A double oven appliance having an upper and lower oven positioned below the upper oven along a vertical direction such that a gap is defined between a top wall of the lower oven and a bottom wall of the upper oven. A bracket having a mounting platform positioned within the gap and spaced from the top wall of the lower oven along the vertical direction. The double oven appliance further including a circuit board coupled to the mounting platform such that the circuit board may be spaced from the top wall of the lower oven along the vertical direction. Further, the circuit board may be cooled by a cooling medium flowing across the circuit board.