Power Flushing

S Fagan Gas Services are power flushing specialists covering Warrington and the surrounding areas within the North West of England. We offer competitive rates that are cheaper than the leading energy suppliers. All our engineers are fully qualified and insured and pride themselves on providing a professional service.

What does power flushing involve

Power flushing is the expression used to denote the process by which heating systems are forcibly cleansed using water at high velocity, but low pressure, so that no physical damage is caused to the system. The process can be made even more effective with the addition of powerful cleansing and mobilising agent.

The objective is to restore systems with circulation and boiler noise problems (caused by sludge and corrosion deposits) to optimum operation. Power flushing removes these deposits and the problems that they cause.

Power flushing is also an excellent way to pre-commission clean new heating systems, to remove excess flux, swarf and other debris, and the grease and oil used to prevent rusting of components before use.

It is important to power flush a heating system immediately before fitting a new boiler to an existing system to prevent possible future problems. Many systems are found to contain corrosion and sludge, even if no flow problems have yet shown themselves.

Existing debris is often mobilised by alterations to the system/piping and the increased efficiency of the new boiler, and may then accumulate in the boiler heat exchanger, causing noisy operation, reduced efficiency and, in extreme circumstances, failure of the boiler. The high efficiency and compactness of modern boilers, developed to minimise fuel costs and pollution, means that they are more susceptible to problems caused by debris in the system water.

Another extra edition that can be added to a system after power flushing is a magnetic filter. As sludge is made up of ironoxide it is magnetic, so by fitting a magnetic filter you can carry on removing the sludge in the future.

Thermostatic valves

Thermostatic radiator valves are often known by the initials "TRV".

A TRV works by sensing the surrounding air temperature. It progressively closes down the flow through the radiator as the air temperature rises, thereby cooling the radiator and regulating the room temperature.

When fitting a new boiler or replacing an existing boiler there should be a TRV fitted on each radiator in the house except one which is known as the bypass. The bypass can be any radiator in the house but normal practice is to have it as the radiator where the room thermostat is. This will then control the overall temperature of the house.

Minimum building regulation requirements state that TRV's should be fitted in bedrooms.


In assosciation with:

BaxiGas Safe