A:Answer Hi Alicia- Thanks for viewing GE®! The temperature limits are 170F - 550F for both upper and lower ovens. No more shuffling dishes around or trying to figure out how long to cook a dish at a different temperature than recommended. The GE double oven cooks two dishes at different temperatures at the same time. Multi-tasking at its finest! If you need a vent system, check out our GE® 1.9 Cu. Ft. Over-the-Range Sensor Microwave Oven JVM7195SKSS equipped with cooktop lighting and four-speed, 400-CFM venting fan system to quickly remove smoke, steam and odors from the cooktop to keep kitchen air fresh and clean. Keep in touch. With so many choices, we are always glad to help make your shopping experience a bit easier! SUEatGEA