Better quality grills have air vents to control cooking temperatures. When using a charcoal grill, ashes need to be disposed of regularly. They ignite quickly, normally with a push-button lighter integrated into the grill. After about ten minutes of preheating, you're ready to cook. The smoked flavor of charcoal grilling can be replicated to some degree by adding wood chips.
Gas burns cleaner and is less expensive per use than charcoal.
A standard size tank of liquid propane holds 20 lbs. of fuel, but don't be surprised when you pick it up if it feels like it weighs 40 pounds because propane gas is heavier than air. With the burners on high, a full tank lasts about 15 hours. Cooking at average temperatures, you should get 30 to 40 meals per tank. Electric grills must be near an electrical outlet. If you live in an apartment or other area that cannot accommodate charcoal or gas, you can still cook out with an electric grill.