Vacuum out old lint (and clean out nests) from the ducting. Connect the old dryer ducting to a 4-in. metal duct collar and insert it into the bottom of the new elbow. Install the elbow base by ...

If your dryer is in the basement and the basement is underground, run duct up the exterior wall and out the rim joist. Set the vent a minimum of 12 inches above the outside ground. Pro tip: Use no ...