Hi I am planning on building a pizza oven soon. Can you use insulation bricks under the fire bricks in the Hearth. I live in Thailand and am having difficulty finding vermiculite or Perlite, Isol, Laowool, Insulfrax etc... I have located firebricks, morter and industrial insulation bricks. I have read that Pumice may be used as an alternative. Has anyone tried this?
Thanks
Thanks
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