Mask
  • Brush
  • Dustpan
  • Dustbin
  • Putty
  • Scouring detergent
  • Water

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  1. 1

    Don a pair of gloves and a cotton mask before you begin the cleaning process. If you encounter large amounts of soot while you clean, it may become difficult to breathe while you work and it may dye your hands black. The gloves and the mask lower the chances of encountering these inconveniences.

  2. 2

    Remove anything on top of the firebrick before you begin. For the sake of thoroughness, never try to work around an obstacle that sits on the brick. Always remove the obstacle and then commence cleaning the brick.

  3. 3

    Brush away soot from the surface of the firebrick. Collect the soot and dispose it in a dustbin. Removing the loose soot will expose some of the more difficult stains beneath.

  4. 4

    Press children's play putty onto the firebrick to remove the last vestiges of soot from the brick. Press it down on the bricks thoroughly and then peel it back. When you look at the putty, you will see all the soot it lifted away.

  5. 5

    Mix scouring detergent with water to create an abrasive paste.

  6. 6

    Test some scouring powder on an inconspicuous part of your firebrick. If it does not cause damage, scrub it onto the rest of the brick to help lift and remove stains.

  7. 7

    Rinse the firebrick until the scouring detergent washes from the surface. Never leave the compound on the brick because it may catch fire.

Tips and warnings

  • Wear clothes you are willing to get dirty when you clean the firebrick. The soot can leave unsavory stains on your clothing.

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