Vermiculite Bricks

These vermiculite bricks line the fire chamber and protect the steel body from the heat produced by the fire.


They are a pressed board and not a ceramic brick and therefore should be treated with care. 

- Why do I need fire bricks? 


They are fitted to the stove for insulation purposes, allowing your stove to burn efficently but also acting as a heat barrier and preventing the flame from reaching the steel stove walls. 


- When should I replace my fire bricks? 

It is a perishable item and over time will need to be replaced. For help replacing the fire bricks, please look at our video to help you remove all the necessary parts before removing the old ones and putting the new fire bricks in. 


The bricks will last longer if you take good care of them. This includes burning the correct fuel and loading the fuel correctly into your stove. 


- What signs should I look for to see if I need new fire bricks?


Impact or vibration can cause a crack in a fire brick eg. a door shut on an oversized log, forcing the log aginst the vermiculite board. Degradation over time will include crumbling at the edge of the board, colour variations on the surface and in some cases cracking from wear and tear. 


Although it is not aesthetically pleasing a cracked or slightly damaged board will not have an detrimental effect on the operation of the stove. 


- How can I make my bricks last longer?


We have a few tips on how you can make your bricks last longer:

  • Do not use over sized logs in your stove. Cramming logs that are too big into your stove can cause damage to your stove, causing you to replace the firebricks more often
  • Take care to not overfill your stove. Putting too much fuel into your stove can damage your firebricks due to the extra weight and pressure
  • Ensure you only burn seasoned wood, see point below about moisture
  • Where possible, place the logs into the stove rather than throwing or dropping them. This reduces the shock absorbed by the firebricks, thus making them last longer. 
  • if cleaning your stove internally do not use water or water based cleaning agents, vermiculite will weaken if it absorbs moisture


- One of my fire bricks is broken/damaged. Should I replace a single fire brick or the whole set?


When your fire bricks need replacing, we recommend buying fire bricks in sets for the following reaons:

  1. It is easy to damage a neighbouring fire brick during the process of replacement. It is easier to have spare fire bricks to hand, rather than having to wait for a re-order to arrive.
  2. They can be stored for future use when required. When ordering a set of fire bricks, only replace the one that has broken, not the whole set. Keep the rest in store for future replacements. 
  3. It is also cheaper in the long run to buy fire bricks in sets rather than on their own. The postage and packing is also the same for a single brick as it is for a set. 


Bricks are available on their own, should you wish to only purchase a single replacement brick. 

Chilli Penguin Stoves




Tel:    01758 721 247

mob:  07818 442 108


You can also use our contact form

Opening Hours

Monday - Friday09:30 - 05:00


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