On Time Home Experts

  1. Air Handler/Blower: This is the heart of the system that circulates air throughout
    the ducts. The air handler uses a fan (blower) to push air through the system’s
    ducts to the different rooms in a building. In heating systems, a furnace or heat
    pump provides the warm air, while air conditioners cool the air in the summer
    months.

  2. Evaporator Coil (Indoor Coil) The evaporator coil is located inside the air
    handler or the indoor unit of an air conditioner, typically near the blower
    fan. This coil is where the refrigerant absorbs heat from the air inside
    your home.


    ● HowItWorks: The evaporator coil contains refrigerant in a cold, low-pressure liquid
    form. As warm air from your home is blown over the coil, the refrigerant inside the coil
    absorbs heat from the air, causing it to evaporate and change into a gas. This heat
    exchange cools the air that circulates back into your living space.


    ● RoleinCooling: As the refrigerant evaporates, it removes the heat from the air. The
    cooled air is then blown into your home, lowering the temperature.

  3. Supply Ducts: These are the main channels that carry conditioned air (heated
    or cooled) from the air handler to different areas of the building. Typically, the
    ducts are made from sheet metal, fiberglass, or flexible materials, depending on
    the design of the HVAC system. The size and layout of the supply ducts are key
    to ensuring efficient airflow and proper temperature regulation.
  4. Return Ducts: After air circulates through the rooms and is affected by


    temperature changes or contaminants (like dust and pet dander), it returns to
    the HVAC unit via return ducts. These ducts are usually larger than supply ducts
    to accommodate the volume of air being drawn back in for re-conditioning.
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