Whirlpool

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Manufacturer - American / A.O. Smith  

                                     

Style 1:
The Date of Manufacture is in the first four digits of the serial number and represent the month and week of production:
9840123456
98 40 237529
40 Week 
98 Year

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Whirlpool is a well-established brand known for its diverse range of home appliances, including hot water heaters that combine innovation, reliability, and efficiency. Whirpool hot water heaters were manufactured by American and A.O. Smith however Whirlpool no longer markets these under their brand name.