Radiators are heating devices that transfer thermal energy from one medium to another, typically from hot water or steam to the air in a room. They play a crucial role in central heating systems by distributing warmth throughout a building. There are various types of radiators, each with its own design and functionality. Common types include: Panel Radiators, Designer Radiators, Towel Radiators & Central HEating Radiators. Radiators are typically made from materials with good heat conductivity. Common materials include cast iron, steel, aluminum, and stainless steel. The choice of material can impact the radiator's efficiency and appearance. Many modern radiators are equipped with Thermostatic Radiator Valves (TRVs) that allow users to control the temperature in individual rooms. TRVs automatically adjust the flow of hot water based on the room's temperature. Radiators come in various sizes, and their heat output is measured in British Thermal Units (BTUs) or watts. Choosing the right size and output is essential for effectively heating a room.