The brands below support direct serial number decoding — enter the serial number and get
an immediate manufacture date. Brands not listed here can still be researched using the
Alternative Lookup (AI-assisted) on the main tool.
Single unambiguous decode
Decade ambiguity — era selection or verification may be needed
Appliances
Water Heaters
A.O. Smith
American Water Heater
Bradford White
GE Water Heaters
Rheem
Ruud
State Industries
🔌 Not seeing your brand? The Alternative Lookup on the main tool
accepts any brand or model number and uses AI-assisted research to estimate manufacture era.
It covers appliances, electronics, HVAC, and more.
Kenmore note: Kenmore is manufactured by multiple OEM partners. Use the
first 3 digits of the model number (not the serial) to identify the actual
manufacturer, then decode using their brand's serial format.