Once a year is the baseline. Twice a year if your household runs heavy laundry, has pets, or the vent run is unusually long. The harder question isn't the frequency — it's how to actually track it without losing months.
The yearly baseline assumes an average household: two people, a few loads of laundry per week, a vent run under 25 feet, no pets. Push past any of those and the interval should tighten.
The yearly recommendation gets quoted everywhere, but it's a floor. Manufacturers, the U.S. Fire Administration, and HVAC professionals all recommend yearly as the minimum interval. That doesn't mean more frequent cleaning is wasted.
Lint accumulates roughly in proportion to use. Twenty loads a month puts roughly twice as much lint into the duct as ten loads. Larger families, towel-heavy households, and homes with shedding pets all generate more lint per load than the baseline. The annual recommendation assumes average use. If your use is above average, your interval should be shorter.
These override whatever interval you've set.
If clothes routinely need a second run to come out dry, the vent is restricted. That's the most reliable single signal that cleaning is overdue.
Restricted airflow makes the dryer run hotter. A noticeably hot exterior surface means heat is staying in the unit instead of venting outside.
A faint burning smell during a load is a fire-risk warning. Stop using the dryer, unplug it, and clean the vent before running another cycle.
Most people who skip dryer vent cleaning aren't ignoring the risk. They genuinely lose track of when they last did it. Was it last spring? Two springs ago? You can usually tell within a year, but not within a month.
That's the gap a calendar reminder doesn't bridge well — a single annual alert is easy to dismiss, and it doesn't follow up if you don't act on it. See the full dryer vent cleaning reminder guide for the setup. The pattern is simple: a recurring email on the anniversary of your last cleaning, plus follow-ups until you mark it done.
Set yours now — pick your interval and your date.
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Once a year for an average two-person household. Twice a year for families of four or more, homes with pets that shed, or vent runs over 25 feet. Some HVAC professionals recommend every 6 months as a universal standard, but yearly is the baseline most manufacturers suggest.
Survey data suggests most households clean theirs every 2–3 years, and a meaningful share have never cleaned it. That gap between recommended (annual) and actual (every 2–3 years) is exactly where lint accumulates to dangerous levels.
If clothes need a second cycle to dry, the laundry room gets unusually hot during a load, or the outside vent cap doesn't puff air strongly when the dryer is running, you're overdue. Don't wait for these signs — they appear after the lint has already built up.
No. The lint trap catches about 60% of lint, but the rest builds up in the duct between your dryer and the outside vent. Emptying the lint trap after every load is important, but it doesn't address the vent itself.
Not if any of these apply: more than 3 loads of laundry per week, pets that shed, a vent run longer than 25 feet, vent that exits through the roof, or you live somewhere humid. For those households, twice yearly is a reasonable safety margin, not paranoia.
The dryer being new doesn't reset the vent. The vent duct is part of your house, not the appliance. If the previous owner never cleaned it, you may be starting at year 5 of accumulated lint. Clean it within the first few months of moving in.
Set a recurring reminder for your dryer vent. Free, no account, follow-ups until you mark it done.
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