What is the key difference between forced air heating and radiant heating?

The key difference between forced air heating and radiant heating lies in their methods of heat distribution. In forced air heating systems, air is heated and then circulated throughout a space using fans or blower systems. This method relies on convection, where warm air is moved around to raise the overall temperature of the living area.

In contrast, radiant heating systems operate by directly warming surfaces, such as floors or walls, which in turn radiate heat to the surrounding space. This creates a comfortable and evenly distributed warmth without the need for air circulation. As a result, radiant heating can often improve comfort without the drafts or noise associated with forced air systems.

Understanding this fundamental distinction helps clarify why forced air heating involves the movement of heated air, while radiant heating focuses on warming surfaces directly. This difference influences efficiency, comfort levels, and the overall design of heating systems in various applications.