It is my understanding that modern codes favor black pipe. In New
York, I don't think copper is allowed with gas, especially if it is
inside a wall. The concern is that someone drives a nail, hits the
pipe and creates a small leak. Eventually enough gas leaks out that
a spark can blow up the whole house. Also, gas work typically
requires leak testing with a pressure gauge. The system has to hold
pressure for a certain amount of time to prove that there are no
leaks, even small ones. That is the big difference between water and
gas. A small water leak may rot out some boards and wet some carpet
or sheetrock. A small gas leak, given some time, can create an
explosive situation. I am not saying don't do it. Just learn a lot
about what you are doing and what the requirements are. Read stuff,
ask people, get all the information you can. Maybe you can find a
pro who would review your plans and look over and test the finished
work, for a reasonable fee. I don't know if you can find someone
willing to do that, but it might be a good solution if you can.
-Steve Trovato
strovato@optonline.net
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