Signs it’s time for a Powerflush
There are signs to look out for that suggest that all is not well in your central heating system.
- Cold areas on radiators e.g. at the bottom
- Excessive noise from the boiler or the heating system pump
- Discoloured water when you bleed the radiators
- Heating is slow to warm up
- Cloudy tap water (limescale in system)
- Some radiators struggle to heat up as well as others
- Radiators cold but pipes are hot
- Boiler regularly shuts down and needs restarting
- No water escapes when you bleed a radiator
- Noisy radiators and or / boiler
How does a powerflush work?
An engineer will connect a pump to your central heating system. If it’s a combi it will be connected at the pump head but if it’s a system boiler it will be connected at the circulation pump. This pump will push special chemicals through the pipes, boiler and radiators.
This includes a chemical that will remove sludge and rust, a descaler to remove limescale and corrosion inhibitor to help prevent future rust from forming. The engineer will collect and dispose of any contaminated water, debris or particles that they remove from the system.
The engineer may also use special tools on the exterior of the radiator to dislodge stubborn blockages. They should be able to measure the temperature of your radiators before they have started work and then show you the improvement after the Powerflush.
The whole process can last anything from 6 – 10 hours depending on the number of radiators in your home, the age of the system and the severity of the sludge in the system. The engineer may find more problems than originally anticipated such as needing new parts to replace those that have been damaged beyond repair. Most Powerflush jobs can be completed in one day but some of the more severe cases may require longer.
A qualified engineer will be able to perform repairs, replacements and carry out a Powerflush.
Benefits of a powerflush
It’s not all doom and gloom; there are lots of positive reasons to get a Powerflush carried out too.
- Radiators will heat up quicker
- Radiators will get hotter
- Quieter radiators / boiler
- More energy efficient system = cheaper energy bills
- Higher hot water temperatures
- More reliable i.e. less chance of breakdown
- Increase the life of your heating system.