I'm no expert on this, but I did just switch over to natural gas from propane. I had a plumber run a line to the corner of the house outside the garage. The line was run from the meter. We also discussed t-ing it off the water heater, but the line from the meter was easier and the plumber was concerned that more volume was needed. The point of all of this is that you need to test that burner somehow before you go to the trouble of welding everything up. My brewstand has a larger gas line coming to it than anything else in my house. I'm not sure what the line to that stove looks like or if it shares the line to another appliance in your house. But, especially if you're planning on using more than one burner at the same time, make sure that line in your basement can handle what you want to do.
Doing my first NG brew in the morning. Very excited!