James Nipper writes:

For many years, I
used a gas grill from Sears (small grill, low-cost) that used
briquets that heated up and helped with the cooking.

Briquets were baloney to make people think a gas grill would work like a
charcoal broiler. The temperatures, radiation, and distribution are quite
different. Probably a health hazard to be putting all those particulates
of silica and alumina from "lava" rocks into your lungs, besides. Good
riddance.