U.S. Government Federal law prohibits removal of this label before consumer purchase ENERGY GUIDE Boiler Natural Gas Slant/Fin Corporation {or L.P. Propane if Model(s) VHS-90 EP $0 equipped) Annual Fuel Utilization Efficiency 82.8 80.0 95.5 Least Efficient Most Efficient Efficiency Range of Similar Models = Efficiency range based only on natural gas boilers. = For more information, visit www fic.