Is your central heating system slow to warm up?
Are some of your radiators partially or completely cold?
Do your radiators require frequent bleeding?
Is the water in your radiators discoloured and dirty?
Do your radiators have pinhole perforations and leakages?
Does your boiler make kettling noises?
Does your central heating system have repeated pump failures?

Any of these symptoms could indicate that your central heating system has circulation and flow problems. This is a result of internal corrosion and the subsequent formation of rust, sludge and scale deposits. A power flush can restore circulation and efficiency to your heating system….

What is Power flushing?

Power flushing is the quickest and most effective way to flush heating systems with minimal disruption and dismantling. It is the process used to clean heating systems using water at high velocity, but low pressure. This process is made more effective by specialist chemicals, and an instantaneous flow reversal device which creates turbulence in the radiators to optimise pick-up of the debris removing sludge and debris which has collected in the heating system over the years.

How is Power flushing carried out?

The power flushing pump is connected to the system across the flow and return pipe work. As the power flush pump dislodges the sludge and debris it is flushed away through the pump’s drain, whilst at the same time the pump fills the system with fresh water from the connection to the cold water main.

Our Recommendation

Boiler manufacturers recommend that a heating system should be power flushed immediately before a new boiler is fitted to an existing system. Some manufacturers even make the boiler’s warranty conditional on this. When a new boiler is fitted, the system alterations and high efficiency of the new boiler can dislodge accumulated debris which has been in the system for years. This is why boiler manufacturers are reluctant to carry out warranty repairs where it is suspected that the fault has been caused by debris and sludge in the system. Only by power flushing can you be sure that a system really is clean to the standards demanded by modern high efficiency boilers and heat exchangers.

Radiators that are cold or partially cold are often this way because there is sludge trapped in them. The sludge tends to sink to the bottom of the radiator. This is why radiators can sometimes feel cold at the bottom and hot at the top. If the sludge is removed by power flushing, then the water is able to circulate around the whole radiator rather than just the top part of that radiator

The cost of power flushing varies depending on the size of system (piping, number of radiators, etc) and the time required. To arrange a free no-obligation survey by one of our heating engineers and an accurate quote please contact our offices today.