Grills, especially gas grills, are an equipment to be used with caution and care, as they may just put you in danger. Most of the times, fires are started by gas tanks of such grills.No further than November 17, a fire devastated the back porch of a house. It was started from a debris fire that was not completely extinguished and came dangerously close to three propane tanks for a gas grill that Robert Delphia was keeping on the porch. The pressure relief valve on one of the tanks activated, res.