Is a dehumidifier for an HVAC system necessary

Controlling your home’s humidity levels is equally important as having a functioning heating, ventilation, and air conditioning (HVAC) system, to provide heating and cooling to your home all year round.

  • A dehumidifier is HVAC equipment that eliminates moisture from your surrounding air, unlike the humidifier, which adds moisture to your space.

They are mostly used in humid summer climates, where the weather turns both humid and hot. A dehumidifier passes air over coolant-filled coils, condensing the moist air into water collected in a container. You can connect a drainage tube to enable your unit to drain constantly, or you may empty your dehumidifier occasionally. Dehumidifiers are necessary for your HVAC system, not only because they enhance your home’s comfort by making it cooler, but they also provide an environment that discourages mold spores, dust mites, and other allergens from thriving. Look for signs indicating high indoor moisture levels in your home that may require a dehumidifier. Additionally, condensation on your doors and windows should be treated as signs of high humidity levels in your indoor space. These small drops of water flow into your wooden indoor finishes and could ultimately cause the wood around your doors and windows to rot or allow mold growth. Therefore, mold growth in your home’s wall corners and basement ceilings also indicate high humidity. Musty odor around your house, basement watermarks, and peeling wallpaper or blistering paint show excess moisture in your surrounding air. You may also want to check out your floors, doors, and windows for creaky sounds caused by moisture absorption in the wood, resulting in loose screws, joints, and your home’s structural frame. Install a dehumidifier to complement your HVAC system when you see any of these signs.


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