This information is presented as assistance to determine the date of manufacture and duration of the Limited Warranty only when the product is used, installed and maintained in accordance with the Installation/Operation Instructions and as per the terms and conditions of Limited Warranty packaged with the product. Warranty duration for residential product is based upon the entered serial number being installed and used in a single family dwelling application. Usage of residential product in other applications will shorten the duration of the warranty. Final determination of warranty status will be made by Bradford White Warranty Department. Our Warranty Department at is available 24 hours a day, 7 days a weekat 800-531-2111 for further information.