Ovention ovens are designed and manufactured in the heartland of the USA. Our state-of-the-art manufacturing facility and first-class customer service are based in Wisconsin. Ovention is committed to serving and meeting the needs of real-world commercial operators by providing ventless, energy-efficient and space-saving ovens. Ovention is proud to be a Hatco Corporation Company. Fresh Food Fast: Proprietary rapid cooking technologies and ease of operation ensure consistent results and quality.