Gas grills burners represent a very important component of a gas grill, for the reason that they are used to light and maintain the fire to the desired intensity. Gas grills burners are included in a barbecue gas grill kit, so you do not have to buy them separately. In some cases, though, after a long time of usage, the gas grills burners may start to function incorrectly, and for this reason they must be replaced with new ones that match the type, size and characteristics of the old ones.