Air handlers and furnaces aren't usually installed in the same home in Hilton Head Island. If you use a furnace, you most likely won’t need to spend time thinking about an air handler.
Air handlers are frequently paired with heat pumps and control airflow throughout your home. Some units also provide secondary heating and cooling components to help the heat pump.
A furnace heats in a different manner by sending hot air into your vents, which move it across your house. Since furnaces depend on combustion chambers to make warmth, they don't need some of the pieces you'll see in a standard air handler.