Wards Heater age

Specific Inspection Topics Inspecting HVAC Systems
1

Model # AN-6476
Serial # 06XA

2

http://www.buildingcenter.org/content/hvac-age-determination-help-form

I did not find “Wards” on this site, but you might send them the info and maybe they can help.

3

Is it Montgomery Wards? If so same as Rheem - 1st 2 numbers are month next 2 number are year.