Whole House Fan
Your review: Works very well pulling the cool night air into the house. Turn it on, wait an hour of so and the house is considerably cooler. The low speed is quiet enough to sleep while the fan is on. I would recommend a timer, saves the hassle of turning off in the middle of the night. The fan assembly appears to be well constructed. It's been in operation 4 months so a little early to judge from a reliability perspective.