Installing insulation between an oven floor and its base platform is an important step in protecting the oven's stand. A masonry wood-fired oven imparts a smoky flavour to the pizza while the heat retained in the oven floor can create a crispy crust.
A modern wood-burning pizza oven is a made from fire bricks or refractory concrete. A chimney is placed at the front of the oven and a small fire is started near the rear. Because of the insulating effects of the masonry, a small fire can produce a very hot oven. These hot temperatures are desirable for cooking traditional pizza.
Types of Insulation
Because a pizza oven can create extremely high temperatures, it is recommended that you use a ceramic fibre-insulating board or brick. This type of product can withstand temperatures of 1,000 to 1,800 degrees Celsius.
The oven enclosure should be supported by a strong concrete block or cast concrete foundation. A 6-inch wire mesh reinforced concrete slab should rest on top of the foundation.
Place the ceramic fibre-insulating board on top of the 6-inch concrete pad, then place the oven floor on top of the insulation and continue construction of the oven dome.
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