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    • IAQ & Ventilation

    Management of airflow and reduction of impurities from air circulating in homes and buildings.

    Highlights

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    NADCA Issues Trademark Fraud ALERT

    Nov. 18, 2024
    NADCA does not certify or sell equipment and does not endorse individuals or companies.
    NCI/David Richardson
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    Create Air Upgrade™ Leads with Static Pressure Testing

    Sept. 17, 2024
    Unless you measure static pressure, Air Upgrade™ opportunities remain hidden.
    NCI/David Richardson
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    5 Tips to Improve Flexible Duct Installations

    Sept. 3, 2024
    Share these tips with your installers, and dare to install your duct systems correctly
    David Richardson/NCI

    Two Overlooked Supply Register Traits

    May 21, 2024
    Many in our industry overlook the importance of supply registers.
    David Richardson/NCI

    A New System Measurement Procedure – 20 Years Later

    April 16, 2024
    David Richardson shares the origins of NCI's System Efficiency Ratio™ testing, and other NCI advancements in HVAC system performance testing.

    Recommended

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    Quiz: Refrigerant Recovery & Evacuation (Part 2)

    Nov. 19, 2024
    How much do you know about proper recovery and evacuation procedures?
    Rob Minnick/NCI

    Unlocking System Performance Potential: The Domino Effect of Static Pressure Testing

    June 4, 2024
    Rob Minnick provides a mini-clinic as he describes the role of accurate pressure assessments in maintaining and enhancing HVAC system performance.
    Photo 169890140 © Martina Hanakova | Dreamstime.com

    Quiz: Indoor Air Quality Accessories

    May 20, 2024
    Test your level of understanding of basic principles of humidity and filtration.

    eBook: Mastering Essential HVAC Procedures

    April 24, 2024
    The Best of David Richardson, Vol 1, plus Bonus article from Rob “Doc” Falke
    National Comfort Institute

    Why HVAC and Home Performance Go Together

    April 1, 2024
    The integration of Home Performance into HVAC provides a smarter approach to better serving customers.