Rheem Water Heater Age by Serial Number
Decode your Rheem serial number to find the manufacturing date, age, and full specs. Free and instant — no account needed.
Rheem Water Heater Age & Model Info
Brand: Rheem (pre-selected)
Need a plumber? Get free quotes from trusted local plumbers
Share this tool with your friends!
Share this free tool — it takes 30 seconds to check
Finding Your Rheem Serial Number
Check these four spots on your Rheem water heater
Common Locations
What to Look For
- White or metallic manufacturer sticker
- Labeled "Serial No." or "S/N"
- Typically 8–12 characters long
- Usually near the model number
Can't find it? Try removing access panels or checking behind the temperature dial.
Rheem Serial Number Examples
Don't worry if yours looks different — Rheem has multiple formats and our system can decode most variations.
About Rheem Water Heaters
Rheem water heaters have earned their position as an industry leader through nearly a century of manufacturing expertise, beginning when brothers Richard and Donald Rheem founded the company in 1925. Headquartered in Atlanta, Georgia, Rheem operates as one of the world's largest producers of heating, cooling, and water heating products. The company pioneered numerous innovations including the first residential gas water heater in 1931 and continues to shape industry standards through investments in energy efficiency and smart home technology. Their products are sold through professional distributors and select retailers across North America.
The Rheem product portfolio encompasses traditional atmospheric gas models, power-vented systems, electric resistance units, tankless water heaters, and industry-leading heat pump hybrid models. Their Professional Prestige series delivers exceptional performance with features like self-cleaning technology that reduces sediment buildup and extends service life. Rheem's Marathon electric models feature a lifetime tank warranty thanks to seamless polybutene construction that eliminates corrosion concerns entirely. Many units achieve ENERGY STAR certification and UEF ratings exceeding 0.95, translating to significant energy savings over the product lifetime. The EcoNet smart monitoring system enables remote control and leak detection through smartphone integration.
Rheem supports customers through an extensive network of factory-trained contractors and service centers spanning all 50 states. Their Pro Network connects homeowners with qualified installers who understand proper sizing, venting requirements, and local code compliance. Warranty registration and support requests can be completed online, while technical service representatives provide phone assistance for troubleshooting and parts identification. The company's comprehensive model numbering system allows service technicians to quickly determine specifications, and their serial number formats reliably indicate manufacturing dates for maintenance planning and replacement decisions.