What Is Power Flushing and When Is It Needed?
Power flushing is a cleaning process that pumps water and cleaning chemicals through a central heating system at high flow and low pressure. It dislodges and removes the sludge, rust, and debris that build up over time, restoring proper circulation and helping the system heat evenly and efficiently.
A system usually needs power flushing when performance drops, particularly on older installations or before fitting a new boiler. Carrying out a flush before a boiler swap protects the new appliance and helps preserve any warranty conditions, so it is a common step in servicing and installation work.