In residential heating systems, which one typically includes the use of ducts?

In residential heating systems, forced warm-air heating is distinctive for its use of ducts. This system operates by heating air and then distributing it through a network of ducts that run throughout the home. The heated air is delivered to various rooms via vents, ensuring a consistent temperature across the living space.

Radiant heating, on the other hand, relies on heating surfaces, such as floors or walls, and does not utilize ducts for air circulation. Electric heating can involve various methods, including baseboard heaters or electric furnaces, but it generally does not depend on a duct system for distributing heat. Ductless heating systems, as the name suggests, operate without ducts and often use wall-mounted units to provide targeted heating directly to specific areas.

Thus, among the options given, forced warm-air heating is the only system that typically incorporates ducts as an integral part of its design for distributing heat throughout the home.