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A.O. Smith

Style 1: (Pre 2008)
The Date of Manufacture is found in the first 3 digits of the serial number
B 06 1234567
B Month (February)
06 Year

A January    J September
B February    K October
C March        L November
D April        M December
E May            
F June
G July
H August


Style 2: (2008 Forward)
The Date of Manufacture is found in the first 4 digits of the serial number
08 10 1234567
08 2008
10 Week Ten

A.O. Smith Corporation is a leading manufacturer of residential and commercial water heating equipment, renowned for their quality, efficiency, and innovation. Their extensive product range includes tankless, electric, gas, and hybrid water heaters, catering to diverse household and commercial needs. A. O. Smith is at the forefront of technological advancements, offering features like condensing technology for higher efficiency, tankless models for on-demand hot water, and hybrid systems that combine heat pump technology with traditional electric elements for superior energy efficiency. Many of their models are ENERGY STAR® certified, ensuring they meet or exceed federal guidelines for energy savings. Durability is a hallmark of A. O. Smith products, with robust construction and long-lasting components, often backed by warranties ranging from 6 to 12 years. The company also excels in customer support, providing comprehensive resources, troubleshooting guides, and access to professional service technicians, 
along with online tools to help customers select the ideal water heater for their specific needs. Overall, A. O. Smith hot water heaters are a dependable and efficient choice for both residential and commercial applications.

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