Jenni, NO grill should ever be used on a seat
Or anywhere else inside a boat...due to the risk of a grease fire if wake or anything else causes it to fall off a seat or tip over in the cockpit. Grills--except maybe a George Foreman electric one (but who wants to eat electrocuted meat anyway?)--should always be mounted to overhang the water when in use. Anyone who's handy with a drill can modify a tabletop grill to fit a rail or hull grill mount. Or, if you're not, mount one of the "fileting boards" (which you can also make, but you'd still have to buy the mount) and lash the grill sit on it.And while we're on the subject of safey...propane cylinders should never be stored below decks or in a locker. Magma sells propane storage "bags" designed to hang from rail or lifeline, but you can make your own using Sunbrella for a fraction of their price.