The internal dimensions are an oven 36 inches deep and 28 inches wide. The external oven dimensions are approximately 50 inches at its widest point and 65 inches deep. The walls and roof are a minimum 10 inches thick. The building materials are red brick, fire brick, concrete block and special mortar mix. The chimney is double walled insulated stainless steel.
All ovens crack as they cure, as moisture is driven out, and as the heat level is slowly built up.
Thus it is not wise to stucco or to paint the oven until the oven has fully cured, and the oven has cracked where it will most likely crack during these first months. After that, we will caulk the cracks with high temperature caulking, then stucco and finally paint it the color of the house. Over the years we will continue to patch subsequent cracks and repaint. We fire the oven about 2 hours before we intend to make pizza. Our oven is fired using maple or ash kindling, and split oak logs.