How should a grill be properly ventilated?

Proper ventilation of a grill is crucial for safe operation and ensuring optimal performance. The correct answer emphasizes the importance of allowing air to circulate freely around the grill without obstructions. Good airflow helps to maintain a consistent temperature and prevents the build-up of harmful gases such as carbon monoxide. If a grill is not ventilated correctly, it can lead to hazardous situations, including fire risks or carbon monoxide poisoning.

In contrast, options that involve placing the grill in a closed garage, using a fan directed at it, or covering it with a tarp all present risks. A closed environment like a garage restricts airflow and can trap toxic gases. While a fan might seem beneficial, it can actually interfere with the grill's normal function and still doesn't replace the need for adequate ventilation. Covering the grill while it's in use can obstruct airflow completely, leading to insufficient oxygen supply for combustion, which is dangerous. Therefore, ensuring unobstructed air circulation around the grill is the safest and most effective way to ventilate it properly.