1.   A good gas grill has temperature gauges and meters that measure how much propane gas remains in the system, experts say.

2.   Grill must have a cover.

3.   High-priced grills usually have multiple burners.

4.   Many grills have a catch basin of some kind to hold drippings and debris that fall from the grill.

5.   Most gas grills sold now have more than one burner so you can heat one side of the grill at a time.

6.   Most grills have a metallic bar or grid above the burner that catches drippings from cooking food and produces smoke that flavors the food.

7.   The grill has to be covered, to seal in the smoke flavor.