We also offer a power flushing service to clean out your central heating system.
Power flushing involves pumping water and a cleaning agent around the system at a higher velocity than usual to remove the buildup of harmful corrosion deposits. These harmful deposits are caused by not having enough corrosion inhibitor in your system, or the use of a poor-quality inhibitor, which results in the corrosion of the system from the inside out.
Signs that your heating system may need power flushing
- Cold spots on radiators
- Boiler noises (knocking, sounds like a kettle boiling)
- Radiators taking an unusually long time to warm up
- Radiators needing regular bleeding of air
- Repeated circulation pump failures
- Radiator water dirty or discoloured
What we do on a power flush
On a power flush we will individually clean each radiator, the boiler and the heating coil or heat exchanger (this does not involve removing every radiator). Once the system has been flushed it will contain clean fresh water. We will then rebalance your radiators and add the recommended amount of a good quality corrosion inhibitor to your system.
Fitting a new boiler to an existing system
When a new boiler is fitted to an existing system, the boiler manufacturer will require that the system is power flushed to remove debris. This is because modern efficient boilers have compact heat exchangers with narrow waterways which makes them more susceptible to problems caused by corrosion deposits.