Wow! a seemingly non-boat non-house
regulator in a
boat? Is there, somewhere out of the picture, the ABYC standard solenoid cut-off for gas flow so you can isolate the bottle from a switch in the
galley? Having seen one questionable item in the gas system, I would recommend a review: Pressure guage for testing leak-down after the solenoid is shut off, solenoid,
regulator, one hose with no joints reaching the
stove, or if multiple uses, all the joints in the gas bottle
storage box that vents off the
boat, and hoses in good shape. Hard-wired gas detactor on the
cabin sole by the
stove. Whatever the composition of the gas, it's more dense than air, and a failure outside the vented box means a boat full of explosive gas/air mixtures. Inspect that system!