> I'm  doing some demo on my 50's kitchen, which was done pretty well,
> overall -- 3/4 black pipe to a 6 burner stove, etc.
> Except, they tee'd off underneath for the gas line to the oven, using 1/2
> or 5/8" copper, flare fitting.

> I've been told copper gets brittle with natural gas, and is therefore
> against many codes.  Is this accurate?  Is this a recent discovery?  Seems
> odd that the original installers would use 3/4" black pipe, and then wimp
> out at the end.

> Are there similar restrictions with copper and propane?  Other gases?
> If this restriction is only with nat gas, I assume it's because of the
> sulfer additive (smell) that reacts with the copper.

> tia
> --
> EA