What is a system 
deep clean? 

It's all about resetting your water quality, so you can reduce the risk of system breakdown and reduce the amount of gas you're using to heat your home.

What is a system 
deep clean?

What is poor water quality?

Corrosion occurs naturally in environments where metal and water meet. If left untreated in your heating system, corrosion can form into black iron-oxide sludge (known as sludge or magnetite) and other debris can build up in all open and closed-loop heating systems, causing performance deterioration and, ultimately, failure.

Poor water quality is a leading cause of heating system breakdown in the UK. But it's not permanent. Performing a deep clean of your heating system can help get your heating system back to it's best, keeping you warmer while reducing the amount of gas you're using.

What is poor water quality?

Corrosion occurs naturally in environments where metal and water meet. If left untreated in your heating system, corrosion can form into black iron-oxide sludge (known as sludge or magnetite) and other debris can build up in all open and closed-loop heating systems, causing performance deterioration and, ultimately, failure.

Poor water quality is a leading cause of heating system breakdown in the UK. But it's not permanent. Performing a deep clean of your heating system can help get your heating system back to it's best, keeping you warmer while reducing the amount of gas you're using.

* These facts are based on independent research of UK central heating systems by Delta EE.

Get sludge out!

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Get sludge out!

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Poor water quality leads to sludge in your system, which can clog up pipework, radiators and your boiler. Find out how a system deep clean can help.

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How do I know if I need a deep clean of my heating system?

The most common tell-tale sign of sludge build-up is cold patches on radiators, usually starting at the bottom of the panel.

The connecting pipework is hot, but the radiator remains cold to the touch meaning it's not producing as much heat as it should.

You may need to bleed the radiators more regularly than normal, or the house is taking longer to heat up than usual and you are finding yourself turning up the thermostat.     

To properly detect a need for a deep clean you should call your local heating engineer. 

Many installers use thermal imaging equipment to show you the cold patches of your radiators, but the best way to detect for a dirty system is to ask your heating engineer to carry out a very simple water test to show you your water cleanliness. 

What are the benefits of having a deep clean?

Deep cleaning your heating system does come with an upfront cost, but the long term benefits are well worth it. 

If a dirty system is cleaned thoroughly, you reduce the chances of it breaking down and leaving you without heating and hot water, and you can:

  • Reduce the amount of gas you use to heat your home by up to 7%
  • Get up to 47% more heat out of your radiators, so you won't need your heating on as long to be warm
  • Extend the life of your boiler by enabling it to work efficiently throughout it's lifetime

Extend the life of your central heating system and avoid unexpected boiler breakdown

Reduce the risk of emergency call-outs and expensive part replacements

Reduce energy bills by up to £90

Be kinder to the planet with 7% carbon emission reduction

Monitor for future sludge build-up and protection BEFORE the damage happens

What are the benefits of having a deep clean?

Deep cleaning your heating system does come with an upfront cost, but the long term benefits are well worth it. 

If a dirty system is cleaned thoroughly, you reduce the chances of it breaking down and leaving you without heating and hot water, and you can:

  • Reduce the amount of gas you use to heat your home by up to 7%
  • Get up to 47% more heat out of your radiators, so you won't need your heating on as long to be warm
  • Extend the life of your boiler by enabling it to work efficiently throughout it's lifetime

System Dee​p Clean Included In New Government Campaign 

It's all about resetting your water quality, so you can reduce the risk of system breakdown and reduce the amount of gas you're using to heat your home.

The government have launched a Help for Households campaign where they now recommend doing a deep clean of your heating system before winter. 

You can ask your heating engineer to do this with MagnaCleanse®.

MagnaCleanse system flushing effectively deep cleans your heating system, removing sludge and other debris to help keep it running as efficiently as possible.

Find out more on MagnaCleanse®

Do I need a deep clean if I have a MagnaClean® filter?

Filters can only protect your heating system from debris that is floating in the water and moving through the system. So, if your system has a lot of sludge settled in your radiators or pipework it will stay there, leaving your radiators cold and your boiler working harder. 

To shift any heavy settled sludge and rust from your system, your heating engineer will add a chemical cleaner to help lift it from where it's landed. The deep clean, or flushing process then moves this debris out of the system, bringing it back to optimal performance. 

Corrosion doesn't stop, so your MagnaClean® filter will protect your now clean system from any further build up by capturing the magnetic debris before it gets into your boiler. 

Find out more about MagnaClean®