Place the chicken thighs on the grill grates, skin-side up, and let smoke for 1 hour.
Turn the heat up to 450°F, flip the thighs so they are skin-side down, and let grill, checking frequently. Once the skin is as browned and crisp as you like it, flip them back over so the skin is up, and temp the chicken. If it is at least 165°F, it is done.