The QuietCool QC ES-2250 can help you slash your A/C related electricity costs by up to 90% and pays for itself faster than any other green energy product on the market today. The QC ES-2250 moves 2,255 CFM and is the perfect fan for homes that may feature additional fans in bedrooms; instead of a larger central unit, combine a QC ES-2250 with smaller individual bedroom fans for private, zoned control and watch your electricity bills go down even more! With an extermely efficient ECM motor, the QC ES-2250 uses only 115 watts and cools and ventilates up to 1,125 square feet. For vertical wall installations, order vertical wall adapter (part number: VA-1418). Recommended control: IT-30070 Electronic Countdown Timer