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Knowing the age of your water heater is essential for maintenance, safety, and planning for a replacement. An aging water heater can become less efficient, leading to higher energy bills and potential breakdowns. In this guide, we’ll show you how to determine the age of your water heater, including specific instructions for popular brands like Rheem, A.O. Smith, American, Bradford White, Ruud, GE, and State. For those that use ChatGPT use our Water Heater Analysis tool by uploading a photo on this link.

Water Heater Age: How to Determine the Age of Your Water Heater

Knowing the age of your water heater is essential for maintenance, safety, and planning for a replacement. An aging water heater can become less efficient, leading to higher energy bills and potential breakdowns. In this guide, we’ll show you how to determine the age of your water heater, including specific instructions for popular brands like Rheem, A.O. Smith, American, Bradford White, Ruud, GE, and State.


Why Knowing Your Water Heater’s Age Is Important

  • Efficiency: Older units may not operate as efficiently, increasing energy costs.
  • Safety: Aging water heaters can pose safety risks, including leaks or even bursts.
  • Planning for Replacement: Knowing the age helps you anticipate when a replacement might be necessary.

How to Find Your Water Heater’s Serial Number

The serial number is typically located on the manufacturer’s label, which is often found on the upper portion of the water heater. This label contains vital information, including the model and serial numbers, wattage capacity, and other specifications.


Decoding Serial Numbers by Brand

Rheem

Rheem Water Heater Label

  • Format: The first four digits of the serial number represent the month and year of manufacture.
  • Example: Serial Number 0810****
    • 08 = August
    • 10 = 2010
    • Manufactured: August 2010

A.O. Smith

  • Format: The first two digits represent the year, and the next two digits represent the week of manufacture.
  • Example: Serial Number 9710****
    • 97 = 1997
    • 10 = 10th week
    • Manufactured: March 1997

American Water Heaters

American Water Heater Label

  • Format: Similar to A.O. Smith, the first two digits are the year, and the next two digits are the week.
  • Example: Serial Number 1512****
    • 15 = 2015
    • 12 = 12th week
    • Manufactured: March 2015

Bradford White

Bradford White uses a letter code for the year and month.

  • Year Codes:
    • A = 1984, B = 1985, …, Y = 2002, Z = 2003, A = 2004, B = 2005, and so on.
  • Month Codes:
    • A = January, B = February, …, M = December (Note: I and O are skipped).
  • Example: Serial Number DG****
    • D = April
    • G = 2005
    • Manufactured: April 2005

Ruud

  • Format: The first four digits represent the month and year.
  • Example: Serial Number 0905****
    • 09 = September
    • 05 = 2005
    • Manufactured: September 2005

GE (General Electric)

  • Format: The first four digits indicate the month and year.
  • Example: Serial Number 0604****
    • 06 = June
    • 04 = 2004
    • Manufactured: June 2004

State Industries

  • Format: The letter represents the month, followed by a two-digit year.
  • Month Codes:
    • A = January, B = February, …, M = December (skipping I).
  • Example: Serial Number H14****
    • H = August
    • 14 = 2014
    • Manufactured: August 2014

Need Help Determining Your Water Heater’s Age?

If you’re unsure about your water heater’s age or need professional assistance, we’re here to help. Click here to use our online tool that determines the age of your water heater, or contact our experts for personalized support.


Conclusion

Regularly checking the age of your water heater ensures you stay ahead of potential issues. By understanding how to decode the serial number, you can make informed decisions about maintenance or replacement, ensuring continuous comfort and safety in your home.


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About the Author

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Eric Strand is a highly experienced master plumber and the owner of Water Heating Experts LLC, a reputable plumbing company based in Palm Beach Gardens, Florida. With over two decades of industry expertise, Eric has established himself as a trusted professional in the field of plumbing and water heating services.

Eric began his plumbing journey in Colorado in 1995, where he obtained his master plumber license. His dedication to his craft and commitment to delivering exceptional workmanship quickly earned him a stellar reputation among clients and colleagues alike. Throughout his career, Eric has consistently demonstrated a strong work ethic, attention to detail, and a passion for providing reliable and efficient plumbing solutions.

In 2004, Eric expanded his professional horizons by acquiring a certified plumbing contractor license in Florida. This enabled him to bring his extensive knowledge and expertise to the vibrant plumbing market in the state. Recognizing the growing demand for specialized water heating services, Eric established Water Heating Experts LLC to cater to the unique needs of residential and commercial clients in Palm Beach Gardens and surrounding areas.

Prior to founding Water Heating Experts LLC, Eric also owned and operated DesignerPlumbingOutlet.com. Through this venture, he gained valuable insights into the plumbing industry and developed a deep understanding of customer preferences and the latest trends in plumbing fixtures and accessories. This experience further enhanced his ability to provide comprehensive and customized plumbing solutions to his clients.

As the owner of Water Heating Experts LLC, Eric Strand continues to lead his team of skilled professionals in delivering top-notch plumbing services. From water heater installations and repairs to plumbing system maintenance and emergency plumbing assistance, Eric and his team are known for their prompt response, technical proficiency, and dedication to customer satisfaction.

Eric's commitment to excellence extends beyond his business endeavors. He actively stays up-to-date with the latest advancements in plumbing technology and techniques, ensuring that Water Heating Experts LLC remains at the forefront of the industry. Additionally, Eric maintains strong professional affiliations, regularly participating in industry associations and fostering collaborations with other plumbing experts.

With his impressive track record, Eric Strand is regarded as a reputable and reliable authority in the plumbing industry. Whether it's resolving complex plumbing issues or providing expert advice on water heating solutions, Eric's expertise and customer-centric approach make him a go-to professional for all plumbing needs in Palm Beach Gardens, Florida.


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