Why your boiler loses efficiency — and what a power flush fixes
Sludge and air are the silent killers of heating performance. We explain when a power flush pays for itself.
Cold spots at the bottom of radiators, noisy pipework, a boiler that short-cycles — these are classic signs of sludge (iron oxide) building up inside your heating system.
What a power flush does
A power flush pushes a high-velocity mix of water and cleaning chemicals through the system to dislodge and remove that sludge, restoring full circulation. We finish by dosing the system with inhibitor and, where needed, fitting a magnetic filter to keep it clean.
VDI 2035 water treatment
For heat pumps and modern condensing boilers we go further, treating the system water to the VDI 2035 standard. Correct water quality protects your warranty and keeps the system running at peak efficiency for years.
When does it pay off?
If your system is more than a few years old and has never been cleaned, a flush usually pays for itself in improved efficiency and fewer breakdowns — and it is essential before fitting a new boiler or heat pump.