Installation is a core part of how a built-in grill performs. Clearances, ventilation, and access are not optional details. They determine how safely the grill runs and how easy it is to maintain over time.
Plan the enclosure as part of the system
Built-in grills depend on the island for airflow. Vent panels and spacing should be incorporated into the design early, not added after the fact.
Do not overlook service access
Routine maintenance is unavoidable. A well-planned installation makes it manageable rather than frustrating once the kitchen is finished.