Consumers use propane for heating and cooling homes, heating water, cooking, refrigeration, drying clothes, barbecuing, lighting, and relaxing in front of the gas fireplace.  Because propane is portable and clean-burning, it is used by millions of recreational vehicle owners and camping enthusiasts. Gas grills, outdoor gas lights, mobile home and RV appliances, generators, and greenhouse heaters can all be fueled by propane. Millions of people are already using propane to safely and economically fuel heaters for their swimming pools, saunas, patios, and whirlpools. Because they are easier to use and better for the environment, gas grills are becoming ever more popular with the American public.