I suspected it may be a Dacor downdraft as it is the only manufacturer that expressly says that its downdrafts are designed for behind a full range. Of course they say they are only for behind Dacor ranges, perhaps this is to encourage purchase of their ranges or to prevent any liability issues, or both. I do wonder if it would be difficult to find an installer/contractor who would install a Dacor downdraft behind a non-Dacor range.

marv Downdrafts by nature are inferior ventilating systems than overhead - Not familiar w/your JA model but more than likely it is the downdraft in general that is not effective. Many variables to your changing that out - Best scenario for effective ventilation is a short straight ducting to the exterior - Each time there is a bend in ducting it diminishes the CFM's of the unit - same for additional footage of ducting Is the existing cooktop on an exterior wall? is there cabinetry above the cooktop, if so what, can it be removed? Cost will depend on the complexity of getting overhead into your current configuration as well as cooktop choice & hood choice. My suggestion to you would be to post a pic of your current set up and ask same ?'s you will likely receive more concrete advice & options. Good luck

I had the same problem in a 10+ year old unit. Had a Dr. Appliance person come out 3 times. Then found another fellow who specializes in thermador, subzero, Bosch repair who finally fixed the root problem. It needed to get the motor changed. In our case it was just one side that wasn’t working but I got both sides done. That was maybe 5 years ago and no problem since. I had been close to replacing the entire unit but he said that the unit is good one and should keep it.

Selling in 3-4 years is a hard one. At five years we always say please yourself because in five years, you'll be selling a five year old kitchen. 3-4 years is not new, but it's not quite old either. I don't know as much about ranges, but the popup Dan showed is shown with a range and the height is superior to most other popups I've seen. Check the reviews for the motor issue, and make sure to construct the cabinet so that servicing it isn't a major deal. Perhaps that means putting the range on some kind of skid platform that will protect the floor if it's pulled out. KitchenAid and Jenn-Air are made by the same company, so I'd assume that the KA is a repackaged Jenn-Air with some trim or feature differences. I understand and agree about not doing a big redesign if you're planning to move, but who knows? You might be staying ten years, unexpectedly. You have to live in the meantime. I wouldn't worry about induction on resale. Someone fussy about the kitchen will re-do it anyway. Someone not fussy will live with it. If there isn't much market penetration of induction in your area when you go to sell, make a couple of display signs. Shows that it's induction, not smooth top radiant, and touts the fast boil, easy cleanup, safety, etc., and also make sure that it's noted that the location is plumbed for gas, so changing it out shouldn't be a problem. Just convince your husband. That sounds like the real sticking point. ;)