Dryer Vent Cleaning in Frederick, MD
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Step 1 of 3: Equipment
Cold winters make the lint stick
Your dryer pushes warm, damp air out through the vent. From October through April, that vent runs through a cold house and cold air outside it, and on winter nights here that average 26 degrees, the air cools fast once the dryer shuts off. The moisture in it settles on the vent walls, and lint sticks to the damp surface instead of blowing through to the outside.
Over a winter that buildup narrows the vent. Air moves slower, so the dryer takes longer to dry a load and runs hotter doing it. A vent packed with damp lint is also a vent that can catch fire.
- 26°F
- the average winter night, and cold vents catch damp lint
- 7 months
- October through April, the vent stays cold
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NOAA nClimDiv, 1991–2020 normals
- How often should a dryer vent be cleaned?
- A good rule is once a year. Lint builds up along the whole length of the vent, not just in the trap, and a year is about how long it takes for that buildup to start blocking airflow. If your dryer runs more than a typical household's, a contractor can tell you whether your vent needs a look sooner.
- Can I clean my dryer vent myself?
- You can clean the lint trap and the first few feet of duct behind the dryer yourself, and it is worth doing that part often. The rest of the run, especially where it bends or passes through a wall or roof, takes a brush system built for the full length of the vent. A contractor can also check the vent hood outside to make sure it opens and closes the way it should.
- 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 musty smell in the laundry room are the main ones. Lint collecting around the outside vent hood or very little air coming from it when the dryer runs is another sign. Any of these on their own is worth a look, and more than one at a time means the vent needs attention soon.