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    HVAC Airflow Issues That May Trigger Heating and Cooling Inefficiencies

    An aircon
    Free and efficient airflow is at the center of efficient heating and cooling. Anything that interferes with free airflow may leave your house in uncomfortable temperatures. Below are some of the situations that may restrict the flow of air in or around your heating, ventilation, and air conditioning (HVAC) system.

    Clogged Filters

    The filters trap pollutants or debris to clean the air that enters the HVAC system. The HVAC works this way so that you get to breathe clean indoor air, and so your HVAC system doesn't get clogged with dirt.

    Over time, however, the trapped debris blocks the tiny holes in the filters and reduces the volume of air flowing through. The reduced rate of airflow forces the HVAC to run endlessly in a bid to increase its output. Unfortunately, an overworked HVAC is an inefficient HVAC and likely to break down frequently.

    Clogged Coils

    The evaporator coil cools and dehumidifies the air while the condenser coil cools and condenses the refrigerant. The coils of your HVAC system need to be impeccably clean so that they can facilitate heat exchange as air flows over them.

    Unfortunately, windblown debris such as dust, mold, pollen, and leaves can clog the coils and shield them away from the air. The condenser coils, which sit outside unit of the HVAC system, are particularly vulnerable to windblown debris.

    Blocked Vents

    The vents supply your rooms with fresh (heated or cooled) air and also collect stale air from the rooms. The supply and return vents work together to maintain proper air circulation. Anything that interrupts the flow of air through the vents interferes with your heating and cooling.

    For example, you may block the return or supply vents with household objects such as furniture, furnishings, and decorations (such as artwork). If you do that, your HVAC will run but you will not get the temperature you want because of the restricted airflow.

    Blocked Air Ducts

    The air supply ducts are the channels that air uses to reach different parts of your house. The return air ducts transport stale air back to the HVAC for heating or cooling as needed. Blocked air ducts, therefore, have the same effect as blocked vents — they restrict the air circulation in the house.

    Here are some of the things that may restrict airflow within the ducts:
    • Damaged or closed zone dampers
    • Accumulated dust
    • Accumulated construction debris
    • Pests
    • Physical damage to the ductworks
    In short, anything that reduces the diameter of the ductworks reduces the flow of air within the channels and interferes with airflow.

    Shielded Condenser Units

    Your HVAC system may also suffer reduced airflow if something has blocked the outside unit and prevented airflow around it. The outside unit of the HVAC, the condenser or heat pump, needs efficient air circulation to facilitate heat transfer between outside and inside air.

    Anything that blocks the air circulation around the condenser or heat pump interferes with this heat transfer. For example, the outside unit of the HVAC may suffer restricted air circulation if:
    • Your area has experienced an uncharacteristically high snowfall.
    • You have constructed a fence too close to the unit.
    • You have covered up the unit to prevent weather damage.
    Both weather and human activity can restrict airflow around an HVAC unit. Make sure your activities do no such thing.

    If you have not serviced your HVAC for a long time, then you should schedule a service soon. At A & A Service Company, we can service and tune your HVAC system and improve its efficiency. Contact us today for a quote on how we can deal with airflow restrictions on your HVAC system.

    A & A Service Company

    2911 Terry Drive
    Middletown, Ohio 45042

    24-Hour Emergency Service Available

    Contact Us

    Franklin/Springboro
    Phone: 937-746-6166

    Middletown/Monroe/Lebanon
    Phone: 513-423-6166

    Email: a7466166@yahoo.com

    Payment Options

    Credit Cards
    Ohio License No. 21351

    Contact Us Today

    • Reload
  • A & A Service Company

    2911 Terry Drive
    Middletown, Ohio 45042

    24-Hour Emergency Service Available

    Contact Us

    Phone: 937-746-6166 Franklin/Springboro
    Phone: 513-423-6166 Middletown/Monroe/Lebanon
    Fax: 937-746-5048
    Email: A7466166@yahoo.com

    Payment Options

    Credit Cards
    Ohio License No. 21351