I bought a standard land based portable grill that runs off of the 2 pound propane bottles. I got exhaust pieces from an auto parts store . They sell several different diameters in short 6 inch sections. I got one that slips inside of another. Permanently mounted the not to the outside rail of the boat using, of course, a muffler U bracket. The other I tacked onto the base of the girl. When I want to use the grill i slide the grill onto the mounted pipe. This keeps the grill outside the boat. I can then remove it when finished... It turned out pretty nice...