previously had fabricated a locker that held 2-5lb tanks in lazerate and found we were going thru a tank a week while living aboard in Bahamas. Have since mounted a 20lb composite tank on the stern rail and even though it isn't very yachty looking it lasts us about 4 weeks. Wife bakes quite often and we use the grill almost nightly. Also carry a spare 10lb alum tank on stern rail. Found access to propane fills while traveling in out islands was limited. Sorry but no pics as boat on hard in Fl and we are currently summering in northern NY.