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Central Heating Power Flushing

Central heating power flushing

Minster Stoves & Heating offers central heating power flushing in Herefordshire & the surrounding counties.

Information about Central Heating Power Flushing

Central heating power flushing is a cleansing process which aims to remove deposits of sludge, rust and any other debris from your central heating system. These contaminants, if left, can seriously affect the efficiency of a heating system.

Sludge filled systems can lead to cold radiators, blocked pipes, noisy boilers, failure of components like circulating pumps and valves and damage rubber seals.

What is sludge?

Sludge (technically known as black oxide sludge or magnetite) is caused by the natural corrosion of radiators and other heating system components. This happens in all systems but is an increased problem in systems that are re-introducing fresh water and therefore more oxygen into the system.

Left untreated sludge can lead to an increase in your heating bills, less heat, key components in your heating system being damaged and blockages.

If your central heating system suffers from any of the following, it would almost certainly benefit from central heating power flushing:

  • Central heating system is slow to warm up
  • Some radiators partially or completely cold
  • Radiators require frequent bleeding
  • Water in radiators is discoloured and dirty

  • Radiators have perforations and leakages
  • The boiler makes a kettle-like noise
  • Regular heating pump failures
  • Warm water in the header tank

Common questions answered

Yes, power flushing is a very effective cleaning method and removes most of the sludge out of your system.
You will always benefit from having your central heating water as clean as possible, how much you will benefit will depend on how much sludge you have in your system. If you have never, had one done it is a good idea to have a power flush; it is also a requirement of boiler manufacturer’s guarantees. It will help increase the life of your central heating pump, it helps reduces radiator corrosion or internal heating system corrosion and can help to eliminate banging noises (kettling) and prolongs your boiler life.
It will help to heat your home more efficiently reducing your energy costs. You will always benefit from having your central heating water as clean as possible, how much you will benefit will depend on how much sludge you have in your system. If you have never, had one done it is a good idea to have a power flush; it is also a requirement of boiler manufacturer’s guarantees.
The length of time taken does vary and is mostly dependent on the amount of sludge in the system and the size of the system. As a rough guide: a home with 5 radiators can be flushed in approx. 4 hours, homes with 7 radiators can be flushed in approx. 5 hours & 10 radiators can be flushed in approximately 7 hours.
As a rough guide, a home with up to 10 radiators will be £300.00, 11 - 15 radiators will be £350 and for homes with more than 15 radiators there will be an additional charge of £25 per radiator. Discounts are offered to customers who have new installations fitted by Minster Stoves & Heating. Please contact us for more information.