Power flushing is 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 objective is to restore systems with circulation problems and
boiler noise problems caused by sludge and corrosion deposits to optimum
Power flushing removes these deposits and the problems that they cause.
We use power flushing in two main areas:
Power flushing, is 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 prudent 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 by the increased efficiency of the new boiler. This debris may then accumulate in
the boiler's 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 they are more susceptible to problems caused
by debris in the system water.