How to Have Cross Ventilation in a Single-Window Room

Read the manufacturer's installation instructions for the ceiling fan. Turn off the power to the circuit breaker or fuse. Remove the current light fixture by unscrewing the nut or screws in the fixture. Slowly lower the fixture, and twist off the plastic caps on the wires, thus disconnecting the power source to the light fixture.

Remove the previous electrical box from the hole in the ceiling. Install a 1/2-inch-thick pancake electrical box to support the ceiling fan. Center the electrical box on the joist in the ceiling, and outline the pancake electrical box with a pencil on the ceiling. Cut out the outline drawn on the ceiling with a drywall saw.

Thread the electrical wires from the ceiling through the hole in the pancake electrical box. Place the pancake electrical box into the hole in the ceiling. Use the drill to attach the electrical box tightly to the joist with two 1 1/2-inch hex screws. Carefully wrap the copper wire around a grounding screw in the pancake electrical box.

Apply urethane-based adhesive glue to the back of the ceiling medallion. Feed the wires through the middle hole of the ceiling medallion. Position the ceiling medallion dead-center over the pancake electrical box. Fasten it to the joist with four finishing nails. Hold the ceiling fan’s metal plate up to the pancake electrical box, and pull the wires through the center hole. Mount the ceiling fan’s metal plate to the electrical box, using two 1 1/2-inch screws.

Assemble the ceiling fan. Place the ceiling fan parts on the floor. Pull the wires from the motor of the ceiling fan through the center of the canopy. Put the canopy on top of the motor. Gently feed the wires through the hollow down-rod pipe. Pass the down-rod pipe through the top of the motor. Tighten the locking screw to the side of the pipe with a wrench.

Hook up one side of the canopy to the ceiling plate. Use twist-on wire connectors to join the two green wires to the bare copper wires. Repeat this process by connecting the two white wires to the two black wires. Lift the ceiling fan into position, and secure the canopy to the ceiling medallion with two canopy screws.

Attach the fan blades to the blade irons with the included brackets. Fasten the blade irons to the motor. Install the light shades. Screw in the light bulbs. Turn the circuit breaker back on, and test the ceiling fan.