Answer:
The type of heating system that uses a furnace to heat cool air and transports the warm air via ducts is a forced-air heating system.
Step-by-step explanation:
In this system, a furnace burns fuel (e.g. natural gas, propane, or oil) to heat a heat exchanger. The cool air from the house is then forced over the heat exchanger, which warms the air. The warm air is then distributed throughout the house via ducts and vents. Forced-air heating systems are commonly used in residential and commercial buildings due to their efficiency, effectiveness, and ability to be integrated with air conditioning systems.