The 18-inch round BBQ grill is designed for versatility. It typically features a charcoal or propane fuel source, giving you the option to choose between traditional charcoal flavor or the convenience of gas grilling. Charcoal grills are known for imparting a rich, smoky flavor to meats, while gas grills offer quick start-up times and adjustable heat control. Many 18-inch models also come with adjustable vents, allowing you to regulate airflow for better temperature control.