Evelyn F Happy Valley , OR September 30, 2016 We used this grille for a unique application to vent an oven We installed an over-the-range microwave over a built oven, with a space between them, and this grille was the perfect part to allow the hot air from the oven to be drawn up into the microwave vent. Now I can use myoven on hot summer days without heating up my kitchen. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes