Flav-R-Wave. It sounds pretty magical, but what on Earth does it even mean?
Heat plate, flame tamer, heat diffuser. The names are endless. Flav-R-Wave is just Broil King's special word for their special part.
And Broil King's Flav-R-Wave system is actually pretty special. It covers almost the entire surface area underneath the barbecue. This means you're going to get more evenly distributed heat, and it will stop just about anything from falling below onto the burners.
Of course, with a job that big - these guys can't last forever. Lucky for you, they're reasonably priced, and replacing these parts will ensure the safety and security of your burners for years to come.