Radiator valves play a crucial role in the functionality and efficiency of a heating system by regulating the flow of hot water to radiators and towel rails. Choosing the right type of radiator valve is essential for achieving optimal control over temperature and energy consumption. In this comprehensive guide, we will explore various types of radiator valves, each offering unique features to meet specific heating needs.

1. Thermostatic Radiator Valves (TRVs):

Overview: Thermostatic radiator valves, commonly referred to as TRVs, are among the most widely used and energy-efficient types of radiator valves. They integrate a built-in thermostat that senses the ambient temperature of the room. The user can set the desired temperature on the valve, and the TRV will automatically adjust the flow of hot water to maintain the chosen temperature.

Key Features:

  • Temperature Control: TRVs provide individual temperature control for each room, allowing users to customize the heating level based on their preferences.
  • Energy Efficiency: By regulating the temperature in each room independently, TRVs contribute to energy savings by avoiding unnecessary heating when it is not needed.
  • Ease of Use: TRVs are user-friendly, often featuring a numbered scale or symbols for easy temperature adjustment.


  • Initial Cost: TRVs may have a higher upfront cost compared to manual valves, but the potential energy savings can offset this investment over time.

2. Manual Radiator Valves:

Overview: Manual radiator valves are straightforward and operate by manually adjusting the flow of hot water to the radiator. They come in two main types: wheelhead valves and lockshield valves.

  • Wheelhead Valves: These valves have a visible wheel or handle that users can turn to control the flow of hot water. Wheelhead valves provide a basic on/off control for the radiator.
  • Lockshield Valves: Usually used in conjunction with wheelhead valves, lockshield valves balance the system by adjusting the return flow, ensuring even heat distribution.

Key Features:

  • Simplicity: Manual valves are simple to use and do not require additional components like thermostats.
  • Cost-Effective: Manual valves are often more affordable than thermostatic options.


  • Limited Temperature Control: Manual valves lack the temperature control features found in thermostatic valves, making them less precise in maintaining specific room temperatures.

3. Programmable Radiator Valves:

Overview: Programmable radiator valves, or smart radiator valves, are a technologically advanced option that allows users to set specific heating schedules for different times of the day or week. These valves often come with digital interfaces or remote control options.

Key Features:

  • Customizable Schedules: Users can program specific heating schedules, optimizing energy usage based on occupancy patterns and preferences.
  • Remote Control: Some programmable valves offer remote control capabilities through smartphone apps or other smart home devices.
  • Energy Savings: By automating heating schedules, these valves contribute to energy savings.


  • Initial Investment: Smart radiator valves may have a higher upfront cost due to their advanced features.
  • Compatibility: Ensure compatibility with your heating system and smart home infrastructure before investing in programmable valves.

4. Pressure-Independent Control Valves (PICVs):

Overview: Pressure-independent control valves, or PICVs, represent an advanced type of radiator valve designed for precise temperature control. These valves automatically adjust the flow of hot water or steam based on the temperature requirements of individual rooms.

Key Features:

  • Pressure Regulation: PICVs incorporate a pressure regulator, ensuring a consistent flow rate regardless of fluctuations in system pressure.
  • Precision Control: PICVs provide highly accurate temperature control, making them suitable for demanding applications.
  • Energy Efficiency: By maintaining optimal flow rates, PICVs contribute to increased energy efficiency.


  • Complexity: PICVs may require professional installation due to their advanced features and precise calibration.
  • Cost: PICVs can be more expensive than basic manual valves, and their benefits may be more pronounced in larger or complex heating systems.


Selecting the right type of radiator valve is crucial for achieving efficient heating, energy savings, and personalized comfort in different rooms. Thermostatic radiator valves offer individual temperature control, manual valves provide simplicity and cost-effectiveness, programmable valves introduce smart features, corner valves optimize space usage, and pressure-independent control valves offer precision in temperature regulation.

When choosing a radiator valve, it’s essential to consider factors such as the desired level of control, energy efficiency goals, system compatibility, and budget constraints. Whether you prioritize simplicity, advanced technology, or specialized solutions, the wide array of radiator valves available ensures that there is an option tailored to meet your specific heating requirements.