# WaterHeaterChecker.com > Free water heater age decoder. Enter a serial number to find out exactly when your water heater was manufactured, or add a model number for verified capacity, warranty length, and warranty status. Covers 32 major brands. Used daily by homeowners, plumbers, and home inspectors. Run by Austin Barnes, managing partner of Water Pros Plumbing in Gilbert, Arizona. The serial number decoder uses brand-specific decoding logic with manufacturer documentation as the source of truth. ## Main Tools - [Water Heater Age Checker](https://waterheaterchecker.com/): Decode any water heater serial number to find the manufacturing date and current age. - [All Supported Brands](https://waterheaterchecker.com/brands/): Index of every brand with a dedicated decoder page. - [Recall Database](https://waterheaterchecker.com/recalls/): CPSC water heater recalls organized by brand, with model numbers and dates. - [Warranty Lookup](https://waterheaterchecker.com/warranties/): Manufacturer warranty terms by brand, with what voids coverage. - [Replacement Cost Calculator](https://waterheaterchecker.com/replacement-cost-calculator/): Estimate the cost to replace your water heater based on type, size, and region. - [Heater Lifespan Database](https://waterheaterchecker.com/database/): Real-world failure and leaking ages reported by homeowners. ## Brand Age Decoder Pages - [American Standard Water Heater Age](https://waterheaterchecker.com/american-standard-water-heater-age/) - [A.O. Smith Water Heater Age](https://waterheaterchecker.com/ao-smith-water-heater-age/) - [American Water Heater Age](https://waterheaterchecker.com/american-water-heater-age/) - [Bosch Water Heater Age](https://waterheaterchecker.com/bosch-water-heater-age/) - [Bock Water Heater Age](https://waterheaterchecker.com/bock-water-heater-age/) - [Bradford White Water Heater Age](https://waterheaterchecker.com/bradford-white-water-heater-age/) - [U.S. Craftmaster Water Heater Age](https://waterheaterchecker.com/us-craftmaster-water-heater-age/) - [Vanguard Water Heater Age](https://waterheaterchecker.com/vanguard-water-heater-age/) - [Vaughn Water Heater Age](https://waterheaterchecker.com/vaughn-water-heater-age/) - [Envirotemp Water Heater Age](https://waterheaterchecker.com/envirotemp-water-heater-age/) - [EcoSmart Water Heater Age](https://waterheaterchecker.com/ecosmart-water-heater-age/) - [General Electric (GE) Water Heater Age](https://waterheaterchecker.com/ge-water-heater-age/) - [Giant Water Heater Age](https://waterheaterchecker.com/giant-water-heater-age/) - [GSW Water Heater Age](https://waterheaterchecker.com/gsw-water-heater-age/) - [Hotpoint Water Heater Age](https://waterheaterchecker.com/hotpoint-water-heater-age/) - [Jetglas Water Heater Age](https://waterheaterchecker.com/jetglas-water-heater-age/) - [Kenmore Water Heater Age](https://waterheaterchecker.com/kenmore-water-heater-age/) - [Lochinvar Water Heater Age](https://waterheaterchecker.com/lochinvar-water-heater-age/) - [Navien Water Heater Age](https://waterheaterchecker.com/navien-water-heater-age/) - [Noritz Water Heater Age](https://waterheaterchecker.com/noritz-water-heater-age/) - [John Wood Water Heater Age](https://waterheaterchecker.com/john-wood-water-heater-age/) - [Mor-Flo Water Heater Age](https://waterheaterchecker.com/mor-flo-water-heater-age/) - [Paloma Water Heater Age](https://waterheaterchecker.com/paloma-water-heater-age/) - [Marathon Water Heater Age](https://waterheaterchecker.com/marathon-water-heater-age/) - [Maytag Water Heater Age](https://waterheaterchecker.com/maytag-water-heater-age/) - [Reliance Water Heater Age](https://waterheaterchecker.com/reliance-water-heater-age/) - [Rheem Water Heater Age](https://waterheaterchecker.com/rheem-water-heater-age/) - [Richmond