Originally Posted By: kelliott This post was automatically imported from our archived forum.
Can anybody confirm date on a Ruud 40 gal model RPL40
Serial 0888316201
I tried to use the online calculator somebody posted a while back, but it won’t specifically show Ruud. I tried that serial # as an AO Smith, and it put it at 17.7 yrs. The house is 18 yrs, so that would make sense, if it’s original.