A Powerflush is a cleansing process which aims to remove deposits of sludge, rust and any other debris from your central heating system.
Sludge in your heating system can cause to blockages and corrosion which will lead to both inefficiency and / or breakdown. In extreme cases it can be so damaging that a complete boiler replacement is needed.
If you carry out regular servicing and maintenance (professional servicing annually by a Registered Gas Installer) then a preventative Powerflush should only be necessary every 5-6 years to clear debris and prevent significant blockages from taking hold.
However, this will vary depending on the system you have. For example, some boilers use copper heat exchangers rather than stainless steel which will corrode quicker.
IMPORTANT: If you are planning to replace your boiler it’s important that the engineer performs a Powerflush before the installation. Otherwise, you risk contaminating the new boiler with damaging sludge and debris that’s hanging around in the old pipework.
There are signs to look out for that suggest that all is not well in your central heating system.
Check out this great video