And a quick note to everyone at Aspect to say thank you for being such an efficient, effective and easy company to deal with. Fantastic service! Much appreciated.
Alex, Herne Hill, SE24
Over time the efficiency of your central heating system might be reduced. We know it can be frustrating if your central heating system isn’t working efficiently.
If the radiators in your home aren’t heating your rooms as quickly as they should, a power flush might be needed. This could increase the efficiency of your central heating system by as much as 30%, meaning cheaper fuel bills in the future.
Call one of our heating and hot water experts today. We can answer any questions you have about power flushing.
And a quick note to everyone at Aspect to say thank you for being such an efficient, effective and easy company to deal with. Fantastic service! Much appreciated.
Alex, Herne Hill, SE24
Fast, efficient and friendly service.
Cherry, Brompton, SW10
I called Aspect with an urgent issue, they managed to fit me in the same day at the time I needed, they turned up on time and dealt with the issue immediately, and offered lots of good advice.
Fatima, Streatham, SW16
You can carry out a simple check on each of your radiators to help identify whether your central heating system might need a power flush: –
If the bottom centre of your radiators is cooler than the top left and right corners your system could benefit from a power flush.
An Aspect gas engineer could confirm whether or not your central heating system would benefit from a power flush. Sometimes it can be more cost effective to replace a radiator rather than trying to completely clean it.
The water held in a central heating system would normally corrode steel or iron radiators. When a central heating system is installed a dose of system protector, or ‘inhibitor’, is added to the water. This prevents corrosion in the form of ferrous oxide (rust).
Over time the amount of inhibitor in a central heating system can be reduced. This happens as a result of topping up the water in the system. System leaks, draining radiators or adding new radiators would all mean adding water to a central heating system.
Once the dose of inhibitor has been reduced the process of corrosion starts and ferrous oxide is created. This solid is kept suspended in the water as it flows at high velocity through the system, but it will settle as a dark sludge where the velocity of water flow is lower.
Water flow velocity is lowest at the centre of a radiator. As the sludge settles in the same part of the radiator it gradually builds up and forms a solid mass. This build-up prevents hot water from coming into contact with that part of the radiator panel. This reduces the energy output of the radiator.
Radiators need to remain on for longer to reach the comfort temperature set for the room. This means the boiler is burning more gas as it’s working for longer than it would otherwise need to. Power flushing can help correct this.
A power flush removes sludge and restores performance of the central heating system.
A power flush takes at least 4 hours depending on the size of the system and amount of sludge present.
Cleaning chemicals are pumped at an increased pressure through the system. At the right temperature they help to break down the sludge that has settled. The power flushing machine removes particles that are suspended in the chemical solution.
Once the sludge has been removed the system is topped up with clean water and the correct dose of inhibitor is added to prevent future corrosion.
We’re fully trade accredited. Aspect is registered with Gas Safe and is a member of the Building Engineering Services Association (BESA). In addition, the Aspect Guarantee covers our tradesmen’s workmanship for up to 12 months.
When you book an Aspect gas engineer for a power flush you can count on getting the professional expertise you’re looking for.
Our gas engineers service residential and commercial properties throughout Greater London (all 32 London boroughs and the City of London), as well as all other postcode districts within the M25.
If you need to book one of our gas engineers for any installation, repair or servicing work outside the M25 we might still be able to help. Call our scheduling team to check availability. They’re ready to take your call 24 hours a day, 365 days a year.
You can book our Gas Safe registered engineers for a variety of jobs. Read more about the range of services we provide here: –