What are the components of a closed-loop heating system?

A closed-loop heating system consists of specific components that work together to efficiently generate and distribute heat. The boiler is the central unit that heats the water or fluid, which is then circulated throughout the system. The pump is crucial as it ensures the heated water is moved through the piping to different areas where heat is needed. Heat exchangers play a vital role by transferring heat from the heated water to the air or other mediums used for heating spaces, while radiators or heating coils are the final points in the system where heat is delivered to the environment, warming the air or surfaces in the room.

The other options represent different types of heating and cooling systems. A heat pump, thermostat, and expansion tank are components typically found in both heating and cooling systems but do not specifically describe the closed-loop heating method. Similarly, chillers, condensers, and piping systems are components related to refrigeration or air conditioning systems, and compressors and evaporators are specifically part of refrigeration cycles, focused on cooling rather than heating. The correct components of a closed-loop heating system are essential for its operation in providing warmth in a controlled and efficient manner.