Hard water causes extra 8.24 million tonnes of Co2 emissions each year

Converting all UK hard water homes to soft water would save up to 8.24 million tonnes of Co2 from being emitted into the atmosphere each year – equivalent to taking 1.8 million cars off the road or planting 136 million trees.1

The latest study into hard water’s impact on the environment, conducted by Harvey Water Softeners, shows that emissions from households with gas boilers and electric heaters could total approximately 4.19 tonnes of Co2 each year just by heating their home.2 Given energy usage with softened water is 23.8% lower for gas heaters and 17.8% lower for electric heaters, this means that the UK could reduce its carbon footprint by 8.24 million tonnes if every household had softened water.

Energy usage with hard water is higher primarily due to limescale build-up. Around 13 million homes in the UK are in hard water regions and the average family of four living in these areas can accumulate a remarkable 70kg of limescale every year. Limescale deposits within a heating system can cause blockages in pipework and boilers, reducing heating efficiency and increasing gas bills.

The research follows a survey conducted by the water softener company which found that 93% of respondents believe a company’s environmental record is important when buying from them, while 82% of consumers are more conscious of their carbon footprint now than five years ago (with 51% answering that they are “a great deal” more conscious).

The new HarveyArc water softener, launched today, aims to reduce households’ carbon footprints even further. The Harvey Arc is non-electric and only regenerates when necessary, saving energy and lowering running costs. The cabinet is made from 62% recycled plastic waste – including contact lens moulds– which helps save 84 tonnes of waste every year that would otherwise end up in landfill. The HarveyArc also uses cutting-edge metering technology to ensure every drop of water is measured, limiting unnecessary water usage.

Tony Jones, General Manager at Harvey Water Softeners, said: “Hard water is a blight on many households’ finances, health, and efforts to protect the environment. It is well documented that hard water causes limescale build-up which can lead to bigger bills and lower energy efficiency. What is not as well-known is the impact it can have on your carbon footprint.

“We are delighted to be able to present this research in conjunction with the launch of our new eco-friendly water softener, the HarveyArc. We are always looking for ways to become even more environmentally friendly and, with the HarveyArc, we are truly leading from the front.”



The survey was carried out by Harvey Water Softeners. Total sample size was 2,223 adults. Fieldwork was undertaken between 17/09/20 and 5/10/20.

To celebrate the launch of the HarveyArc, Harvey Water Softeners has pledged to plant a tree for every demonstration booked in partnership with the Eden Forest Project, while the company has also made a donation to Less Plastics to support their plastic waste reduction projects across the UK.

For more information please contact [email protected]

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