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Guides / Heating and cooling

Filters and maintenance

A clean filter helps the system run less.

4 min read

A dirty filter makes your heating and cooling system work harder. Regular checks keep it efficient.

Simple habits

  • Check the filter monthly during heavy use; replace it when it looks dirty, or at least every three months
  • Keep outdoor units clear of leaves and plants
  • Have the system checked by a professional as the manufacturer recommends

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