Piping material used for forming gas would be 316L stainless steel.
To get the electricity from where it came from to where it is going, Just like water piping, gas piping, sewer piping, etc.
Gas piping must be bond to the appliance it serves.
No. Meters are set for different outgoing pressures. Higher pressure coming out meter allows for smaller piping to be used. A gas pressure regulator will be needed at each appliance to reduce gas pressure to required gas pressure for appliance. Gas company should be able to take care of meter. Gas company or plumber should know how to size piping.
The purpose of a drip leg in the gas piping is used as a device to capture dirt and debris from entering the furnace.
Most codes do not allow Galvanized piping/fittings on gas piping. I have used galvanized pipe/fittings on exterior gas piping before in the state of Michigan but other states do not allows this. Check with your local code authorities.
i dunna??
No it will not poison you. Copper piping is used extensively in Medical Gas applications. "TYPE L" signifies the wall thickness of the piping.
Yes, you can. You could also use pipe dope, according to my dad. He works for infra source installing natural gas piping.
There are various jobs where piping can be found: Engineering; Designer; Plumbing and Gas. As these jobs are 'trade' jobs, jobs in piping can take a person all around the world from the UK to America.
rooftop The correct answer is rooftop.
If referring to gas piping, NFPA prohibits this.