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If your suite has a heat recovery ventilator, it’s doing quiet but important work: pulling stale air out, drawing fresh air in, and recovering heat along the way. The most common mistake is not understanding the modes. Most units have a low or continuous setting for everyday use, a boost setting for clearing moisture quickly after a shower, and a recirculation setting that moves air without exchanging it outdoors. In deep cold — roughly minus thirty and below — recirculation helps prevent the core from freezing up. The second mistake is treating the unit as maintenance-free: rinse the filters in warm soapy water at least once a year, and check your exterior intake and exhaust hoods for leaves, lint, insects or snow.

The third mistake is expecting an HRV to work as a dehumidifier. It can only lower indoor humidity when the outdoor air it brings in is drier than the air inside — true through most of a prairie winter, often not true in July. On a warm, humid day, running it in ventilation mode can add moisture to your suite, which is why recirculation is the better summer choice. If you’ve adjusted the settings, cleaned the filters and cleared the hoods and the unit is still noisy, freezing up repeatedly, or the controls aren’t responding, that’s the point to call for service rather than keep troubleshooting.