Hi Phil Thanks for posting these ovens, The Jenn-Air down-draft Electric cook-tops were actually very good good and versatile cooking appliances, I have enjoyed mine.
Hi Jim, interesting article on cooking appliances from 1988, I loved to comments about how they thought that halogen surface elements were so great, as it turned out they offered almost no advantage over regular smooth top electric elements [ and have ministerially disappeared from the market, LOL ].
The difference between the Advantium ovens [ which are still made ] and these full sized Micro-Thermal-[ and sometimes ] Convection ovens is the lack of interior size and most of all they are not Self-Cleaning. The GE Advantum and other Over-The -Range and counter-top Micro-Convection can do some really good fast cooking , But they quickly become a huge mess and a fire hazzard because of all the impossible grease filled areas, as a result few people use them much at their full potential.
By contrast in my TD wall oven I often warm up left overs without even covering them because if something pops and sprays food on the oven interior I will never have to clean it, as it will be burned away the next time the SC cycle is run.