Water Heater Age](https://waterheaterchecker.com/richmond-water-heater-age/) - [Rinnai Water Heater Age](https://waterheaterchecker.com/rinnai-water-heater-age/) - [Ruud Water Heater Age](https://waterheaterchecker.com/ruud-water-heater-age/) - [State Water Heater Age](https://waterheaterchecker.com/state-water-heater-age/) - [Takagi Water Heater Age](https://waterheaterchecker.com/takagi-water-heater-age/) - [Titan Water Heater Age](https://waterheaterchecker.com/titan-water-heater-age/) - [Whirlpool Water Heater Age](https://waterheaterchecker.com/whirlpool-water-heater-age/) ## Brand Recall Pages - [AO Smith Water Heater Recalls](https://waterheaterchecker.com/ao-smith-water-heater-recalls) - [American Standard Water Heater Recalls](https://waterheaterchecker.com/american-standard-water-heater-recalls) - [American Water Heater Recalls](https://waterheaterchecker.com/american-water-heater-recalls) - [Bosch Water Heater Recalls](https://waterheaterchecker.com/bosch-water-heater-recalls) - [Bradford White Water Heater Recalls](https://waterheaterchecker.com/bradford-white-water-heater-recalls) - [GE Water Heater Recalls](https://waterheaterchecker.com/ge-water-heater-recalls) - [Giant Water Heater Recalls](https://waterheaterchecker.com/giant-water-heater-recalls) - [Gsw Water Heater Recalls](https://waterheaterchecker.com/gsw-water-heater-recalls) - [Htp Water Heater Recalls](https://waterheaterchecker.com/htp-water-heater-recalls) - [John Wood Water Heater Recalls](https://waterheaterchecker.com/john-wood-water-heater-recalls) - [Kenmore Water Heater Recalls](https://waterheaterchecker.com/kenmore-water-heater-recalls) - [Lochinvar Water Heater Recalls](https://waterheaterchecker.com/lochinvar-water-heater-recalls) - [Navien Water Heater Recalls](https://waterheaterchecker.com/navien-water-heater-recalls) - [Noritz Water Heater Recalls](https://waterheaterchecker.com/noritz-water-heater-recalls) - [Paloma Water Heater Recalls](https://waterheaterchecker.com/paloma-water-heater-recalls) - [Reliance Water Heater Recalls](https://waterheaterchecker.com/reliance-water-heater-recalls) - [Rheem Water Heater Recalls](https://waterheaterchecker.com/rheem-water-heater-recalls) - [Richmond Water Heater Recalls](https://waterheaterchecker.com/richmond-water-heater-recalls) - [Rinnai Water Heater Recalls](https://waterheaterchecker.com/rinnai-water-heater-recalls) - [Ruud Water Heater Recalls](https://waterheaterchecker.com/ruud-water-heater-recalls) - [Sears Water Heater Recalls](https://waterheaterchecker.com/sears-water-heater-recalls) - [State Water Heater Recalls](https://waterheaterchecker.com/state-water-heater-recalls) - [Stiebel Eltron Water Heater Recalls](https://waterheaterchecker.com/stiebel-eltron-water-heater-recalls) - [Takagi Water Heater Recalls](https://waterheaterchecker.com/takagi-water-heater-recalls) - [Whirlpool Water Heater Recalls](https://waterheaterchecker.com/whirlpool-water-heater-recalls) - [Westinghouse Water Heater Recalls](https://waterheaterchecker.com/westinghouse-water-heater-recalls) - [Eemax Water Heater Recalls](https://waterheaterchecker.com/eemax-water-heater-recalls) - [Chronomite Water Heater Recalls](https://waterheaterchecker.com/chronomite-water-heater-recalls) - [Aqua Pure Water Heater Recalls](https://waterheaterchecker.com/aqua-pure-water-heater-recalls) - [Ariston Water Heater Recalls](https://waterheaterchecker.com/ariston-water-heater-recalls) - [Vaughn Water Heater Recalls](https://waterheaterchecker.com/vaughn-water-heater-recalls) ## Brand Warranty Pages - [Rheem Water Heater Warranty](https://waterheaterchecker.com/rheem-water-heater-warranty) - [Ruud Water Heater Warranty](https://waterheaterchecker.com/ruud-water-heater-warranty) - [Richmond