ENERGY GUIDE Estimated Airflow Yearly Energy Cost 4,548 $ 1 1 Cubic Feet Per Minute v = The higher the airflow, the | more alr ths fan wii move ! 334 = Airflow Efficiency: 115 Cubic Cost Range of Similar Models (19° 847) Fest Per Minute Per Watt = Based on 12 cents per kWh and 8.