QuietCool QC CL-2250 Classic Whole House Fan

Another option for larger rooms, the two speed  QC2250. At 2463 cfm’s on high, this fan will really clear the heat out of larger rooms or small homes with area of 500 to 1500 square feet. The lower, quieter speed provides a 1829 cfm air flow at 199 watts. As with the PE QC1500, this fan can be used with a remote control, or hard wired. When you purchase this fan, you will receive everything that you need for installation; the fan, ducting, damper and grill.  Just cut a rough opening in a central location just under the attic, hang the fan from a rafter and connect the grill and fan with the provided ducting.  Turn on the fan in the evening when the temperature is cooler outside that inside and open some windows.  The fan will pull cool air through your home, draw the cooled air into the attic (cooling the attic as well) and out your preexisting gable vents.  The fan is ultra quiet, since it is remotely located. Power Consumption – 249 Watts high 199 watts lowAir Flow – 2463 cubic feet/minute high, 1829 lowVoltage – 120 VAC Sound level in room – .6 sones, 45 dbR value at closed damper doors – R 5 (closes magnetically)Ceiling rough opening 14.25” X 18.25″Grill – white Fits all Joist spacing. No framing neededShipping weight – 42 lbs.10 year warranty