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What Is an Air Handler and What Does It Do?

An air handler is the indoor part of your HVAC system that moves heated or cooled air through your home using a blower and coil.

What Your Air Handler Does for Your Home

Your air handler is responsible for circulating air throughout your home. It works with your air conditioner, heat pump, or furnace to deliver consistent airflow through your ductwork.

Inside the air handler are several key components:

  • Blower motor that pushes air through your vents
  • Evaporator coil that cools or heats the air
  • Drain system to remove moisture
  • Electrical controls that regulate operation

When your air handler is working properly, your home feels evenly cooled or heated. When it’s not, you may notice weak airflow, hot and cold spots, or rising energy bills.

At Radiant, we look at how your air handler works with your full HVAC system to ensure proper airflow, efficiency, and long-term performance.