Pizza Oven Insulation Vermiculite

A wood fired pizza oven requires an insulation lay on top on the initial internal dome of bricks and under the hearth so as to improve the heat retaining properties of the oven.

Pizza oven insulation vermiculite.

Vermiculite is used to insulate oven dome. Rado hand reckons a one inch layer of vermicrete has the same insulation properties as 20 of concrete. The dome is formed by applying the concrete over a spherical mold commonly an exercise ball and leaving it to dry. How to mix vermiculite concrete materials needed.

If you want to add the vermiculite concrete insulation you should wrap chicken wire around the oven leaving 3 4 of space for mortar layer. Vermiculite is mixed with cement at different ratio and applied on oven dome hearth and top of the oven roof as insulating material. 1 part by volume 40 50 litres of water. 100 or so recycled bricks 250kg pottery clay i got mine from a local pottery equipment supplier who.

In my case i used mortar and stone. Put your water in the mixer add first 50 litre bag of vermiculite. And to make damn nice pizza. That doesn t work as efficiently as vermiculite but still adds a new later of insulation and protection.

Vermiculite insulation for pizza oven dome. 6 parts by volume. 25kg of portland cement or cement fondu approx. At this stage the mixture should be a wet.

Even it helps to add another insulating material on pizza oven. Pros and cons of vermiculite or perlite. These builders will use a 5 1 6 1 or 7 1 parts insulator to one part concrete to build their hearth and skin the pizza oven dome. Generally the insulation is either fire blanket which is a material usually used.

How tobuild a high temperature pizza and bread baking oven from easily obtainable materials and avoid the use of expensive refractory bricks and to get it to heat as quickly as possible get maximum benefit from your fuel and use basic tools. A vermiculite pizza oven is one that is made from a concrete composed of the coarsely ground highly insulatory mineral vermiculite and a refractory cement suitable to withstand high temperatures. It works as good and very effective insulator in pizza oven. A cement mixer will destroy the vermiculite down to a powder making it a useless insulator.

100 litre or 2 x 50 litre bag of dineen vermiculite approx.