Water Heater Gas Supply Line

ngiovas wrote:

ScottG wrote:
The gas line generally goes through the floor and down to a black iron pipe. You could disconnect it at the pipe and run a new line or simply use the approriate fitting to splice onto the old brass line and lengthen it.

I would like to connect to it where it comes up through the floor. The old one is the right length, but has the wrong fitting on the water heater end. I am just trying to figure out if I can buy this line, or if I need to make a new one. It seems like it is a pretty common connection.

There are lines used to make flexible connections to residential water heaters and furnaces but they aren't designed for the rigors of RV use - or at least, I've never seen them in one.
The safest bet is to make up a new line. Some old hardware stores still sell flexible 3/8's line by the foot. They may even be willing to flare the ends for you and direct you to the correct style of coupling. It bends pretty easy if done slowly and with care making sure to stop if it starts to kink.

EDIT: I see the old line takes a pretty sharp turn getting to the WH fitting. You shold be able to save that section and splice it back togeher. Or, you could use some brass fittings to make those sharp turns.