Master the Certified Energy Auditor Exam 2025 – Power Up Your Energy Audit Skills!

The correct answer reflects how a forced air heating system operates. This type of HVAC system uses a network of ducts to distribute heated air throughout a building. It features a central heating unit that heats the air and then uses a blower to push this warm air through the ductwork, enabling efficient heating of various rooms or areas. The ductwork system is crucial as it allows for the controlled flow of heated air, providing consistent indoor temperatures.

In contrast, radiant heating systems rely on heating elements installed in floors, walls, or ceilings to warm up spaces directly without the need for ductwork. Evaporative cooling systems use a different mechanism involving the evaporation of water to cool the air, typically without employing ducts. Lastly, while split air conditioning systems do distribute cooling air, they usually do so via a refrigerant and are generally classified as ductless systems when operating without extensive ductwork. Thus, the forced air heating system is distinct in its use of ductwork to deliver heated air efficiently.