The Regal™ QS 590 Pro IR with iQue™ Technology features 625 sq. in. total cooking space including the stainless steel warming rack, solid 9mm stainless steel cooking grids, stainless steel Flav-R-Wave™ cooking system, 5 stainless steel Dual-Tube™ burners, stainless steel side shelves, illuminated control knobs, and an enclosed cabinet base. The powerful infrared side burner has a solid 9 mm stainless steel cooking grid and aluminum body.