ADEY
British manufacturer of magnetic filters and water treatment solutions for heating and cooling systems, best known for inventing the MagnaClean filter.
Last updated September 26, 2026
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Overview
ADEY is a United Kingdom-based company that designs and manufactures water treatment solutions for residential and commercial heating and cooling systems. Founded by former British Gas engineer Chris Adey, the company is best known for inventing the first magnetic filter, the MagnaClean, in 2003. The MagnaClean filter removes magnetite and other debris from central heating system water, helping to protect boilers, radiators and pipework from corrosion and breakdown. More than 10 million MagnaClean filters have been fitted worldwide, according to the company. ADEY's product range covers magnetic filters, water treatment chemicals, system flushing equipment, scale reducers, water testing services and commercial filtration solutions. The company serves homeowners, residential installers, commercial contractors, social housing providers and new-build projects. Its commercial division supplies inline and sidestream filtration, monitored filtration, water treatment, system pressurisation and air and dirt separation for large sealed heating and chilled water systems. ADEY operates in the UK, Europe, North America, Canada and China. The company has won multiple awards, including three Queen's Awards for Enterprise in Innovation. It also operates UKAS-accredited laboratories and provides water testing services. ADEY is headquartered in Cheltenham, United Kingdom.
History
ADEY was founded by Chris Adey, a former British Gas engineer who used his experience of the daily demands on central heating systems and heating engineers to develop a solution to the problem of system corrosion. In 2003, Chris Adey invented the first magnetic filter, the MagnaClean®, which uses magnets to capture magnetite and other debris from central heating water before it can cause blockages and breakdowns. This invention established the company and created a new product category in the heating industry. The MagnaClean filter became ADEY's flagship product and has since been installed on over 10 million central heating systems worldwide. The company expanded its range beyond filters to include water treatment chemicals, system flushing equipment, scale reducers and water testing services. ADEY also developed commercial-grade filtration solutions for larger heating and chilled water systems, including the MagnaClean Commercial®, MagnaClean DRX® and MagnaClean CMX® ranges. ADEY has grown into a global organisation with operations in the UK, Europe, North America, Canada and China. The company operates UKAS-accredited laboratories and provides water testing services to support its system maintenance best practice approach. It has received numerous awards, including three Queen's Awards for Enterprise in Innovation. ADEY is headquartered in Cheltenham, United Kingdom, and continues to develop products and services aimed at protecting heating and cooling systems, saving money, energy and time, and reducing carbon emissions.
- 2003
Chris Adey invents the first magnetic filter, the MagnaClean®.
MagnaClean filters reach over 10 million installations worldwide.
ADEY receives three Queen's Awards for Enterprise in Innovation.
Products and positioning
Market-leading, award-winning water treatment solutions for residential and commercial heating and cooling systems, focused on protecting systems from breakdown and reducing carbon emissions.
MagnaClean®
The world's first magnetic filter, designed to remove magnetite and debris from central heating systems.
MagnaClean Commercial®
Commercial-grade inline, full-flow magnetic filtration for heating and chilled systems.
MagnaClean DRX®
Compact inline magnetic filter with patented external magnetic belt technology for commercial systems.
MagnaClean CMX®
Commercial magnetic filter range for heating and chilled water systems.
MagnaCleanse®
System flushing solution combining the RapidFlush filter and VibraClean agitator to remove system debris.
Water testing kit
The UK's first central heating digital water test kit, providing instant lab-style results via smartphone in under 2 minutes.
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