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A radiator is a device designed to transfer heat from one medium to another, typically from a hot fluid to the surrounding air. In heating systems, radiators are often used to distribute warmth throughout a space. They work by circulating hot water or steam through their internal sections. As the hot fluid flows, it heats the radiator's surface, which then transfers heat to the air around it through convection and radiation. This heated air rises, creating a circulation pattern that warms the room. While older radiators are often visible, modern radiant heating systems may embed heating elements within floors, ceilings, or walls, making the equipment less conspicuous.123

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