Understand the Importance of Dehumidification and Moisture Management in Your Home

with Tim DeStasio

From warped wood to mold growth, excess humidity doesn’t just feel uncomfortable—it can sabotage your home. HVAC expert Tim De Stasio breaks down the real causes of indoor moisture and shares solutions that work. You’ll learn what draws unwanted moisture inside, how to maintain safe relative humidity and dew point levels year-round, and why regional differences matter. Tim also explains how to choose the right dehumidifier, how to humidify your home safely, and how to tell if your system is doing its job. This class equips you to tackle moist indoor air head-on, protecting both your home and your family’s health.

In this mini class, you’ll learn:

  • Why indoor humidity should be controlled and where it comes from. (3:14)

  • How homes become humid through infiltration, duct leakage, ventilation, and daily living. (7:41)

  • The difference between relative humidity and dew point. (11:32)

  • How dew point affects HVAC system health, and regional dew points variations across the U.S. (15:06)

  • Safe humidity levels and ways to control indoor moisture, including runoff management, air sealing, crawlspace sealing, and proper HVAC sizing. (20:00)

  • Pros and cons of whole-home versus portable dehumidifiers, ventilating dehumidifiers, and how to choose and install the right one. (25:07)

  • How to maintain dehumidifiers, confirm they’re working properly, and how and why humidifying your home is sometimes important. (32:09)

  • How to make the humidity reading on your thermostat more accurate. (41:11)


Download the transcript here.

Watch More Episodes From Our HVAC + D Mini Class Series here:
https://changetheairfoundation.org/understanding-hvac-d/

Thank You To Our Sponsor!
Santa Fe Dehumidifiers: www.santa-fe-products.com

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