Despite often being called “pellet grills,” they still cook via indirect heat, as opposed to flame, and are better seen as a smoker. They’re excellent for smoking briskets, chicken and turkey, salmon and other fish, but maybe not for steaks, as you won’t be able to get the same crispy, browned sear they call for, and that you can get with an open-flame grill.
Pellet grills preheat quickly, so you can start cooking almost immediately, and the pellets are available in a number of woods, for different smoke flavors. The smoke has a subtle wood-fired flavor with less of the acrid flavor that comes from standard wood or charcoal. For the maximum smoke flavor, it’s best to cook at a temperature lower than 250 degrees, while higher temperatures cook faster with less smoke.