I have a 10'piece of 2" copper pipe. I am looking for ideas to use it for something
interesting. I have seen a heat exchanger that is a coil over (drain) tube that
reclaims the heat from a shower drain and other uses such as tube (or tubes) in a tube heat
exchanger for hot water systems. Except for the shower drain exchanger I have not seen
2" copper used for heat exchangers, perhaps because of the cost? I don't want to scrap
this nice piece of copper. Thank you.
