Dryer Vent Cleaning in Champaign, IL
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Cold vents make lint stick
Your dryer pushes out warm, damp air, and that air has to travel through a vent that runs cold most of the year. From December through February, nights here average 21°F, and the metal or plastic of that vent is just as cold as the air outside it. When the warm exhaust hits those cold walls, it cools fast, and the moisture in it doesn't stay a vapor. It turns damp, and lint sticks to damp walls instead of blowing straight through to the outside.
That buildup narrows the vent a little more with every load. Air moves slower, so the next load's exhaust cools even faster and leaves even more lint behind. Eventually the dryer is pushing hot, wet air into a vent that can't clear it, and that heat has nowhere to go but back into the space around the duct.
- 21°F
- the average winter night, and cold vents catch damp lint
- 8 months
- October through May, the vent stays cold
NOAA nClimDiv, 1991–2020 normals
- How often should a dryer vent be cleaned?
- Once a year for most households, more often if you run a lot of loads or the vent has a long run with several turns. A short, straight vent moves lint out fast and stays clear longer. A long one, or one with bends in it, traps lint at each turn and needs checking sooner. If drying times start creeping up before the year is out, don't wait for the schedule.
- Can I clean my dryer vent myself?
- You can clean the lint trap and the few feet of duct right behind the dryer, and you should do that often. The rest of the run to the outside hood is harder to reach and usually takes a brush and rod long enough to cover the full length. If the vent runs through an attic or between floors, a contractor can get to the sections you can't reach from either end.
- What are the signs of a clogged dryer vent?
- Clothes that take two cycles to dry when one used to do it. The top of the dryer or the vent hood outside feels hot to the touch. Little or no lint in the trap even though you cleaned it last load. A burning smell while it runs. Any of these means air isn't moving through the vent the way it should, and that's worth having checked.