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?
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?
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