The furnace takes up majority of the in HVAC system.
The furnace moves air from the exchanger into the air ducts.
The exchanger is not part of the furnace.
It adds heat to the incoming air from the combustion chamber...
The now-cold air blows through the air ducts throughout your home...
The unit is like the coil and for HVAC unit.
Inside the unit, the unit exchanges heat with the air that passes over it.
This means the refrigerant tubes connect the indoor and HVAC units.
it enters the room through vents.
During warm months, the heat pump takes heat from the inside to the outside.
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