What are the common types of heating systems in HVAC?

The correct answer identifies the common types of heating systems as furnaces, heat pumps, and boilers. Each of these systems plays a distinct role in generating and distributing heat within a building.

Furnaces are widely utilized heating systems that produce heat through the combustion of fuel or electricity. They are capable of providing consistent warmth and are common in residential and commercial buildings.

Heat pumps function by transferring heat from one place to another, typically from the exterior of a building to its interior. They are versatile devices that can serve both heating and cooling needs, making them energy-efficient alternatives to traditional heating systems, especially in moderate climates.

Boilers generate heat by heating water and distributing it through pipes to radiators or underfloor systems, providing a steady and comfortable warmth. They can utilize various fuels such as natural gas, oil, or electricity.

The other options include components like air conditioners and chillers, which are primarily associated with cooling rather than heating. Hydronic heaters and electric heaters may also be effective, but they don't represent the most common types of heating systems typically referenced in HVAC discussions. By focusing on furnaces, heat pumps, and boilers, the chosen answer accurately represents the standard categories of heating systems utilized in HVAC applications.