I'm afraid I didn't ask. I have zero expertise in this area and simply
accepted the word of the established company. It was only after it was
installed that the building handyman said it should have been steel and that
the copper would start leaking steam in two years.

I did check and find that the warranty on the piping is 5 years. That's
reassuring.


"Mikepier" wrote in message
ups.com...

Ray wrote:
Thanks Mike -- Our system is steam.

Why do you suppose a reputable company of long standing wouldn't use the
standard?

Or perhaps the standard may have changed?

I guess if they installed a system which is truly incorrect and fails
fairly
quickly they might be open to a lawsuit.

-- Ray

Unless the codes have changed or differ where you live, I always
thought black steel was used for steam. Did you ask them why they used
copper?