How to install a dryer vent in a concrete block wall

Updated February 21, 2017

A dryer that does not self-condense its exhaust will need a vent running from behind the appliance to expel the exhaust outside the home. A dryer on a home's ground floor means you probably will have to drill a hole through a wooden wall to set up an exhaust vent. But if your laundry room is in the basement, you probably will have to contend with a concrete block wall. Concrete requires a bit of chiselling to get through, but as long as the right equipment is used, you can set up an exhaust vent for the dryer.

Measure up 12 inches above the soil grade outside the home with a measuring tape. Mark this spot on the wall. Find the shortest distance between the vent on the back of the dryer to a spot above the mark for the spot marking the 12 inches above soil grade level. Mark this spot.

Check the outside of the home for any obstructions that might be too close to where the second mark was made on the wall inside the home. Remeasure and mark, if necessary, for a vent that can lead outside the home without obstruction. Drill through the wall at the second mark using a masonry bit fitted into a drill.

Draw a 4-1/2-inch circle on the wall around the drilled hole.

Drill closely spaced holes around the circle's circumference.

Butt a chisel against all holes in and around the circle and hit the chisel with a hammer. Break the concrete until a wide hole for the exhaust vent has formed.

Fit the venting into the hole. Attach the hood to the wall using screws included in the dryer's vent kit.

Cut a length of straight duct pipe that reaches from the back of the dryer to the hole in the wall.

Crimp each end of the straight duct pipe with a pair of pliers. Stick a venting elbow onto each end of the straight duct. Seal the seams with foil duct tape.

Stick the elbow onto the dryer and attach the strap included with the dryer's kit with a screwdriver.

Attach the ductwork to the wall using the metal straps that come with the dryer's kit.

Things You'll Need

  • Measuring tape
  • Drill
  • Masonry bits
  • Chisel
  • Hammer
  • Venting kit
  • Duct pipe
  • Duct tape
  • Screwdriver
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