The Thule Hullavator Pro Kyak Carrier # TH898 take up approximately 28-1/2" of cross bar space. That being said, you will need at least 57 inches of crossbar space. For your 2014 Jeep Patriot, I recommend you use the Malone AirFLow2 Roof Rack # MPG216 with your factory raised rails. These bars are 58" long, 3" wide, and 1" tall and weigh 13 lbs. view full answer...
Looking at the Furrion 2-in-1 Range Oven with Glass Cover - 21" Tall - Black # FR37KR.
From the lowest rack setting to the top of the inside of the oven is 7.5 inches.
It is 16.5 inches wide and 14 inches deep.
It does have multiple levels inside for the rack to be placed. view full answer...