Air handlers and furnaces aren't usually installed in the same home in Kitchener. If you use a furnace, you likely won’t need to consider an air handler.
Air handlers are frequently used with heat pumps and manage airflow around your house. Some systems also provide backup heating and cooling pieces to support the heat pump.
A furnace works in a different manner by blowing warm air into your vents, which send it across your house. As furnaces use combustion chambers to create hot air, they don't need some of the parts you'll spot in a standard air handler.