Residential HVAC Maintenance 101

Humidifiers

HVAC humidifiers are a great way to add moisture to dry winter air, but they require basic maintenance to work properly. Here’s what you need to know:

  • Humidifier Pads: These absorb moisture as air passes over them, and they need to be replaced at least once a year, preferably in the fall before you start using the unit.
  • Maintenance Steps:
    • Replace the pad every fall. Order a few pads in advance so you’re prepared when the time comes.
    • Clean the unit by wiping down the inside and checking for leaks.
    • Adjust the damper: There’s a small arm (damper) that lets you switch between "summer" and "winter" settings. Adjust it according to the season.
    • Don’t overdo it: Avoid cranking the humidifier all the way up. This can lead to excess moisture, potentially causing issues in your HVAC system.

By following these steps, your humidifier will work efficiently and keep the air comfortable in your home.

For more detailed information on humidifiers and maintenance, check out our in-depth guide.

Typical Residential HVAC Humidifer

Air Exchangers (HRV/ERV)

Modern homes built post-2010 often come with air exchangers—devices that bring fresh outdoor air into your home and remove stale indoor air. These are especially important for energy-efficient homes that are sealed tightly to prevent air leaks.

  • When to Use: Run your air exchanger mostly in the winter when all your windows are closed, and the home is sealed up tight. You won’t need to use it as much during warmer months when ventilation is naturally better.
  • Filter Maintenance:
    • Remove and rinse filters 2-3 times per year. You’ll typically find two filters—be sure to check the direction they are installed before removing them. There are arrow indicators on both the unit and the filters to help guide you.
    • Soak the main filter core in warm water with a bit of dish soap (like Dawn) for about 20-30 minutes once a year. Follow the manufacturer’s cleaning instructions carefully.
    • Dry the filters before placing them back into the unit.

Additional Tips for Air Exchangers:

  • Regular maintenance ensures the unit is removing stale air and introducing fresh air efficiently.
  • If you notice reduced airflow, it may be time to clean the filters or inspect the unit for blockages.

For more information on air exchangers, here’s a helpful blog on the topic.

By following these simple maintenance steps, you can keep your humidifiers and air exchangers running smoothly, improving your indoor air quality and overall comfort. If you ever have any questions, don't hesitate to reach out!

Air Exchangers (HRV/ERV)

Air exchangers come in all shapes and sizes, but yours might look something like this

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