How often should you change your HVAC filter?

Every 3 months.

How to do it

Check the filter monthly and change it when it looks dirty, at least every 3 months. Note the size printed on its edge, and fit the new one with the airflow arrow pointing toward the unit.

Why it matters

A clogged filter makes the system work harder, costs more to run and shortens its life.

Recommended interval: every 3 months, per ENERGY STAR (U.S. EPA).

General guidance for a typical home; the manufacturer's instructions come first.

Get reminded when it is due

Paper works until it goes on the fridge and stays there. The Househand app keeps the same checklist and tells you when each job comes due, based on when you last did it.

  • A reminder when a job is due, not on a fixed date
  • A history of what you did and when
  • The same schedule as this site, optional tasks and all

The app is not in the stores yet. Until it is, track your house in the browser: same schedule, same rules.

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