I can not locate the age of my water heater. I have the following #B04214068 and P6522ort2. Thank you

What brand are they? Is it Bradford White?

State water heater brands have the date encoded in the serial number

This link will help you identify where it is and how read it.

https://www.building-center.org/state-water-heater-age/

If you need more help, post back!