Water Heater Warranty](https://waterheaterchecker.com/richmond-water-heater-warranty) - [AO Smith Water Heater Warranty](https://waterheaterchecker.com/ao-smith-water-heater-warranty) - [State Water Heater Warranty](https://waterheaterchecker.com/state-water-heater-warranty) - [American Water Heater Warranty](https://waterheaterchecker.com/american-water-heater-warranty) - [Reliance Water Heater Warranty](https://waterheaterchecker.com/reliance-water-heater-warranty) - [Whirlpool Water Heater Warranty](https://waterheaterchecker.com/whirlpool-water-heater-warranty) - [US Craftmaster Water Heater Warranty](https://waterheaterchecker.com/us-craftmaster-water-heater-warranty) - [Bradford White Water Heater Warranty](https://waterheaterchecker.com/bradford-white-water-heater-warranty) - [Rinnai Water Heater Warranty](https://waterheaterchecker.com/rinnai-water-heater-warranty) - [Navien Water Heater Warranty](https://waterheaterchecker.com/navien-water-heater-warranty) - [Noritz Water Heater Warranty](https://waterheaterchecker.com/noritz-water-heater-warranty) - [Takagi Water Heater Warranty](https://waterheaterchecker.com/takagi-water-heater-warranty) - [Lochinvar Water Heater Warranty](https://waterheaterchecker.com/lochinvar-water-heater-warranty) - [Bosch Water Heater Warranty](https://waterheaterchecker.com/bosch-water-heater-warranty) - [Kenmore Water Heater Warranty](https://waterheaterchecker.com/kenmore-water-heater-warranty) - [GE Water Heater Warranty](https://waterheaterchecker.com/ge-water-heater-warranty) - [American Standard Water Heater Warranty](https://waterheaterchecker.com/american-standard-water-heater-warranty) - [Envirotemp Water Heater Warranty](https://waterheaterchecker.com/envirotemp-water-heater-warranty) - [Marathon Water Heater Warranty](https://waterheaterchecker.com/marathon-water-heater-warranty) ## Educational Guides - [Hard Water and Your Water Heater: Effects, Prevention, and Fixes](https://waterheaterchecker.com/resources/hard-water-and-water-heaters) - [Water Heater Element: How to Test and Replace It (DIY Guide)](https://waterheaterchecker.com/resources/water-heater-element-replacement) - [Water Heater Replacement Cost in 2026: What You'll Actually Pay](https://waterheaterchecker.com/resources/water-heater-replacement-cost) - [How Long Does a Water Heater Last? Lifespan by Type and Brand](https://waterheaterchecker.com/resources/how-long-does-a-water-heater-last) - [How to Drain a Water Heater (Step-by-Step Guide)](https://waterheaterchecker.com/resources/how-to-drain-a-water-heater) - [The 2029 Water Heater Law: What It Means for Your Home](https://waterheaterchecker.com/resources/2029-water-heater-law-explained) - [Heat Pump vs. Electric Tankless Water Heater: An Honest Comparison](https://waterheaterchecker.com/resources/heat-pump-vs-electric-tankless-water-heater) - [Heat Pump Water Heater Pros and Cons: 2026 Buyer's Guide](https://waterheaterchecker.com/resources/heat-pump-water-heater-pros-and-cons) - [Tankless Water Heater Pros and Cons: What to Know Before You Buy](https://waterheaterchecker.com/resources/tankless-water-heater-pros-and-cons) - [Do You Have to Replace Your Water Heater by 2029?](https://waterheaterchecker.com/resources/do-you-have-to-replace-water-heater-2029) - [Water Heater Rebates in 2026: What's Actually Left](https://waterheaterchecker.com/resources/water-heater-rebates-2026) - [Why Won't My Water Heater Produce Hot Water?](https://waterheaterchecker.com/resources/why-is-my-water-heater-not-producing-hot-water) - [How to Relight a Water Heater Pilot Light Safely](https://waterheaterchecker.com/resources/how-to-relight-water-heater-pilot-light-safely) - [Why Is My Hot Water Brown or Discolored?](https://waterheaterchecker.com/resources/why-is-my-hot-water-brown-or-discolored) - [Why Does My Hot Water Run Out So Fast?](https://waterheaterchecker.com/resources/why-does-my-hot-water-run-out-so-fast) - [Why Is My Water Heater Making a Popping Sound?](https://waterheaterchecker.com/resources/why-is-my-water-heater-making-popping-sound) - [Gas Water Heater Won't Ignite? 