Thermostatic radiator valves (TRVs) are a type of valve used in heating systems to control the temperature of individual radiators. They consist of a valve body, a thermostatic head, and a temperature sensing element that opens and closes the valve based on the room's temperature. TRVs work by sensing the ambient temperature of the room and adjusting the flow of hot water into the radiator accordingly. This allows for precise control of the temperature in each room, making it more comfortable and energy-efficient. TRVs are available in a range of styles and finishes, making them suitable for use in any home or commercial setting. They are also easy to install, and their simple design ensures reliable and trouble-free operation. With their energy-saving benefits and ease of use, TRVs are a popular choice for homeowners and heating professionals looking to improve the efficiency and comfort of their heating systems.