Vermont Castings Outside Air Termination Cap h24.25 34” x 34” 34” x w18.9 34” x 34” 34” x 34” Fuel Type: Liquid Propane Liquid Propane Liquid Propane Weight: 215 lbs 215 lbs 215 lbs Maximum Heat Output: 65 With this Empire Large Log and Ember Kit you can make your gas firebox or fireplace even more realistic This outside air vent assembly is used as an outside hood and receiver for any 3" aluminum flex liner when using an outside air connection that is not part of a colinear wall pass through thimble This intake hood is made from 316T Stainless steel and can be used for any installation for any brand of stove where a 3" intake is required