[TheForge] Re: Steel question OT

[Andrew Vida]

Mike wrote:

> The book also mentions that Wright's Johnson Wax building (circa 1937)
> used wrought iron steam pipe for cast-in-concrete radiant heating.
> Anybody know if they had to jackhammer up the floor to replace the
> pipe or if it's still working?

	I don't know, but if I had to bet, I'd put my money on a still working 
system.  Wrought is pretty amazing stuff.