Solved How Old Is My Water Tank 1131A016009 Water Heater

Chosen Solution

Model number 153.331661

Hi @prodriguez7711 , Hopefully the information (at least the month (or week) and year of manufacture) should be stamped on the rating plate. Here’s an image taken from the User guide for your model water heater - see p.10, showing the location of the rating plate.

(click on image to enlarge for better viewing)