Originally Posted by alemonkey
That's the other question I had - what type? I'd thought of black iron, but then I also thought maybe there's a flexible alternative that would be easier to work with.
With all the different pre-cut lengths of black iron pipe found on the shelf, it really shouldn't be too hard at all.
Copper tubing is an alternative, though a lesser quality and the price of copper is pretty high right now! You'll want a bender to avoid any kinks in the line. The type that look like a long spring are cheap and work well, just bend slowly and a little at a time.
And when running gas through copper, all you connections must
be flared, no compression fittings!
Soapy water sprayed or brused on the connections is an easy way to check for leaks. Bubbles show you have a leak.