The chimney of a wood fired pizza oven is built as a vent for the release of smoke and hot gasses away from the oven. Without a suitable chimney, fire smoke is likely to become a hazard to the user of the oven, may damage surrounding property, or may potentially be safety concern. Oven chimneys comes in various shapes, sizes and materials. The structure may be made of bricks, concrete, or a prefabricated metal tube. Generally individuals prefer brick type chimneys as they enhanced the beauty of the oven or house if the house is also brick themed.