How does radiant heating work in commercial buildings?

Radiant heating operates on the principle of thermal radiation, where heat is emitted from hot surfaces and transferred directly to occupants and objects in the space. This method does not rely on air movement or the circulation of warm air through ducts; rather, it heats people and objects directly, creating a comfortable environment.

In radiant heating systems, surfaces like floors or walls are heated using water or electrical heating elements, which then radiate heat throughout the space. This approach is efficient for maintaining comfort since it can deliver warmth without relying heavily on air circulation, leading to less heat loss compared to traditional heating systems.

The effectiveness of radiant heating is not influenced by the movement of air, which means there can be less dust and allergens circulated in the environment. Therefore, option B accurately describes the operation of radiant heating in commercial buildings.