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What is a Powerflush and Why Get One?


Powerflushing is the process by which the central heating system of a house is flushed clean of rust, sludge and any other debris that may have accumulated.

A high flow/low pressure pumping unit is attached to the heating system circulation pump and a series of strong cleansing chemicals are flushed through the entire system

Unfortunately powerflushing is quite an expensive process and you should only have one if you really need it. So how do you know when your heating system needs to be flushed?

The signs to look for

There are a few common signs that indicate powerflushing is needed and these include:

  • Cold spots on the radiators or radiators that don’t heat up at all
  • Discoloured water when you bleed the radiators or in severe cases when you run the tap
  • Excessive noise from the boiler unit or the circulation pump
  • Poor or non-existent hot water even when the system has been running for a while

These problems on their own may be able to be rectified without powerflushing, however, if you notice more than one sign then it is probably worth considering a powerflush.

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The benefits of powerflushing

The result of powerflushing is that the boiler and the rest of the central heating system become more efficient. This occurs because there is better circulation through the pipe work and the radiators and in turn the boiler doesn’t have to work as hard to warm the house and water. Therefore the overall result is that you save money on your gas bills.

The cost of powerflushing

As mentioned above powerflushing is quite an expensive process. The price you pay will depend on a number of factors, such as the size of the heating system and the quantity of cleansing chemicals needed to flush the system clean. On average you will be looking to pay between £350 and £1200 for a powerflushing and so you need to make sure your system will benefit from the process before booking an appointment, but remember, always shop around for the cheapest quote to ensure you get the best possible price.

Consequences of not powerflushing

If your heating system does need to be powerflushed and you decide not to do it then the problems will almost certainly get worse. The circulation through the pipes and the radiators will slow until very little hot water gets through. This means that the house won’t heat up and the boiler will be working for no real reason. The result of this is that energy will be wasted and in the long run money will be wasted as well.

Conclusion

So is powerflushing worth it? The answer to this depends on how affected your heating system is. If the entire system is showing signs of bad circulation or you notice more than two of the signs mentioned above then a powerflush will probably be worth the money you pay. If, however, only a few radiators are suffering from cold spots then it will probably be much quicker and easier to take the radiators off the wall and flush them separately. To be absolutely sure though it is worth asking an expert in powerflushing for their advice.

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