Empire Innsbrook Medium Clean Face Direct Vent Gas Insert | DVC26INEmpire Innsbrook Clean Face Direct Vent Gas Insert Available Sizes The Innsbrook Clean Face Direct Vent Fireplace Insert is available in multiple sizes to accommodate a wide range of existing fireplaces, including: Innsbrook Large DVC28IN Innsbrook Large DVC31IN Upgrade Your Wood Burning Fireplace with Efficient Zone Heating A Direct Vent Fireplace Insert transforms your existing wood burning fireplace into an efficient, gas fired heat source designed