Towel Radiators tend to be the highest point in a central heating system. Because of this, air in the system tends to get trapped at this point and causes the radiators not to perform as intended. Often cold tubes are present near the top of the radiator reducing its heat output.
Frequent bleeding of a towel radiator because of cold tubes caused by trapped air can be made automatic. SBH Radiators recommend replacing the bleed bolt with an Autovent system.
The device is very simple and quick to install.
Once this device has been fitted, it will automatically release air that finds its way into the radiator. This makes sure your radiator is running at its max at all times.