The JennAir downdraft system pulls cooking vapour down through the cooktop instead of up into a hood, which means ductwork under the counter and a blower assembly that a conventional range simply does not have.
Most of the JennAir range is built in — cooktops, wall ovens, column refrigeration — so servicing them well is as much about careful access as about the repair. We do that work regularly across DC, Bethesda and Arlington.