What type of heating system primarily uses convection for heat transfer?

The electric baseboard heating system primarily utilizes convection for heat transfer. In this system, electrical resistance elements heat the air directly. As the air near the baseboard heats up, it becomes less dense and rises. This creates a cycle where cooler air moves in to take its place, causing continuous air circulation throughout the room. This natural convective process efficiently distributes warmth, making it a key characteristic of electric baseboard systems.

In contrast, radiant floor systems primarily rely on radiative heat transfer rather than convection. They heat surfaces directly, which then warm the surrounding air by radiation. Forced air systems depend on a blower to push heated air through ducts, thus combining both convection and mechanical movement. Steam radiators use steam to heat metal surfaces, and while they can cause air currents, their primary method is through radiation rather than convection. Therefore, the design and function of electric baseboard heating distinctly highlight its reliance on convection for effective heat distribution.