Gas grills are outdoor cooking appliances that use propane or natural gas as fuel. They typically feature a metal cooking surface and burners that provide even heat for grilling food. Many models come with additional features like side burners, rotisserie kits, and temperature gauges, making them versatile for various cooking styles. Using a gas grill is convenient and efficient, as it heats up quickly and allows for precise temperature control. They are popular for backyard barbecues and gatherings, offering a clean and easy way to cook meats, vegetables, and more without the smoke associated with charcoal grilling.