At least ten years old. Suspect it may be a commercial grade unit, but would it be wise to install in a residence considering the age of the unit? If it is SS or Everdur tank it will last almost forever, right? Any input appreciated. Thank you!
I have been told that stainless can be deteriorated by certain acidity levels and the most vulnerable part of stainless is where it is welded together.
I wanted to build an all stainless steel water heater someday and I got shot down on my idea. It just seems hard to believe it cannot be done.