Dryer Vent Cleaning in Madison, WI
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Step 1 of 3: Equipment
Cold cuts the vent's ability to clear itself
Your dryer pushes out warm, damp air, and from October through May it's venting into a duct that sits in cold air most of the day. On a night near 14°F, that air cools fast once it hits the vent, and the moisture in it turns to dampness on the walls of the duct. Lint doesn't slide through wet metal. It sticks.
Over a winter, that buildup narrows the path the air has to take. A vent that's supposed to carry moisture and heat straight outside starts holding onto both instead.
- 14°F
- the average winter night, and cold vents catch damp lint
- 8 months
- October through May, the vent stays cold
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NOAA nClimDiv, 1991–2020 normals
- How often should a dryer vent be cleaned?
- Once a year is the standard the vent itself asks for, no matter who lives in the house. Lint builds up along the whole run, not just in the trap, and it narrows the path air needs to escape. A vent that cannot vent makes the dryer run hotter and take longer to dry each load. A contractor can tell you if yours needs it sooner based on the length and shape of the run.
- Can I clean my dryer vent myself?
- You can clean the parts you can reach, but that is usually not the whole vent. Pulling the dryer out and vacuuming the first few feet of duct and the outside hood helps, and it is worth doing between full cleanings. The lint that collects deep in a long or bent run needs a brush and rod built for the job to bring it out. A vent that runs up through a wall or across an attic is hard to reach and easy to damage from the wrong end.
- What are the signs of a clogged dryer vent?
- Clothes that come out hot but still damp is the clearest sign. Others are a dryer that takes noticeably longer than it used to, the outside of the dryer feeling hot to the touch, and little lint at the outside vent hood when the dryer is running instead of a strong flow of air. A burning smell during a cycle means lint is heating up somewhere it should not, and that is worth having looked at right away.