An oven is an enclosed, heated chamber, used to bake or roast food. Ovens were found in many forms in period; the form documented in period heraldry is specified as a “domed oven”, and is found in the arms of Stubenwid, c.1340 [Zurich 267]. The circular air vents are part of the definition of the charge, and are not considered tertiary charges. For related charges, see athanor.
John Doctor Smith bears: Azure, a domed oven argent vented sable.
Sven miðlungr bears: Argent, a domed oven sable vented argent.