These are the oldest of the 3 types and have been around for decades. As the name suggests, these use charcoal for heating purposes. Not only does the charcoal provide heat, it also adds to the distinct flavor. It is because of the flavor that people are willing to take more time to prepare and clean this grill than other types.
There are a few things to bear in mind for users of these grills. For those wanting to make brisquettes, be aware of that the fluid that is used to light up the grill can leave a foul taste in the meat if the fluid isn't completed burnt off before you begin cooking. One other drawback is the time required for the grill to cool down before you can clean it. The charcoal has to be replaced after 2-3 uses and the cleanup is usually messy.
2) Gas
Gas grills are the most popular type of grills right now. The two types of gas grills are natural gas and propane.
Natural gas grills give a large amount of heat at an even temperature. Cleaning up these grills is easy and with the new self-cleaning option they are as easy to clean as indoor ovens.
Natural gas grills require an electrical outlet to be hooked up to. This is usually not a problem because most patios have one. But it is something you should bear in mind while figuring out where to keep your grill. Only in a rare case can a grill be a fire hazard, but for most natural gas grills are the ideal choice.
Propane grills also produce a good amount of heat only a little lower than the ones by natural gas grills. These grills are more convenient because they are much easier to move around. That can be a nice feature when you want to move your grill around.
3) Electric
Electric grills are a relatively newer choice. In simplest terms, they are in electric ovens on wheels and have quite a few advantages. There is no need for fuel. You only need an electrical outlet and a cord to plug into it. Most models are self-cleaning, like many interior ovens. Exact temperatures can be achieved and maintained. One small downside is that due to a couple of these useful features, these barbecue grills can be a little more expensive.