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Hearth design - Forno Bravo Forum: The Wood-Fired Oven Community

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  • Hearth design

    Hi everyone.

    I am starting to build a WFO.
    I've seen many plans and got an general idea of what I want.
    Materials here in Portugal are cheap but sometimes it's difficult for me to 'translate' the exact material.

    The concrete slab is already build and I will use a 30mm calcium silicate board as a bottom hearth insulation.
    My question concerns the layer between the CS board and the oven's floor tiles: since I will be using 'special' 30mm tiles for the oven floor (25x25x3) I guess I will be needing a layer to add some thermal mass under those tiles. I was thinking in making a 25mm-30mm additional refractory mortar layer for that purpose.

    What do you think?

    Thanks in advance.

    Regards,
    Mike
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