I run charcoal on my pontoon. Magma grill. All stainless. Old style with removable lid, rather than the newer styles which have the lids hinged.
Lives on the boat, but has a second mount for storage and trailering off the stern. Mounted for use off the front of my fenced area, and is accessed and utilized from the foredeck. Mount is an expandable screw style with large wing-nut handle, designed to fit in a standard recessed deck mount rod holder socket.
It is only used on the foredeck, which is about 18' away from my fuel tanks, batteries, and motor, with full open air in-between. No worry about fire onboard, but there is a marine extinguisher mounted within arms reach of the grill. Extinguisher is visible in picture 2 and 3.
I made mounts out of aluminum pipe, and can swivel the grill inboard when needed, and then move outboard over the water for use. When the handle is snugged down the grill is solid mounted and will not move until mount is released. Have only dropped a couple of things to the fishes:tape:
Grate screws down and adjusts via a center 1/2" threaded post. Has about 4" of travel. Lid is tethered to base, so no chance of dropping it overboard. Plenty of vent adjustment via the center lifting knob on lid.
Screaming hot to dampered down for low and slow. One load of charcoal will run for almost 4 hours when vents are closed, as it is not capable of complete closure on bottom vents, but lid vents can be 100% closed. It takes a bit of getting used to, but we have done ABT's, kabobs, steaks, chops, chicken, burgers, brats, etc.
Love it.
Sorry about the sideways pictures. Not smart enough to figure that out.