Vetus Louvered Air Suction Vents-ASV150 - In order to burn 1 lb. of fuel - ca. 0.14 U.S. gallon a quantity of 16 lbs of air is needed - ca. 438 cu.ft. at 1 atmosphere. Free Flow Area in.2.94.2 - E.3-1/2 inch - A.35 inch - B.34-1/4 inch - C.7-713/16 inch - D.7 inch.
