Fire bricks

[Tassie]

I intend to build an outdoor Pizza/Bread oven.  Where can I buy refractory fire bricks? A fire brick, firebrick, or refractory brick is a block of refractory ceramic material used in lining furnaces, kilns, fireboxes, and fireplaces. A refractory brick is built primarily to withstand high temperature, but will also usually have a low thermal conductivity for greater energy efficiency.
Regards