Air handlers and furnaces aren't often found side by side in Windsor. If you rely on a furnace, you probably don't need to think about an air handler.
Air handlers are frequently linked with heat pumps and deliver airflow across your house. Some systems also offer secondary heating and cooling components to support the heat pump.
A furnace runs differently by pushing heated air into your vents, which send it across your house. As furnaces rely on combustion chambers to create heated air, they don't need some of the components you'll spot in a regular air handler.