I have a grill2go Its similar to the road trip mentioned above, bought it a few years ago. I can do at least half dozen meals from a 1lb tank and have a few of those then I have the adapter to connect to 20lb tanks and have two of those. I filled up a 20lb tank a couple years ago and cook out several weekends in the summer and do at least one or two family reunions and that one 20lb tank is still going. I could probably last a year if it was my only means to cook.