Installation: 28" 32" Recessed fireplace, 28 or 32W x 22"H x 6.7"D, electric fireplace inserts for existing fireplace, three different models to choose from 28" 32", Note: Please measure the size of the fireplace mantel before purchasing. Simulated flames: The flame bed of the electric fireplace heater is designed with simulated firewood, with burning brick walls on both sides, 1-6 levels of flame brightness, and the dancing flames create the effect of a real fireplace