Amazon.com has a Bionaire BW2300 Twin Window Fan with Remote Control for $39.99 with Free Shipping.
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- Electronic control with LCD screen and remote control; three speeds n
- Thermostat turns fan off/on to maintain selected comfort level n
- Fits double-hung, vertical slider, and casement windows 24 to 37 inches wide n
- Extenders permit custom fit; 13 inches high overall, with 8-1/2-inch fans