Empire 37" 25,000 BTU Beige Millivolt With Thermostat Control, Natural Gas Direct Vent Wall Furnace h11.5 000 Btu Millivolt and Intermittent Fits In:Glass & Rock Configurations 000 Btu Millivolt and Intermittent Pilot versions may be installed in bedrooms Faux Log and Glass Crystals: Customize the look with included glass crystals and faux log set for contemporary or traditional styles Specifically designed for areas where flues or chimneys are not available or cannot be used Center of Vent to Nearest Outside Corner of Building or Obstruction 24" Center of Vent from any Opening through which Flue Gases Could Enter a Building 9" Bottom of Vent above Grade 12" Edge of Vent to Nearest Projecting Surface 6" Vent Projection from Outside Wall 5" Center of Flue to Floor Covering 19 3 4" Safety Control Pilot and Main Burners include Automatic Shut off Warranty