I started making my heat shields. 16ga Steel, 6" tall. I bent them around a corney keg. Then I came up with an idea on how to install the heat shields on my burners. I knew I needed the shields but I also wanted maximum coverage of heat across the bottom of each Keggle. I decided that if the heat shield was all the way to the edge (not connected to the burner) it could actually stick up above the deck and hold the Vessel from moving at all, because it would fit into the collar of the Keg. I also wanted protection from any flames licking up the sides of the Keggles. I tested the shield all the way around and found out that it doesn't work properly. There's not enough room for exhaust to escape, and it chokes the burner, flames escape and unburnt gas ignites below the burner. not good! So I made the shields go half way around and am working on an idea for them to vent the spent exhaust and have it escape in the rear of the Cart. Also I went with felt washers behind the shields to reduce heat transfer to the stand metal.