Moler Refractory Insulation Bricks

[g20wey]

Hi All,

New to the site and pizza ovens.

I've designed a pizza oven with a 1m diameter and I'm looking to source the materials needed to build.

My question is regarding the Firebricks.

I see that the standard size is 230 x 114 x 76 but have seen different variations in alumina percentage which take different temperature ranges.

Can you confirm what is the minimum amount of Alumina needed as I have been able to source some Moler bricks which I'm being advised are suitable for applications up to 900 deg. C? Is the Alumina relavant?

Has anyone used these? From data sheets these seem to be a lot lower content of alumina but is this relevant if they will take 900 deg. c which I'm assuming will be acceptable?

I believe they could be manufactured by Cupola.

Finally are there any decent posts on Pompeii ovens and the material listings needed?

I appreciate any response

Thanks, Matt

[albacore]

It looks like Moler bricks are an insulating brick - see here and therefore not suitable for construction of a standard pizza oven. the spec overview states that they are low heat storage, you need high heat storage.

The oven needs to be made of high mass solid bricks to give good heat retention properties. The oven structure is then all-over insulated to keep the heat in those solid bricks.

I think 40% alumina firebricks are the preferred option; alternatives are storage heater bricks and reclaimed terracotta bricks.

Lance

[g20wey]

Cheers Lance