How a hot-water radiator heats a rooms air. Include in your answer the way heat moves from the metal radiator to the room.?

A hot-water radiator heats a room by transferring heat from the hot water flowing through the radiator to the metal surface of the radiator. The metal then radiates this heat into the surrounding air in the room through a combination of conduction and convection. As the air near the radiator heats up, it rises, creating a natural circulation of warm air in the room.