Water heaters / U.S. Craftmaster

How old is my U.S. Craftmaster water heater?

U.S. CraftmasterChange
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Where to find the serial number

Rating label on the side of a tank water heater
Close-up of a rating label showing the serial numberLook for “Serial No.” on the label above the gas valve

U.S. Craftmaster serial formats we can read

Dark = year, orange = month or week.

Year + production week

1924115263020

Week 24, 2019 (around June).

Coverage and sources

V1 supports the 13-digit year/week format only. Published descriptions conflict for the older 10-digit layout, so that layout is deliberately excluded. The worked example is from the American manufacturer family reference.

References checked 2026-10-26.

Independent reference tool, unaffiliated with U.S. Craftmaster. Sources & method