Cookin' with gas: Professor earns patent for flameless industrial oven

https://techxplore.com/news/2023-04-cookin-gas-professor-patent-flameless.html

"combustion: natural gas oxidizes, reacts with oxygen, melts aluminum, cast iron, and glass... chamber 1 cubic ft... >1,000°C, faster heating increase productivity, thorough heating reduces nitrogen oxides and reduction in fuel consumption with gases exhausted at lower temperature... impingement oven prototype features 25 air nozzles and 16 natural gas nozzles... retrofit ovens already in use"