TankBirthday

Water Heater Serial Number Photo Lookup — Read It From a Photo

Read a Worn Data Plate Without Squinting

The serial number on your water heater's rating plate is the key to its age — but after a decade in a basement, that sticker can be faded, dusty, or half-painted-over. Typing characters you can barely read is how mistakes happen: a 0 that's actually an O changes the date.

This tool reads the plate from a photo instead:

  1. Take a photo of the rating plate — the silver sticker on the side of the tank (or the side panel on tankless units). Flat and close beats far and angled.
  2. Upload it above. The OCR runs in your browser — the photo never leaves your device.
  3. Check the candidates. The tool shows every serial-like code it found and runs each one through every brand format on the site, so a misread character is flagged instead of silently producing a wrong date.

Why This Matters for an Old Tank

A water heater past its typical 8–12 year lifespan is a leak waiting to happen. The date on that faded sticker decides whether you budget for a replacement this year or next — and whether a repair is still covered by a warranty that runs from the manufacture date, not the install date. If the sticker is unreadable by eye, the photo lookup above is the fastest honest answer you can get without a plumber's visit.

The Honest Limits

OCR on a worn, glossy sticker is not perfect — the tool says so plainly. It shows you exactly what it read, checks every candidate against real decoder logic, and never guesses. If it can't find a recognizable serial, it tells you to try a better photo or enter the characters manually on the brand page. That "we don't know rather than guess" stance is the same one every decoder on this site follows.

Sources

Serial formats referenced by this tool are compiled from our own decoder implementations, verified against the InterNACHI water heater dating chart, Rheem's serial-number guide, A.O. Smith's production-date guidance, and Bradford White's serial-number guidance.

Frequently asked questions

How does the photo lookup work?
Choose a photo of your water heater's rating plate (data plate). Optical character recognition runs entirely in your browser — the photo is never uploaded to a server. The tool extracts serial-number-like codes from the text it reads, checks each one against every brand format on this site, and shows the matches with the decoded date and a link to the brand's page.
Is my photo uploaded anywhere?
No. The OCR runs in your browser with Tesseract.js, so the photo never leaves your device. That is deliberate: reading the label in your basement is exactly the job this tool is built for, and it works the same way even if your internet connection drops mid-read.
What if the photo is blurry or the sticker is worn?
OCR on worn stickers is best-effort — take the photo as flat and close as possible with even lighting, and keep the whole sticker in frame. The tool shows you every code it found so you can compare characters against the sticker; it never claims a date it did not decode through the same conservative logic used everywhere on this site.
Why would I use a photo instead of typing the serial?
If the sticker is faded, painted over, or in a tight crawlspace, typing the serial is error-prone — 0/O, 1/I/l, and 8/B are easy to mix up. The photo tool reads the characters for you and checks each candidate against the brand formats, so a misread character is caught instead of silently giving a wrong date.
Which brands does the photo lookup cover?
The same six formats as the rest of the site: Rheem and its labels (Ruud, Richmond, GE, and more), A.O. Smith and its labels (State, Reliance, American, Kenmore in most eras), Bradford White, and the tankless brands Navien, Rinnai, and Bosch.