9 Causes and How to Fix Each](https://waterheaterchecker.com/resources/gas-water-heater-wont-ignite-troubleshooting-guide) - [What Temperature Should a Water Heater Be Set To?](https://waterheaterchecker.com/resources/what-temperature-should-water-heater-be-set-to) - [Signs Your Water Heater Is About to Fail](https://waterheaterchecker.com/resources/signs-your-water-heater-is-about-to-fail) - [How to Prevent Water Heater Rust and Corrosion](https://waterheaterchecker.com/resources/how-to-prevent-water-heater-rust-and-corrosion) - [How Often Should You Flush a Water Heater?](https://waterheaterchecker.com/resources/how-often-should-you-flush-a-water-heater) - [What Size Water Heater Do I Need for My Family?](https://waterheaterchecker.com/resources/what-size-water-heater-do-i-need) - [Propane vs. Natural Gas Water Heaters](https://waterheaterchecker.com/resources/propane-vs-natural-gas-water-heater) - [Repair or Replace Your Water Heater?](https://waterheaterchecker.com/resources/repair-or-replace-water-heater) - [Tank vs. Tankless Water Heaters Compared](https://waterheaterchecker.com/resources/tank-vs-tankless-water-heater) - [What Is a Water Heater Anode Rod?](https://waterheaterchecker.com/resources/what-is-an-anode-rod) - [Water Heater Expansion Tanks: Do You Need One?](https://waterheaterchecker.com/resources/water-heater-expansion-tank) - [What Voids a Water Heater Warranty?](https://waterheaterchecker.com/resources/what-voids-water-heater-warranty) - [Water Heater Sediment Buildup: Signs and Fixes](https://waterheaterchecker.com/resources/water-heater-sediment-buildup-signs) - [Tankless Water Heater Error Codes by Brand](https://waterheaterchecker.com/resources/tankless-water-heater-error-codes) - [Tankless Water Heater Installation Cost](https://waterheaterchecker.com/resources/tankless-water-heater-installation-cost) - [Why Does My Tankless Heater Keep Shutting Off?](https://waterheaterchecker.com/resources/tankless-water-heater-keeps-shutting-off) - [Electric Water Heater Tripping Breaker: 5 Fixes](https://waterheaterchecker.com/resources/electric-water-heater-keeps-tripping-breaker) - [How Long Does It Take a Water Heater to Heat Up?](https://waterheaterchecker.com/resources/how-long-does-water-heater-take-to-heat-up) - [What Is a Water Heater's First Hour Rating?](https://waterheaterchecker.com/resources/what-is-water-heater-first-hour-rating) - [Water Heater Smells Like Rotten Eggs? Causes & Fixes](https://waterheaterchecker.com/resources/water-heater-smells-like-rotten-eggs-causes-fixes) - [Water Heater Leaking From Bottom? Check Age First](https://waterheaterchecker.com/resources/water-heater-leaking-from-bottom-check-age-first) - [Water Heater Leaking From the Top? Causes & Fixes](https://waterheaterchecker.com/resources/water-heater-leaking-from-the-top-causes-fixes) - [Water Heater Thermocouple Replacement: DIY Guide](https://waterheaterchecker.com/resources/water-heater-thermocouple-replacement-diy-guide) - [Water Heater Pressure Relief Valve: Dripping, Testing, and Replacing](https://waterheaterchecker.com/resources/water-heater-pressure-relief-valve) ## About - [About](https://waterheaterchecker.com/about/): About Austin Barnes and the site mission. - [Contact](https://waterheaterchecker.com/contact/): Get in touch. - [Partners](https://waterheaterchecker.com/partners/): Free plumbing directory listing for plumbing companies, launching this fall.