SteveU, there is the nozzle design that we all know. Minimal amount of material that is exposed to a large sized hot spot. The lonely soldier fighting the forest fire all by himself. Ouch! Soon to tire…
The fire plate, I renamed “oxidation plate”, is a large plate, mass, that has a better chance to face the fire. A hole in the wall, so to speak. Now there is an army to fight the forest fire. Heat sink. Heat dissipation. Of course armies can also loose the war.
I choose the word soldier because they are common people like the material I like to work with.
Pederick gave a lifetime warranty for the fire plates used in his producers. Of course they were heavy. So heavy that the weight of one of his gas producers broke the rear axle of a politicians fancy car or so the story was told.