Timer....obvious but I never though of it. I think on my new to me boat it might bear examination. I have a Weber Q100 (weight 30lb) mounted on a 1/4" aluminum plate on a magma grill holder-stuck into a heavy rod holder, also on the stern a homemade 10" 22,000 BTU cooker set up for 16" WOC on top, different notched brackets for 11in fry pan, 8" stock pot. I used a 12 in diameter commercial very old aluminum stockpot (e-bay) cut down to build the cooker. Really thick aluminum. Now the gas feed has a temporary quick disconnect to feed either the grill or cooker, not both at once, again a rod holder.. The switch is in the galley, the solenoid at the tanks in the lockers on the 02 level below and at the back of the bridge. Have one gas line going to galley the other to the stern designed to pull out and plug in. Sniffer in bilge, alarm in galley. Had a sun-brella cover made for the cooker. A timer would be a worthy addition.