hi people does anyone know if marble would be a smart decision to use permanently as the base of my pizza oven that i am currently building i have two pieces of pink and white marble about 1 inch thick .i am building an oven out of a gas cylinder ya know the big ones ya see at the servo they use to fill ya barby bottle. i have cut one lengthways and then cut out the bottom and welded in a chimney i want to build four brick walls with about 300 mm cavity around the cylinder has anyone got any sugestions on what medium i could use to fill the cavity i will have a flat top on this structure and use as a preparation area with the chimney protruding .i am trying to create the idea of thermal mass on a smaller scale the cylinder is 6 mm thick to start with.this is an idea that i think will make a good oven to cook pizza ,bread and whatever else .it sounds a little crazy but what the hell .any sugestions would be welcome .cheers
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This is a quite an interesting idea. My first thought is how suitable is marble in conducting and retaining heat? Fire bricks are expensive but are able to retain heat. Because it's a pizza oven I assume that you'll only be working with live heat. If the marble doesn't crack, then I think it could work.
I googled and got this "Granite or limestone should be good. Don't use sedimentary rocks or anything that absorbs water."
All the best,
Maedi
Fire bricks in action, from My Brick Oven