Buy natural gas grills if you want to save money on your gas bill. Even though they require more fuel, it is still a lot cheaper than liquid propane. Natural gas also burns cleaner and creates less grime than liquid propane grills. Purchasing a natural gas grill means you will be running the gas from a pipeline usually from your home.
S-Series CSL42NG 42" Natural Gas Grill with Four x 11 Gauge Stainless Cast iBurners, 1 RapidSear Burner, 1 Infrared Burner, 115,000 BTUs, Back Lit LED Knobs, 1275 sq. in. Grilling Surface, Interior Hood Lights, and Stainless Steel Hood in Stainless Steel