"Jimi" wrote:
-snip-
A really old Hot water heater will be made of copper and copper = $$$$
The newer ones are made from Galvanized steel though ...I've

The world is a very big place- but outside of museums I haven't seen a
copper water heater.

Where have you seen a copper [or even copper lined] one. Had to
be pre 1920's at least, wasn't it?

Jim