Dryer Vent Cleaning in Birmingham, AL
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Step 1 of 3: Equipment
What cold nights do to a dryer vent
Every load of laundry pushes warm, wet air out through the vent to the outside. On a winter night averaging 35°F, that air cools fast against the vent walls before it makes it outside. Lint carried along with the exhaust sticks to those damp walls instead of blowing clear.
Over a season it builds into a partial blockage. Airflow slows, the dryer runs hotter to finish a load, and the lint sitting in the vent has more time near that heat.
- 35°F
- the average winter night, and cold vents catch damp lint
- 5 months
- November through March, the vent stays cold
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NOAA nClimDiv, 1991–2020 normals
- How often should a dryer vent be cleaned?
- Once a year for most households. If you run large loads often, or you have a long vent run with a lot of turns, check it more than once a year. Lint builds up along the way, not just at the outside hood, so a vent can be partly blocked even when the hood itself looks clear.
- Can I clean my dryer vent myself?
- You can clean the section behind the dryer and the outside hood yourself with a vent brush kit. What you usually cannot reach is lint packed inside the wall or ceiling where the vent run turns or travels a long distance. A contractor has rods and a camera to clear and check the full length of the duct.
- What are the signs of a clogged dryer vent?
- Clothes that take more than one cycle to dry, a dryer that runs hot to the touch, and a burning smell during the cycle are the main signs. You might also notice little to no lint in the trap even after a full load, or weak airflow at the outside hood when the dryer is running. Any of these on their own is worth checking, and a burning smell means stop using the dryer until the vent is cleared.