Why radiators need bleeding?
All radiators require bleeding to remove air bubbles that form periodically during the life of a system. Air can be introduced into a central heating system in several ways. It can occur when new water enters the system from the expansion tank or when a routine maintenance is carried out. It could also be ‘created’ by the movement of the central heating system pump as it turns. When radiators are not working properly, or when they are not putting out as much heat as they should, some parts of the house will be colder than others. When the house still has cold rooms, people tend to turn the thermostat higher than normally required, adding considerably to their central heating bill. How can you tell if your radiator needs bleeding? Signs that your radiator needs bleeding are, if your radiators are taking a long time to heat up and when the top of a radiator is cooler than the bottom. In s...