Even though this forum is for discussing plumbing solutions, gas is one thing that I don't like to comment on other than to say that it can be very dangerous. I don't mind talking about sizing, or what you should install, but I'm very hesitant about encouraging anyone without plumbing knowledge to tackle some of these things.
For example: I once picked up a motor home from the dealer that had worked on the propane gas. I was supposed to sleep in it that night at my father-in-laws. I told the dealer I could smell gas. He laughed and told me it was fine. I drove the short distance to my FIL's home and explained to them there was a gas leak, and nobody was sleeping in the motor home that night. They also laughed and proceeded to light up burners on the stove to "prove" to me that I was wrong. As I was backing out of the door, they dropped the oven door down and
BOOM!!! Flames went past my brother in law in a big explosion. I went to the outside faucet and hooked the hose up to put out the fire. $6,000 worth of damage to the motor home in seconds. My brother in laws hair went from straight to curly with one blast of the explosion. How much fun!
I saw this on the side of the road in Oregon. 2020
At least my my father-in-laws, I was able to put the fire out with a garden hose.