Keep it clean!
Whether you are replacing your boiler or having a complete
new central heating system, your heating engineer must
clean and treat your system with chemicals and fit a magnetic
filter. At each annual service they will check the water in the
system, to make sure there is no build-up of sludge and debris.
Protect your central heating system
Power flushing – a power flush is a cleaning process
that removes sludge, rust and debris from the pipes
and radiators in your heating system so it can’t block
the narrow tubes inside your new boiler.
Inhibitor – once the heating system has been
cleaned, it should be treated with an inhibitor to
protect it and prevent further corrosion.
Magnetic filter – will collect magnetic debris in the
system water, before it enters the boiler.
Limescale prevention – in hard water areas, a
scale prevention device on the mains water will
ensure limescale does not build up and block the heat
exchanger in the boiler.
What is sludge?
Corrosion occurs naturally when metal and water meet. If left
untreated in your heating system, corrosion can form into
black iron-oxide sludge (‘Magnetite’) and other debris. This
can build up in your heating system causing:
• Damage to the boiler and boiler pump.
• Damage to radiators that could cause leaks.
• Damage to radiator valves.
• Blocked pipework in the boiler or central heating system.
Why you need a magnetic filter
A magnetic filter will attract the magnetic
debris in the system water before it enters your
boiler, helping to protect it from sludge.
Note: Your boiler warranty does not cover
damage to the boiler caused by sludge.
Getting the most
from your boiler
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