What is condensation?

Condensation is the conversion of water vapor to water droplets. Water droplets form on a cold surface when it comes in contact with warm or humid air. A couple of everyday examples - think of a cold beverage on a hot summer day—condensation forms on the outside of the glass, bottle, or can. Similarly, on a humid summer morning, condensation on the outside of your windows and patio door may form. This condensation is harmless. However, condensation on the inside of your home can indicate a problem.

What causes condensation in HVAC systems?

Leaky ductwork letting moisture in, inadequate ductwork insulation, poor ventilation, clogged or dirty air filters, clogged condensate drain lines, drain pan problems, and high home humidity levels are the most common causes of HVAC condensation.

Signs of excessive HVAC condensation?

Exposed ductwork, AC vent condensation, musty smell, damp air filter, and puddle by the indoor unit are all signs that you have excessive HVAC condensation.

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Indoor Air Quality6min read

Excessive HVAC Condensation and How to Fix It

Have you noticed condensation on your air vents? Wondering why there’s condensation on your windows? Learn why it’s happening and what you can do about it.

Published:
October 21, 2024

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