Your Breckenridge Deluxe 36" Vent Free Firebox needs a liner. White Mountain Hearth offers several liners to customize your look. The Black Reflective liner features a beautifully reflective presentation for a more contemporary look in your fireplace. It will look great with a traditional log set or when used with the Loft Burner. It is for use in the Breckenridge 36 Deluxe Firebox only.