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Enter Serial Number

Enter the serial number exactly as shown on the product label

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Smart Lookup

Model Number or Description

Enter a model number, brand + model, or description to estimate the age

🔌 Works for appliances, water heaters, and electronics — TVs, computers, phones, and any brand not listed in the tabs above.

📊 Decoded Results

Manufacture Date

Month / Period

Brand

Estimated Age —

Decoding Method

Important Notes

How this was determined

We use manufacturer serial format rules and published industry references to extract manufacture date information from serial numbers. Some brands reuse year codes across decades, which is why multiple valid years may appear. When two years are shown, the correct decade can typically be confirmed using physical condition, purchase records, or known installation dates.

Rheem Serial Number Decoder

Find the manufacture date and age of your Rheem equipment.

Decode Your Rheem Serial Number

Enter your full Rheem serial number for an instant manufacture date — no account needed.

Tag Location Guide

Locate the rating plate on the mid-section of water heater tanks or near the coil access panel on AC units.