A whole-house fan pulls fresh air through every room that has an open door or window and sends it out through the attic.
The attic must be vented and doors or windows must be open in the rooms below. Locate the fan in the ceiling of a top-floor hallway. The fan can rest on top of an exposed joist or frame an opening.
In winter, make sure the fan's shutters close tightly, and place insulation over the fan so the house won't lose heat.
About 8 hours to run cable and install a fan with a wall switch (not including preparing a path for the cable)
Voltage tester, stud finder, tape measure, drywall saw, drill, circular saw, hammer, fish tape, nonconductive ladder, screwdriver, long-nose pliers, lineman's pliers, strippers
Splicing and connecting wires to terminals, installing boxes, running cable through walls and ceilings, cutting and attaching boards
Find a power source and make sure the fan does not overload the circuit. Spread a drop cloth on the floor. Enlist a helper for lifting and placing the fan.
Whole-house fan, remodel box, switch, electrical boxes with clamps, three-wire cable, wire nuts, electrician's tape
Cut through the ceiling board and pull back insulation to create a channel for air from the house. Mount the fan on top of ceiling joists. The fan draws air from the house and pushes it out through gable, roof, and eaves vents.
At the switch hole, clamp cable to a remodel box and install the box. For the two-speed switch shown above (provided by the fan manufacturer), mark the white wire with black tape and connect it to the black switch lead. Splice the red wire to the red lead and the blue lead to the black wire.