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  • Brick Question

    I have a pile of bricks that were around, and underneath my old octopus furnace. I think that they are insulating bricks, but how can I be sure?
    They are not the size of firebrick, they are the size of a standard brick, white and quite light. They are sort of sandy feeling, like firebrick, and the fact that they were around what was originally a coal fired chunk of cast iron leads me to think that they are insulating bricks and would be a perfect alternative to the hassle of pouring the vermiculite concrete, or the expense of SuperIsol.

    Any ideas?

  • #2
    Re: Brick Question

    Originally posted by carrieanddan View Post
    I have a pile of bricks that were around, and underneath my old octopus furnace. I think that they are insulating bricks, but how can I be sure?
    They are not the size of firebrick, they are the size of a standard brick, white and quite light. They are sort of sandy feeling, like firebrick, and the fact that they were around what was originally a coal fired chunk of cast iron leads me to think that they are insulating bricks and would be a perfect alternative to the hassle of pouring the vermiculite concrete, or the expense of SuperIsol.

    Any ideas?
    How much do they weigh?
    That's a good starting point.
    Insulating bricks are quite light, while firebricks will weigh about 8 lbs or so.

    And how bout some pics....they may help.

    But they do sound like insulating bricks at this point.

    Dwats
    My thread:
    http://www.fornobravo.com/forum/f8/d...ress-2476.html
    My costs:
    http://spreadsheets.google.com/pub?k...Xr0fvgxuh4s7Hw
    My pics:
    http://picasaweb.google.com/dawatsonator

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    • #3
      Re: Brick Question

      I dug out a scale and weighed one of them... not as light as I thought. 4 pounds, 4 ounces. dimensions are 3 3/4"x8"x2 1/4".
      I will try to get a photo with it next to a standard firebrick.

      Thanks!

      DAN

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      • #4
        Re: Brick Question

        Sound like insulating brick.

        Keep a few. They will support a load and you will find them usefull for providing a "heat break " between the inside refractory dome and the outside finish when you go to build your portal / entrance.

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