Traditionally, flexible plastics hoses were used to vent clothes dryers. However, these did not support their weight. They sagged and lint collected in the low areas, creating a fire hazard. Rigid sheet metal piping is the safer alternative and is not difficult to install. A powered vent for a dryer adds a fan that helps push condensation and air out of the vent more quickly, improving the efficiency of the dryer. A powered vent is particularly useful in a home with a venting system that is longer than the norm.
You will need:
• Sheet metal piping
• Powered dryer vent hood
• 90-degree sheet metal pipe elbow
• Straight sheet metal pipe elbow
• Foil tape
• Wood screws
• Caulk gun
• Silicone caulk
• Four-inch hole saw
• Coat hanger
• Tape measure
Step 1: Unplug the dryer. If a vent is being replaced, the new vent can be installed in the same spot. For a new installation, identify a location for the dryer vent. If your dryer is on the main or second floor of the home, a hole must be cut through a wall. If it is in the basement, you can drill into a wood plate located in the foundation of the house. Drill a very small hole in the desired location and insert an unwrapped coat hanger into it. Check the hole to make sure there is no wiring or other obstruction. Inspect the exterior of the wall to verify that there are no obstructions.
Step 2: Drill a four-inch diameter vent hole from inside the home. Use the hole saw to cut a hole in the corresponding area outside the home. The dryer pipe will be fed through the inside hole to the hole located outside the home.
Step 3: Use the screwdriver and wood screws to attach the vent hood where the hole is located on the exterior of the house. A foot-long pipe should come attached to the hood and this should be fed through the hole to the inside of the home. Caulk around the hood to create a seal.
Step 4: Go inside and attach the 90-degree elbow to the end of the vent pipe coming from the hood. Attach the dryer vent to the other end of this elbow, running it to the dryer.
Step 5: Attach a metal pipe elbow to the dryer exhaust hole and connect the vent piping to this.
Step 6: Attach the piping to the elbows with the clamps, tightening each clamp until the area is secure. Seal all joints between pipe sections with the foil tape.
Step 7: Push the dryer into place, level it, plug it in, and turn it on to make sure the exhaust flows correctly.