What component is used by convectors to enhance heat transfer?

Metal fins are used in convectors to enhance heat transfer by significantly increasing the surface area that comes into contact with the air. When hot water or steam flows through the convector, the fins absorb heat from the fluid and transfer it to the air passing over them. As the air heats up, it rises, creating a natural convection current that helps distribute the warm air throughout the space effectively.

By contrast, while radiators can also distribute heat, they do not necessarily enhance heat transfer in the same manner as fins. Blowers actively move air but are not a component of all convectors. Copper tubes are commonly used in many heating systems for fluid transport due to their excellent thermal conductivity, but they do not directly enhance the heat transfer mechanism in the same way that metal fins do in a convector setup.