Raypak® Water Heater Age

How to determine the date of production/manufacture or age of Raypak® Water Heater Systems.

The date of production/manufacture or age of Raypak® Water Heating equipment can be determined from the serial number.

Parent Company:  Raypak, Inc., a Rheem Company

Example serial number styles/formats found:

→ Style 1: 0306014119 (1995 – Present)
→ Style 2: 0386010019 (1994 – back)

Legend: Year is RED; Month is GREEN; Week is BLUE

Style 1:    0306014119

1995 to present


Style 2:    0386010019

1994 and prior


Page last updated: 10/6/2016