Power flushing is essentially a deep, comprehensive clean of your radiators and central heating system, using powerful chemicals to flush out the sludge, rust and any other debris that may have settled over time in your radiators, pipes and boiler. Power flushing is recommended for all radiators unless your radiators are especially old; for example, if you’ve moved into a property where the radiators were installed in the 1940s or 50s. The ultimate aim of a power flushing is to ensure that water can fully circulate your entire heating system, enabling it to work efficiently to heat your home. The process of power flushing rids your central heating system of sludge
Rids your central heating system of sludge
Stops this sludge from corroding or damaging your system
Helps to keep your system working more efficiently and for longer, reducing the chances of your heating system breaking down and saving you money on your energy bills
Ensures that heat is distributed evenly throughout your home
Signs that your central heating system may be in need of a power flush
Power flushing is key to maintaining a healthy central heating system and avoiding breakdown and there are some clear signs that your system could benefit from this type of deep clean:
Some rooms in your home feel colder than others, even when all of your radiators are switched on
It takes a long time for your central heating system to warm up
Your radiators feel warm at the top but cold at the bottom
You need to bleed your radiators more frequently
Your boiler is increasingly noisy (although this can also be a sign of other issues)
Discoloured water when you bleed your radiators
Cloudy tap water in instances where there is a significant build up of limescale
A limited hot water supply or possibly no hot water at all, even when your heating has been switched on for some time
How does power flushing work?
To begin the process, a powerful pump, which is attached to the power flushing machine, is connected to your central heating system. On a standard central heating system, this means removing the pump and connecting the power flush hoses to the pump valves. On a combi-boiler system, the power flushing hoses would be connected to your radiators. The pump on a power flushing machine moves fluid through your system 4-5 times faster than the pump on your central heating system, which gives it the power to remove the sludge deposits that typical pressure can’t flush away. Next, a series of high strength cleansing chemicals are pumped through the heating system to flush out all contaminants. The chemical solutions used typically include an agent to help break down and remove rust and sludge, a descaler to break down limescale and a corrosion inhibitor to stop further rust from occurring.
How long does it take to power flush a central heating system?
Completed to a high standard, power flushing takes several hours from start to finish. The time can vary depending on the size of the central heating system and whether the system is particularly dirty, but essentially, power flushing your heating system will take a full day. All of our power flushes use high quality chemical solutions for maintaining clean, efficient central heating systems.
Central heating filters.
Once a power flush has been completed, central heating filters can further protect your system by reducing the amount of sludge, rust and limescale that build up in your central heating system. We recommend central heating filters for all systems, and in particular, we recommend the award-winning Magnaclean Adey filter, which we provide and install for £150 on the system that we are power flushing.
How much will it cost to power flush my central heating system?
The cost of a power flush typically ranges from £350 to £1,200 nationally. At Verisure we provide a full power flushing service for £496, which includes all labour and chemicals for deep cleaning up to 11 radiators. Additional radiators are charged at £39 each.