Most grills feature a primary cooking area (the main grate) and a secondary cooking area (additional racks). In a pellet grill, there’s less difference between the two grilling areas because it mainly cooks by indirect heat, so the temperature is the same throughout the grill. It’s best to pay attention to a pellet grill’s total cooking area because it is the sum of the primary and secondary cooking areas.
Although these are marketed as grills, they do much more, including baking or roasting. Because they heat by convection, you might not get the grill marks that a gas or charcoal grill will give you, but you also won’t have the flame-up problems. While many pellet grills offer high cooking temperatures, the maximum depends on ambient temperature and wind. Many users wrap their grills in special insulating covers to help maintain heat, reduce fuel use, and reach the higher temperatures they desire.